Unit1 Festivals around the world
1．—I haven't got the reference book yet，but I'll have a test on the subject next month.
—Don't worry.You__shall__have it by Friday.
2．His favorite food is fried snacks and soft drinks.__It__ is no surprise that losing weight is just his dream.
解析：句意：他最喜爱的食物是油炸小吃和不含酒精的饮料，毫不奇怪减肥对他来说只是个梦。it在这里作形式主语。“that losing weight is just his dream”是真正的主语。
3．It is by no means clear __what__ the president can do to end the strike.
解析：句意：总统能做什么来结束罢工，这点完全不清楚。本句中的it是形式主语，真正的主语是从句what the president can do to end the strike。在从句中，what作do的宾语。
4．__While/Although/Tough__online shopping has changed our life，not all of its effects have been positive.
5．At school, some students are active __while__ some are shy, yet they can be good friends with one another.
6．You never know where happiness will turn __up__next, so grasp every chance around you.
7．— Where did you get robbed of your handbag, Madam?
—It was at the stop __where__ I usually wait for my bus for work.
8．As the road to the airport is under reconstruction, we'd better set __off/out__ early to avoid the traffic jam.
9．__It__ is surprising that there are so many Chinese restaurants in Toronto.
10．Either the judge or the lawyers __were__ wrong on the case at that moment.
解析：句意：那时，在这件案子上，不是法官错了，就是律师们错了。并列主语由either...or...，neither...nor...等连接，谓语应与or或nor后面的主语保持一致，根据题干中or后的the lawyers可知用复数，又根据at that moment可知用一般过去时。
11．Legend has it that the origin of the Dragon Boat Festival is__to_recall__(recall) the soul of Qu Yuan.
12．When the sports hero turned __up__ at our party, he was welcomed with open arms.
解析：句意：当那位体育英雄在我们的宴会上露面时，人们都张开双臂欢迎他。turn up出现，露面。体育英雄在宴会上出现(turn up)才能受欢迎，故填up。
13．—Could you tell me the trick __of__making such tasty cakes?
—Well, I just follow the directions in the cookbook.
14．India attained __independence__(depend) in 1947, after __a__ long struggle.
15．Traditionally, college students hold a graduation ceremony to encourage themselves before they set __off/out__ on their life journey.
1．It is amazing that great changes __have_taken_place__(发生) in the rural areas in the last two decades.
2．The best way is __to_hold_your_breath__(屏住呼吸) and pretend to be dead when you come across a bear in the forest.
3．He came to me __in_the_belief_that__(相信) I could help him and be relied on.
4．Celebrating the Dragon Boat Festival will __remind_us_of__(使我们想起) the great poet, Qu Yuan.
5．He apologized for having parked the car in her garage __without_permission__(未经许可)．
__It_is_obvious_that__ the beauty is on familiar terms with the humorous musician with a long beard.
The most experienced and helpful teachers are __the_ones_who(＝those_who)__ can not only offer us knowledge but also tell us the way how to __gain_knowledge__.
His room, filled with all kinds of books here and there, __looks_as_if/though__ it is a small library.
On getting the __permission__， they __set_off/out_for__ the disaster-hit area.
__Finding__ the wing of his dream broken, the millionaire __drowned_his_sadness__ in alcohol.
1．Either you or the headmaster are to hand out the prizes to those gifted students at the meeting.
2．Great changes have been taken place in the school over the past three years, which deeply impresses me.
3．She has been looking forward to have a chance to pay a visit to Zhangjiajie.
4．You can rely on it that he will turn up on time, because he always keeps his words.
5．There is not necessary for you to have told her about the bad news.
6．In some places women are expected to earn money when men work at home and raise their children.
1．The country, __covered__ (cover) with cherry tree flowers, looks as though it __is_covered__ (cover) with pink snow.
2．__If__ the neighbors do not give any sweets, the children might play a trick __on__ them.
解析：第一空考查状语从句引导词，根据语意，此处表示条件；第二空为固定短语，“play a trick on sb.”。
3．Festivals and celebrations of all kinds __have_been_held__ (hold) everywhere since ancient times.
解析：考查动词时态与语态。根据since可知应用现在完成时，hold与主语之间为动宾关系，故填have been held。
4．Some Western countries have very exciting carnivals, __which__ take place forty days before Easter, usually in February.
