21世纪英语答案2

Unit1
Structure
一
1) Simon's ill He can't get out of bed.
Answer: Simon's ill -- so much so that he can't get out of bed.
2) She herself believed in freedom. She would rather die than live without it.
Answer: She herself believed in freedom -- so much so that she would rather die than live without it.
3) Piles of work have kept us busy. We can't manage to take a holiday this year.
Answer: Piles of work have kept us busy -- so much so that we can't manage to take a holiday this year.
4) Many contestants (参加比赛者) later failed drug tests. The race had to be rerun.
Answer: Many contestants later failed drug tests -- so much so that the race had to be rerun.
二
1) , how much do you think it's worth? (painting, really, a Picasso (毕加索画作))
Answer: Assuming(that) this painting really is a Picasso
2) , where are we going to get the money? (proposal, accept)
Answer: Assuming(that) the proposal is accepted
3) All we have to do is to explain the problem to her, . (of course, she, prepared, listen)
4) , I doubt they'll take any notice. (even, smokers, do see, health warnings)
Answer: Even assuming(that) smokers do see the health warnings

Unit2
Structure
一
1) You can not bring out the best in your employees except by rewarding success.
Answer: Only by rewarding success can you bring out the best in your employees.
2) Mary was unable to complete the report by the deadline except by working at evenings and weekends.
Answer: Only by working at evenings and weekends was Mary able to complete the report by the deadline.
3) I didn't realize the value of my parents' advice until I myself became a mother.
Answer: Only when I myself became a mother did I realize the value of my parents' advice.
4) They didn't begin to prepare for the math examination until they had finished watching the football game.
Answer: Only after they had finished watching the football game did they begin to prepare for the math examination.
二
1) The young woman described to the policemen (那个男子是如何跑到她跟前抢走她手中提包的).
Answer: the way the man ran up to her and grabbed the bag from her hand
2) All the people working for Sam Walton admire (他管理沃尔玛公司的方法和他对待员工的方式).
Answer: the way he manages Wal-Mart and the way he treats his employees
3) The neighbors were disgusted at (他那样对年迈的父亲说话).
Answer: the way he talked to his old father
4) It's amazing (八岁男孩能那样保持冷静)when he faced the emergency.
Answer: the way the eight-year-old boy managed to stay so calm

Unit3
Structure
一
1) --- Do you help your parents with housework? (do, can)
--- Yes,.
Answer: I do whatever I can
2

) --- Can I have your OICQ number? (mean)
--- ?
--- It's the number you need to chat with others on the Internet.
Answer: Whatever does that mean
3) --- Last night, Sammy didn't come home. His mother was almost worried to death. (happen)
--- , he should have called home.
Answer: Whatever had happened
4) --- You have such a wonderful collection of oil paintings, Mr. Benson! (it, be, you, like)
--- , take it as a wedding gift from an old man.
Answer: Whatever it is that you like
二Rewrite the following sentences after the model, using "know better than to"
1) You ought to be wise enough not to go swimming right after lunch.
Answer: You ought to know better than to go swimming right after lunch.
2) Aunt Betty is certainly too well-experienced to invest all her money in one company's stock.
Answer: Aunt Betty certainly knows better than to invest all her money in one company's stock.
3) Jenny is old enough to have more sense than to spend all her time playing computer games.
Answer: Jenny is old enough to know better than to spend all her time playing computer games.
4) Allen should not have been so silly as to lend such a large sum of money to that untrustworthy cousin of his.
Answer: Allen should have known better than to lend such a large sum of money to that untrustworthy cousin of his.

Unit4
Structure
一
1) Anyone who has talked with him will see Mark is a remarkably intelligent person.
Anyone who has talked with him will see Mark is .
Answer: a person of remarkable intelligence
2) The book is not valuable to one who is not familiar with the subject.
The book is to one who is not familiar with the subject.
Answer: of no value
3) She is a wealthy woman. She never has to worry about money.
She is . She never has to worry about money.
Answer: a woman of wealth
4) In today's job market, basic skills in computer science and foreign languages are very important.In today's job market, basic skills in computer science and foreign languages are
Answer: of great importance
二
1) "If you go on spending money like this, (你一个月就会身无分文)," my friend said to me the other day.
Answer: you will find yourself penniless in a month
2) When the passenger woke up, (他发现自己躺在医院的病房里).
Answer: he found himself lying in a hospital ward
3) Soon after she reported for work, (她发现自己面对的是她承担过的最艰难的工作).
Answer: she found herself faced with the toughest job she had ever taken
4) As time went on, (苏珊发现自己落入了一个无法逃脱的陷阱).
Answer: Susan found herself in a trap from which she could not escape

Unit5
Structure
一 Answer the following questions, using the structure "it is ...