5．India has a national festival __on__ October 2 to honor Mohandas Gandhi, __the__ leader who helped gain India's independence.
6．Easter is __an__ important religious and social festival for Christians around the world.
7．He had looked forward to __meeting__ (meet) her all day, and now he was alone with his roses and chocolates, like a fool.
解析：考查固定短语的用法。look forward to doing “期望做某事”。
8．As he sadly passed the tea shop on the corner on his way home, he heard a voice __calling__ (call) him.
9．She could be with her friends right now __laughing__ (laugh) at him.
10．__Finding__ (find) that Zhinü was heart-broken, her grandmother finally decided to let the couple cross the Milky Way __to_meet__ (meet) once a year.
Some festivals ①__are_held__(hold) to honour the dead or to satisfy the ancestors, who might return either to help ②__or__ to do harm. For the Japanese festival Obon, people should go to clean graves and light incense ③__in__ memory of their ancestors. They also light lamps and play music ④__because__ they think that this will lead the ancestors back to earth. In Mexico, people celebrate the Day of the Dead in early November. On this important feast day, people eat food in the shape of skulls and cakes ⑤__with__ “bones” on them. They offer food, flowers and gifts to ⑥__the__ dead. The Western holiday Halloween also had its origin in old ⑦__beliefs__(believe) about the return of the spirits of dead people. It is now a children's festival, ⑧__when__ they can dress up and go to their neighbours' homes ⑨__to_ask__(ask) for sweets. If the neighbours do not give any sweets, the children might play a trick ⑩__on__ them.
The Spring Festival always__reminds_us_of_the_family_reunion__.
There are all kinds of activities in the Spring Festival，as a result ，children especiallylook forward to it .
It's a good time for adults when they canexpress appreciation ，make an apology orforgive each other .
It is a pity that some people can'tturn up at such a great festival for a variety of reasons.
The Spring Festival always reminds us of the family reunion, when there are all kinds of activities, as a result, children especially look forward to it. It's also a good time for adults when they can express appreciation, make an apology or forgive each other. However, it is a pity that some people can't turn up at such a great festival for a variety of reasons.
Unit2 Healthy eating
1．Many people have come to realize that they should go on __a__ balanced diet and make room in their day for exercise.
解析：句意：许多人已经意识到他们应该保持平衡的饮食，而且每天留时间进行锻炼。a balanced diet平衡的饮食。
2．—How was your recent trip to Sichuan?
—I've never had a __more__ pleasant one before.
解析：考查形容词的比较级。句意：——你最近去四川的旅行怎么样？——这是让我最为愉快的旅行了。否定词never与比较级a more pleasant构成最高级的含义。
3．—In this day and age, women can have children and jobs as well.
—I can't agree more.It's great to have the two__combined__(combine)．
4．Since nobody gave him any help, he __must__ have done the research on his own.
解析：本题考查情态动词的用法。句意：因为没有人帮助他，他一定是自己独立完成的研究。must have done表示对过去事实的肯定推测。
5．While prices are rising so fast，many people are working out ways to cut __down__their expenses.
6．You'd better take into account your own __strengths__(strong) and weaknesses before choosing a major.
7．The child should be punished.You shouldn't let him get __away__ with telling lies.
解析：句意：这孩子应受到惩罚。他撒谎你不应该不处罚他。get away with侥幸成功；逃脱处罚。
8．—Are you pleased with what he has done?
—Not a bit.It couldn't be any __worse__(bad)．
解析：考查形容词的比较级。答语中的Not a bit表示“一点儿也不”，由此可知，第二个说话人认为他做的事情糟糕透顶，此处是否定词与比较级连用表示最高级含义。
9．Mr.Stevenson is great to work for—I really couldn't ask for a __better__(good) boss.
解析：考查比较级用法。“can't/couldn't...＋比较级”表示最高级含义。根据前半句“Mr.Stevenson is great to work for”可知，Stevenson是一个不错的老板，因此说“我真的找不到个比他更好的老板了”，表示在我看来他是最好的。
10．Whom do you expect to have __solve__(solve) the problem of overloaded school buses?
解析：句意：你希望让谁来解决校车超载的问题？expect to do sth.表示“期望做某事”；have sb.do sth.表示“让某人做某事”。本句是对“expect to have sb.do sth.”中的宾语sb.进行提问。
11．My uncle hasn't been able to quit smoking, but at least he has cut__down__.
12．—Why do you choose to work in an international travel agency?
—Well, you know, English is my__strength__(strong)．So it is my best choice.
13．I had hoped to take a holiday this year but I wasn't able to get__away__.
14．No one __could__ be more generous；he has a heart of gold.
15．You are working too hard.You'd better keep a __balance__ (balanced) between work and relaxation.
解析：本题考查名词的用法。句意：你工作太努力了，你最好在工作和休闲方面保持平衡。keep a balance“保持平衡”。
1．Sometimes, __telling_lies__(说谎) is not necessarily harmful, for example, white lies.
2．The best thing to do with your weight problem is to limit yourself to 1,000 calories a day to try to __lose_weight__(减肥)．
3．He had a burning desire __to_win_back__(赢回) his father's love and confidence.
4．He pretended to be ill and skipped school, but he didn't __get_away_with_it__(逃脱处罚)．
5．__Neither_you_nor_I__(你我都不)am so energetic as to stay up all night watching movies.
I think nothing is __more_painful__ than losing a devoted friend.
Now our country has paid much attention to __keeping_a_balance__ between economic development and environment.
I won't have you __playing_a_trick(＝tricks)__ like that.
__With_the_help_of_the_doctor(＝With_the_doctor's_help)__，I could lose weight and become slim again.
Tom __must_have_apologized_to(＝must_have_made_an_apology_to)__ him and got his forgiveness, for they are having fun there, talking and laughing merrily.
1．She is so fat that she has made up her mind to go on diet to lose weight.
2．Both of the two restaurants have their strength and weaknesses, so they decided to combine them together into a larger one.
3．They stood there, glared at each other without a word.
4．Knowledge can be great benefit to everybody.
5．China today is no longer that what she used to be thirty years ago.
6．I'm very sorry to have had you wait for so long.
7．—What do you think of the concert?
—I have never seen a more better one.
8．Whom do you expect to have helped you with your English.
1．Suddenly he saw his friend Li Chang__hurrying__(hurry) by.
解析：考查“see＋宾语＋宾补”结构。hurry与his friend 之间为主动关系，且表正在进行。
2．He could not have Yong Hui__getting__(get) away with telling people lies!
3．Perhaps__with__a discount and a new sign he could win his customers__back__ .
4．Their balanced diets became such a success__that__before long Wang Peng became slimmer and Yong Hui put__on__more weight.
解析：第一空考查句式“such...that...”；第二空考查固定短语“put on weight”，意为“增加体重”。
5．Wany Peng was amazed__at__this and especially at the prices.
解析：考查固定短语，be amazed at 意为“因……而惊讶”。
6．Something terrible__must__have happened if Li Chang was not coming to eat in his restaurant__as__ he always did.
解析：第一空考查情态动词，表示对“过去情况非常肯定的推测”用must have done；第二空考查as的用法，表示“正如，像……”。
7．But don't you think it would be better if you were a bit__thinner__(thin)．
8．I found your menu so__limited__(limit) that I stopped__worrying__(worry) and started advertising the benefits of my food.
解析：第一空考查词形转换“find＋宾语＋adj.”，limited“有限的”；第二空考查“stop doing sth.”。
9．According__to__my research, neither your restaurant nor mine__offers__(offer) a balanced diet.
10．They were both enjoying dumplings and breast of chicken__cooked__(cook) with garlic.
They began to talk about menus and ①__balanced__(balance) diets.“According to my research, neither your restaurant ②__nor__ mine offers a balanced diet，” explained Wang Peng.“I don't offer enough fibre ③__and__ you don't offer enough body-building and energy-giving food. Perhaps ④__we__ ought to combine our ideas and provide a balanced menu ⑤__with__ food full of energy and fibre.” So that is what they did. They served raw vegetables with the hamburgers and boiled the potatoes rather than ⑥__fried__(fry) them. They served fresh fruit with the ice cream. In this way they cut down the fat and increased the fibre in the meal. Their balanced diets became such a success ⑦__that__ before long Wang Peng became ⑧__slimmer__(slim) and Yong Hui put on more ⑨__weight__(weigh)．After some time the two found that their business cooperation had turned into ⑩__a__ personal one. Finally they got married and lived happily ever after.