that ... ":
1) What made it possible for a blind boy to set a world record in pole vault?
Answer: It was his dream and hard work that made it possible for him to set a world record in the pole vault.
2) When did you begin to learn English?
Answer: It was nine years ago that I began to learn English.
3) Who has ever exerted (施加) the greatest influence on you?
Answer: It is my parents who have exerted the greatest influence on me.
4) Where did you come across John?
Answer: It was in Central Park that I met John.
二Study the model and complete the following sentences by translating the Chinese into English using what-clause:
1) Obviously (这位发言人想要强调的是) the impact of these findings rather than the process that led to these findings.
Answer: what the speaker wanted to emphasize was
2) It seems that he is never bothered about (别人是如何看待他的行为的).
Answer: what people would think about his behavior
3) The CEO never hesitates to let his employees know (他在为公司做的计划).
Answer: what he is planning for the company
4) The scientist will show the audience (遥控机器人 (tele-operated robot) 能为家庭所做的事).
Answer: what a tele-operated robot can do for a family

Unit6
Structure
一Rewrite the following sentences after the models:
1) I wish it were that simple!
Answer: If only it were that simple!
2) It seems it won't stop raining this afternoon, so we can't go out.
Answer: We could go out this afternoon if only it would stop raining.
3) Everything went wrong just because she told David about that.
Answer: If only she hadn't told David about that, everything would have been all right.
4) It's a pity that she came into the room at that particular moment.
Answer: If only she hadn't come into the room at that particular moment.
二Make sentences with the structure mentioned in the Model as well as the words in brackets:
1) (Tom, intelligent, class, so, he, not, learn, anything , there)
Answer: Tom was too intelligent for his class so he was not learning anything there./Tom is too intelligent for his class so he is not learning anything there.
2) (task, far, difficult , nine-year-old)
Answer: The task is far too difficult for a nine-year-old./The task was far too difficult for a nine-year-old.
3) (there, be, many, people, such , small, room)
Answer: There are too many people for such a small room./There were too many people for such a small room.
4) (noise, become, much, me, so , I , go , complain)
Answer: The noise became too much for me so I went and complained.

Unit7
Structure
一Study the models and complete the following sentences by putting the Chinese in brackets into English.
1) We are literally crawling.

(一定是出车祸了).
Answer: There must be some traffic accident ahead
2) Thomas sounds very knowledgeable about traditional Chinese medicine. (他一定受过专门培训).
Answer: He must have had some special training
3) The draft document is complete in virtually every detail. (起草这份文件一定用了他几个月).
Answer: It must have taken him months to prepare it
4) (凯茜一定是误了火车). She should have arrived here two hours ago.
Answer: Cathy must have missed the train
5) What? It cost you one thousand dollars to fill a hollow tooth? (你一定在夸张)!
Answer: You must be exaggerating
二Rewrite the following sentences after the model, using "be supposed to"
1) Do we have to deposit our bags before entering the supermarket?
Answer: Are we supposed to deposit our bags before entering the supermarket?
2) The spaceship is planned to land on Mars at 10:40 this morning.
Answer: The spaceship is supposed to land on Mars at 10:40 this morning.
3) As a car driver, you ought to know how to change a tire.
Answer: As a car driver, you are supposed to know how to change a tire.
4) The nurses in the hospital are expected to take good care of the patients.
Answer: The nurses in the hospital are supposed to take good care of the patients.
5) We are required to speak only in English when we discuss text organization.
Answer: We are supposed to speak only in English when we discuss text organization.

Unit8
Structure
一 Complete the following sentences after the model, using "now that":
1) (begin, new life, foreign country), everything seems so different and he is understandably excited.
Answer: Now that he has begun a new life in a foreign country
2) The things I've worked so hard for appear to me so shallow and worthless (I, achieve).
Answer: now that I've achieved them
3) (warmer months, come), why don't you take the opportunity to travel around Siberia?
Answer: Now that the warmer months are coming
4) (know, whole truth), she realized how stupid she had been not to suspect that her boyfriend was actually a spy.
Answer: Now that she knew the whole truth
二※ Complete the following sentences by translating the Chinese into English, using "more than + past participle/adj.":
1) When Mount Qomolongma was remeasured in 1987 by a more accurate method, it was found to be (比原先认为的高出24米).
Answer: 24 meters higher than previously believed
2) The central heating system has proved (没有最初期望的那么有效).
Answer: less effective than originally hoped for
3) The new electronic dictionary is sold

(以比预期低得多的价格).
Answer: at a much lower price than predicted
4) Totally fed up with the noise in the surroundings of the hotel, Prof. Sherrington said he'd leave as soon as he finished his work and (一刻也不会多呆在那儿).
Answer: wouldn't stay there a moment longer than necessary