Here are some practical tips for you to__keep_healthy/fit__.
You are supposed to__have_a_healthy_and_balanced_diet__.
Don't eat food__containing/which_contains__too much sugar and fat.
They will make you__put_on/gain_weight__easily.
You should__cut_down__the amount of them.
It is necessary to have enough rest__for_the_benefit_of__your health.
Here are some practical tips for you to keep healthy/fit. First of all，you are supposed to have a healthy and balanced diet. Besides, don't eat food containing too much sugar and fat，which will make you put on/gain weight easily. Therefore, you should cut down the amount of them. Meanwhile, it is necessary to have enough rest for the benefit of your health.
Unit3 The Million Pound Bank Note
1．—Jack can't concentrate on his lessons recently.
—Yes, that might account__for__his low score in the last test.
2．The realization of the Chinese dream won't affect dreams of other countries.__On__ the contrary, it helps them realize their own dreams.
解析：句意：中国梦的实现不会影响其他国家的梦想，相反地，这会帮助他们实现梦想。由句意可知，选on the contrary，意为“相反地”。
3．__Whenever__ I have to give a speech, I get extremely nervous before I start.
4．Exactly __when__ the potato was introduced into Europe is uncertain, but it was probably around 1565.
解析：本题考查名词性从句的引导词。句意：马铃薯是在什么时候被引进到欧洲的不确定，但是可能是在1565年左右。分析结构可知，此处是主语从句的引导词。根据but并列句中的关键词 around 1565可以知道，此处表示“时间”，故要用when引导主语从句。
5．The professor thought that the idea the young engineer brought __up__ was worth considering.
解析：句意：教授认为那位年轻的工程师提出的想法值得考虑。分析句子结构可知，“the young engineer ________”是定语从句，修饰先行词the idea，且根据句意可知，bring up“提出”符合句意。
6．—What will we do tomorrow?
—It is unclear whether the meeting will go __ahead__ as planned.
7．“Every time you eat a sweet, drink green tea.” This is __what__ my mother used to tell me.
8．There is much chance __that__ Bill will recover from his injury in time for the race.
解析：There is much chance that...为常用句型，意为“很有可能……”。that引导的从句说明chance的内容，等同于同位语从句。
9．I found Jane __seated__(seat) at the desk, __doing__(do) her homework carefully.
解析：句意：我发现简坐在桌旁认真地做作业。seat为及物动词，用法为be seated或seat oneself，所以Jane后可接seated或sitting作宾补；doing her homework carefully是现在分词短语作伴随状语。
10．—Could I use this dictionary?
—Just go__ahead__.It's a spare one.
解析：本题考查情景交际。句意：“我能用一下这本词典吗？”“________，这是多余的一本。”根据“It's a spare one.”可知，后者应该是同意前者使用这本词典。just go ahead意为“用吧”，表示同意，符合语境。
11．There is no greater pleasure than lying on my back in the middle of the grassland，__staring__(stare) at the night sky.
解析：本题考查非谓语动词。句意：没有什么能比躺在草地中央凝视着夜空让人感到更高兴的事儿了。根据句中的on my back可知，lying的动作由“我”发出，而stare的逻辑主语也是“我”，“凝视夜空”的动作由“我”主动发出，故用现在分词短语作状语，表示伴随。
12．Even the best writers sometimes find themselves __lost__(lose) for words.
解析：考查非谓语动词。句意：即使最好的作家有时发现自己无以言辞。be lost for words“说不出话来”。然后结合“find＋宾语＋宾语补足语”结构可知，此处用lost作宾语补足语。
13．Whenever I made mistakes, the teacher pointed them out with __patience__ (patient)．
14．Born into a family with three brothers，David was brought __up__ to value the sense of sharing.
15．He seems to be giving the impression that he didn't enjoy himself in Paris.__On__ the contrary, he had a wonderful time.
解析：句意：他好像是在给人一个印象：他在巴黎玩得不快乐。正相反，他玩得很开心。on the contrary“正相反”。
1．A poor woman dressed __in_rags__(衣衫褴褛) and shaking with cold was struggling on a lonely road, while the merciless rain was beating her without pause.
2．When wandering in the strange city, he met one of his old classmates __by_accident/chance__(偶然)．
3．The businessman put __a_large_amount/sum_of_money__(一大笔钱) in the envelope carelessly.
4．Once you are determined to cut down on smoking, __on_no_account__(绝不) should you give up halfway.
5．__As_for__(关于) the water pollution, the local government has taken action to deal with it and before long you will find the river clean again.
__Whatever_we_do__， we ought to take into account the interests of the state.
__Contrary_to__ what many people thought, the graduate came here not to __seek_fame__ or money but the true value of life.
Indeed, they worked hard day and night these years in the hope of paying off all their debts, __which_accounted_for__ their aged look.
__It_is_well-known_that__eating too much fat and sugary food makes one put on weight easily.
__It_is__ Doctor Li __that/who__ advises me to add more fibre to my diet and avoid eating sugary desserts without limits.
1．They came on the scene，which a traffic accident happened.
2．Weather permits, we will set off for the warehouse for some bargains.
3．Spotting shopping shoulder to shoulder with a girl, I felt very embarrassed.
4．Born into a family with three brothers, David brought up to value the sense of sharing.
5．I won't take chance on a July holiday in Britain—it always rains.
6．I often see some beggars in rag when I walk on the street，and I always offer them some food.
1．At this moment, they see a penniless young man__wandering__(wander) on the pavement.
2．It is Henry Adams, an American businessman，__who/that__is lost in London and does not know what he should do.
3．You must come whenever you want and have__whatever__you like.
4．It's__amazing__(amaze) how much pleasure you get out of the simple things in life.
5．I did hear that the Bank of England__had_issued__(issue) two notes in this amount.
6．I'm so sorry, sir, so sorry，__but__I cannot change this bank note.
解析：考查固定句式“I'm sorry, but...”此结构中but不表示转折，而是引出下文，进行解释、说明。
7．Henry is surprised but the owner and the waiter are__shocked__(shock)．
8．I wonder, Mr Adams，__whether/if__you'd mind us asking a few questions.
9．The fact is__that__I earned my passage by working as an unpaid hand，__which__accounts for my appearance.
HENRY: Oh, yes. Well, towards nightfall I found myself ①__carried__(carry) out to sea by a strong wind. It was all my fault. I didn't know whether I could survive until morning. The next morning I'd just about given myself up for lost ②__when__ I was spotted by a ship.
OLIVER: And ③__it__ was the ship that brought you to England.
HENRY: Yes. The fact is that I earned my passage by working ④__as__ an unpaid hand, which accounts for my ⑤__appearance__(appear)．I went to the American embassy ⑥__to_seek__(seek) help, but...(The brothers smile at each other.)
RODERICK: Well, you mustn't worry about that. It's ⑦__an__ advantage.
HENRY: I'm afraid I don't quite follow you, sir.
RODERICK: Tell us, Mr Adams, what sort of work did you do in America?
HENRY: I worked for a mining company. Could you offer ⑧__me__ some kind of work here?
RODERICK: Patience, Mr Adams.⑨__If__ you don't mind, may I ask you how much money you have?
HENRY: Well, to be honest, I have ⑩__none__.
Mark Twain was one of the best known American writers in the nineteenth century and__was_brought_up__in Missouri in the middle part of the United States.
His hometown__lay_on__the banks of the Mississippi River, where he spent his childhood.When he grew up，he__took_a_chance__to work as a sailor on a river boat for some time，which__was_not_permitted__by his father at first.
After__seeking_some_useful_advice_from__his father，he decided to become a writer，which helped him make an amount of money.
Many of his works have been translated into many languages，which__accounted_for__the reason why he and his works__are_deeply_loved_by_readers__throughout the world.
Mark Twain，one of the best known American writers in the nineteenth century，was brought up in Missouri in the middle part of the United States.
Mark Twain's hometown lay on the banks of the Mississippi River，where he spent his childhood. When he grew up，he took a chance to work as a sailor on a river boat for some time，which was not permitted by his father at first. After seeking some useful advice from his father, he decided to become a writer, which helped him make an amount of money.
Mark Twain wrote a lot of novels，some of which have been translated into many languages, which accounted for the reason why he and his works are deeply loved by readers throughout the world.
Unit4 Astronomy：the science of the stars
1．It is obvious __what__ the local government can do to protect the environment for future generations.
解析：句意：为了子孙后代，当地政府在保护环境方面所能做的事情是显而易见的。It为形式主语，________ the local government can do to protect the environment for future generations是真正的主语，该主语从句缺少宾语，且表示物，故填what。
2．New technologies have made __it__ possible to turn out new products faster and at a lower cost.
3．All possible means __have_been_taken__(take) to prevent the river __being_polluted__ (pollute)．
4．If they win the final tonight, the team are going to tour around the city __to_be_cheered__(cheer) by their enthusiastic supporters.
5．The meeting was held in a lively atmosphere __where__ everybody felt to share his ideas.
6．During those four years, he worked day and night, thus __improving__(improve) his theory gradually until it was complete.
7．Those reports included one case, __where/in_which__ a fire broke out and destroyed two cars，although there were no injuries.
8．I suppose by the time I come back in ten year's time all these old houses will __have_been_pulled__ (pull) down.
9．Sometimes he found __it__very hard to fall asleep at night, so he went to see the doctor.
10．Susan made __it__ clear to me that she wished to make a new life for herself.
11．The manager wants to see changes in the company, and I am sure he will __in__ time.
12．It remains to be seen __whether__ the newly formed committee's policy can be put into practice.
解析：本题考查名词性从句。句意：那仍然得看新形成的委员会政策能否付诸实践。It在此为形式主语，故seen后为真正的主语从句，又由remains to be seen可知存在不确定的意思，所以用whether是否。
13．The top leaders of the two countries are holding talks in a __friendly__(friend) atmosphere.
14．—Thank God you're safe!
—I stepped back, just in time __to_avoid__(avoid) the racing car.
解析：答语句意：我退后了一步，正好避开了奔跑的汽车。in time to do sth.“正赶上做某事”。
15．It's said that the power plant is now twice __as__ large as what it was.
1．An exceptionally big fire __broke_out__(爆发) at midnight.Luckily, firefighters arrived just __in_time__(及时) for the rescue.
2．Atmosphere __blocks_out__(挡住) a large amount of harmful light from space.
3．__Now_that__(既然) we have finished the design, the company, __in_its_turn__(轮到), will do the construction.
4．__On_a_global_scale__(在全球范围内), AIDS may well become the leading cause of infant death.
5．He, as well as his sister, __was_brought_up__(被抚养) in the mountainous area where education facilities are far from satisfactory.
__It_is_suggested_that__measures should be taken to prevent factories from discharging harmful gases into the air.
Whether the global warming will become more serious __depends_on_whether__ our activities will produce more carbon dioxide.
Most of the evidence is destroyed, __which_makes_it_impossible__to prove that the food is poisonous.
The witness's deions were __too__ unbelievable __to__ be of any real value.
There is nothing __more_pleasant_than__ a cheerful word of greeting.
1．She has got into the bad habit of reading in the bed, which is harmful for her eyes.
2．All theories come from practice and in return serve practice.
3．The twin brothers stood under the tree, puzzling and saying nothing.
4．The sun heats the earth, which makes possible for plants to grow.
5．The new stadium being built for the next Asian Games will be three times as larger as the present one.
6．You'll succeed on time because you are always working hard.
1．__What__is even more important is that__as__the earth cooled down, water began to appear on its surface.
2．According to a widely__accepted__(accept) theory, the universe began with a “Big Bang”__that/which__threw matter in all directions.
3．It was not immediately obvious__that__water was to be fundamental__to__the development of life.
解析：第一空考查主语从句，it为形式主语，that引导的从句是真正的主语；第二空考查固定短语，be fundamental to 意为“是……的基础”。
4．As a result__of__this, many scientists believe the earth may become too hot __to_live__(live) on.
5．__Whether__life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
6．__What__many scientists believe is that the continued presence of water allowed the earth to dissolve__harmful__ (harm) gases and acids into the oceans and seas.
7．They are putting too much carbon dioxide__into__the atmosphere，__which__prevents heat from escaping from the earth into space.
8．Leaving the moon's gravity__was/is__(be) not as painful as leaving the earth's.
No one knows exactly how the earth began, as it happened so long ago. However, according to a ①__widely__(wide) accepted theory, the universe began ②__with__ a “Big Bang” that threw matter in all directions. After that, atoms began to form and combine to create stars and other bodies.
For several billion years after ③__the__ “Big Bang”， the earth was still just a cloud of dust. What ④__it__ was to become was ⑤__uncertain__(certain) until between 4.5 and 3.8 billion years ago ⑥__when__ the dust settled into a solid globe. The earth became so violent ⑦__that__ it was not clear whether the shape would last or not. It ⑧__exploded__(explode) loudly with fire and rock.They were in time to produce carbon, nitrogen, water vapour and other gases, ⑨__which__ were to make the earth's atmosphere. What is even more important is that as the earth cooled down, water began to appear ⑩__on__ its surface.
Is there life on Mars? We don't know.Can we land on Mars successfully? That all__depends_on__the development of science and technology.
Until now we__have_known_a_little_about__Mars，but that's not enough.__There_exists__almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100 degrees below zero at night and it__prevents_us_from_living_there__.
__Now_that__Mars is quite__different_from__our earth，if we are to go to Mars__in_time__， we should take along our own oxygen, food, clothing__as_well_as__shelter.
Is there life on Mars? We don't know.Can we land on Mars successfully? That all depends on the development of science and technology. Until now we have known a little about Mars, but that's not enough. There exists almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100 degrees below zero at night, which prevents us from living there. Now that Mars is quite different from our earth, if we are to go to Mars in time, we should take along our own oxygen，food，clothing as well as shelter.
Unit5 Canada—“The True North”
1．My first __impression__(impress) of him was that he was a kind and thoughtful young man.
2．He heard someone following him，and glanced round. He caught sight __of__ a dark figure in the shadows.
解析：句意：他听到有人在跟踪他，便向周围扫了一眼，发现阴暗处有一个黑影。catch sight of看见；瞥见，符合句意。
3．The equipment for disabled people should be __within__ easy reach in public places.
解析：考查介词短语。句意：在公共场所，残疾人使用的设施应该方便残疾人。由句意可知，填within，within easy reach在附近(距离不远)。
4．Scientists have found evidence __that__ global warming caused the world's first horses to become smaller nearly 50 million years ago.
5．—When did you get home last night?
—It was almost midnight __when__ we arrived home.
解析：考查状语从句。句意：——你们昨晚什么时候到家的？——我们到家的时候差不多是午夜了。答语中“It was almost midnight”为主句，空处引导时间状语从句，应用连词when。此题容易误填that，误把答语当作强调句型。如果是强调句型，应是：It was at midnight that we arrived home。
6．—Have you finished the report?
—Oh, sorry.It was so noisy in the office that I couldn't settle __down__ to write anything.
7．At the meeting，all the people were deeply impressed __with__ her brilliant report.
解析：句意：会议上，所有人都对他精彩的报告留下了深刻的印象。impress sb.with.../sb.be impressed with...以……给某人留下深刻印象。
8．Most people would agree that nuclear science should be developed to benefit the human beings __rather__ than harm them.
9．—Our journey cost a lot of money.
—Really? Well，that doesn't matter __so/as__ long as you enjoyed yourselves.
解析：句意：——我们的旅行花了很多钱。——真的吗？不过没关系，只要你们玩得愉快。as/so long as“只要”。
10．A company__whose__ profits from home markets are declining may seek opportunities abroad.
解析：句意：一家在国内市场利润下降的公司可能会去国外谋求机会。分析题意和句子结构可知，主句中a company是主语，may seek是谓语，opportunities是宾语，而所填词要引导一个定语从句，该从句中profits是主语，are是系动词，declining是表语，profits前缺少定语，而且profits与先行词构成所属关系，故用whose引导定语从句，同时whose在从句中作profits的定语，符合题意和结构要求。
11．What we expect from you is working hard __rather__ than hardly working.
解析：句意：我们期待你的是努力做事，而不是几乎不做事。working hard 和hardly working为完全相反的两个概念，显然前后为对照、对比关系，是努力做事，而不是(rather than)几乎不做事。
12．Facing up to your problems rather __than__ running away from them is the best approach to working things out.
13．There's a tradition in our office __that__ when it's somebody's birthday, they bring in a cake for us all to share.
14．Your house is always so neat—how do you manage __it__ with three children?
15．It saves time in the kitchen to have things you use a lot__within__easy reach.
解析：within one's reach为习惯搭配，意为“伸手可及”。
1．Xu Sanduo's wonderful performance has inspired many people to believe that happiness in life is __within_everyone's_reach__(人人伸手可及)．
2．Not only is Canada a travelling paradise for tourists but also an ideal fairyland to __settle_down__(定居) for people all over the world.
3．He __has_a_gift_for__(对……有天赋) communication, and thus he __manages_to__(设法做到) mix with all kinds of people in his job.
4．He prefers to work out the puzzle by himself __rather_than__(与其/不愿) seek help from others.
5．It is suggested that government __should_take_measures__(采取措施) to prevent the infectious disease from spreading.
Standing at the top of the tower, I __found_myself_surrounded__ by some clouds.However, I could still see the mountains __in_the_distance__.The beautiful scenery impressed me a lot.
Canada, with an area of approximately 10 million square kilometers and a population of slightly over 30 million, is __the_second_largest_country__ in the world.
The news that the whole family would __go/be_on_a_trip_to_Beijing__ cheered the kids up.
The constant sunshine and mild climate as well as its impressive scenery make southern California __one_of_the_most_popular/attractive_tourist_destinations__.
I am surprised at __the_fact_that__ lead is especially harmful to children and can lead to learning difficulties and behavioral problems.
1．He would rather to stay at home alone than go to the cinema with his friends.
2．With water surrounded the town on all sides, the local people have to go out by boat.
3．We should take measure to prevent pollution in our city.
4．As long as I can see, there is only one possible way to keep away from the danger.
5．On arriving at the destination, we were impressing by the beautiful scenery and people's living conditions.
6．Finally he caught sight of the young man's light overcoat in distance.
1．__Going__(go) eastward, you will pass mountains and thousands of lakes and forests，as well as wide rivers and large cities.
2．The girls were surprised at the fact__that__ocean ships can sail up the Great Lakes.
3．__On__the way to the station, he chatted__about__their trip.
解析：第一空为“on the way to”，意为“去……的路上”；第二空为“chat about”意为“聊关于……的事”。
4．Many of them have a gift__for__riding wild horses and can win thousands of dollars__in__prizes.
解析：第一空为固定短语，“have a gift for”表示“在……方面有天赋”；第二空考查介词用法，表示“以……形式”，故填in。
5．People say it is Canada's most beautiful city，__surrounded__(surround) by mountains and the Pacific Ocean.
6．It has one-third of the world's total fresh water, and much of__it__is in the Great Lakes.
That afternoon aboard the train, the cousins settled down in their seats.①__Earlier__(early) that day, when they crossed the Rocky Mountains, they managed to catch sight of some mountain goats and even ②__a__ grizzly bear and an eagle.③__Their__ next stop was Calgary, ④__which__ is famous for the Calgary Stampede.Cowboys from all over the world come to compete ⑤__in__ the Stampede.Many of them have a gift ⑥__for__ riding wild horses and can win thousands of dollars in prizes.⑦__After__ two days' travel, the girls began to realize that Canada is quite empty.At school, they ⑧__had_learned__(learn) that most Canadians live within a few hundred kilometres of the USA border, and Canada's population is only ⑨__slightly__ (slight) over thirty million, but now they were amazed ⑩__to_see__(see) such an empty country.
1．One of our biggest dreams is__to_visit_Canada__.
3．We decided to take a plane__rather_than__drive.
4．In the evening we__went_aboard__.
5．__At_dawn__，we were already over Canada.
6．We__caught_sight_of__many lakes and mountains__in_the_distance__.
7．We__were_greatly_impressed_by__the beauty of the scenery.
One of our biggest dreams is to visit Canada.However, it was not until last year that we managed to make it.We decided to take a plane rather than drive，and in the evening we went aboard.At dawn, we were already over Canada，where we caught sight of many lakes and mountains in the distance.We were greatly impressed by the beauty of the scenery.