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unit-5课后练习答案

unit-5课后练习答案
unit-5课后练习答案

课后练习答案(全新版大学英语综合教程第二版第2册UNIT5)

Book 2

Unit 5 Overcoming Obstacles

Text A True Height

Key to Book 2 Unit 5

Vocabulary

I. 1.

1) startled 2) mere

3) motion 4) sweating

5) stretched out 6) vain

7) On one occasion 8) anxiety

9) emotions 10) ashamed of

11) In my mind's eye

12) recurring

2.

1) Mrs. White's birthday coincides with her husband's.

2) They make big profits on the stuff they sell by creating an artificial shortage, which sends the prices soaring / results in the

soaring of prices.

3) It has been a week of alternate sunshine and rain.

4) Politics and philosophy have been his lifelong passions, although he studied economics at university.

5) Tension came over her, as she waited for her first TV interview.

3.

1) media; dedication to; grace.

2) his competitors; in excitement; hug him; congratulate him on

3) emotions; numerous; intensity; passion for

II. Collocation

1) Mike, a Green, made the suggestion that

a large park be built near the community.

2) In a letter to his daughter, Mr. Smith expressed his wish that she (should) continue her education to acquire still

another degree.

3) There is no reason to hold the belief that humans have no direct moral responsibility to safeguard the welfare of animals.

4) Children need to feel safe about the world they grow up in, and it is unwise to give them the idea that everything they come into contact with might be a threat. 5) Anxiety can result from the notion that life has not treated us fairly.

6) Nobody believed his claim that he was innocent.

III. Words with Multiple Meanings

1. work out in the gym for one hour every morning.

2. Florence has worked as a cleaner at the factory for five years.

3. The wounded man worked his way across the field on his hands and knees.

4. The safe load for a truck of this type

works out at about twenty-five tons.

5. It is difficult to understand how human minds work.

6. To my disappointment, the manager's plan of promoting the new products doesn't work at all.

7. The teacher has a lot of experience of working with children who don't know how to learn.

8. The medicine began to work one hour after the child took it.

.

Comprehensive exercises

I. Cloze

(A) Text-related

1. In my mind's eye

2. groan

3. competitor

4. intensity

5. anxiety

6. tense

7. sweat

8. tension

9. soaring

10. recurring

11. brought me back to earth

12. fantasy

13. sweat

14. congratulate

15.numerous

16. media

(B)Theme-related

1. engineer

2. forget

3. convinced

4. how

5. build

6. accident

7. thought

8. only

9. sharp

10. touched

11. instructions

12. finally

II. Translation

1.

1) It is the creativity and dedication of the workers and executives that turned the company into a profitable business.

2) The prices of food and medicine have soared in the past three months.

3) We plan to repaint the upper floors of the office building.

4) His success shows that popularity and artistic merit sometimes coincide.

5) I don’t want to see m y beloved grandmother lying in a hospital bed and groaning painfully.

2.

Numerous facts bear out the argument/statement/claim that in order to recover speedily from negative emotion, you should allow yourself to cry. You needn’t / don’t have to be ashamed of crying. Anxiety and sorrow can flow out of the body along with tears.

Consider the case of Donna. Take Donna as an example/ Donna is a case in point. Her son unfortunately died in a car accident. The intensity of the blow made her unable to cry. She said, “It was not until two weeks later that I began to cry. And then I felt as if a big stone had been lifted from my shoulders. It was the tears that brought me back to earth and help me survive the crisis.”

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8.计算下列极限: (1) (2) (3) 9.(1)设,求常数a,b。 (2)已知,求a,b。10.计算下列极限: (1) (2)(x为不等于零的常数) (3) (4) (5)(k为正整数) 11.计算下列极限:

(1) (2) (3) (4)(k为常数) (5) (6) (7) (8)(a>0,b>0,c>0)(9) (10) (11) (12)

(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)

(24) 12.当时,无穷小1-x和(1)(2)是否同阶?是否等价? 13.证明:当时,有(1)(2) 14.利用等价无穷小的性质求下列极限: (1)(n,m为正整数) (2) 15.试确定常数a,使下列各函数的极限存在: (1) (2) 16.讨论下列函数的连续性:

(1)的连续性 (2)在x=0处的连续性 17.设函数在[0,2a]上连续,,试证方程在[0,a]内至少存在一个实根。 18.设函数在开区间(a,b)内连续,,试证:在开区间(a,b)内至少有一点c,使得(其中)。 第二章导数与微分 1.讨论下列函数在x=0处的连续性与可导性: (1) (2) 2.设存在,求 3.设,问a,b为何值时,在x=0处可导? 4.已知,求及,并问:是否存在?

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日語 一.下の日本語は中国語を訳して、中国語の翻訳の一日中言葉を。(将下面的日语翻译成汉语,将汉语翻译成日语。)店員てんいん電話でんわ時計とけい 上手じょうず最近さいきん 中国ちゅうごく大学だいがく家族かぞく 電気でんき学者がくしゃ品物しなもの図書館としょかん病院びょういん箱はこ 医者いしゃ時間じかん話はなし 建物たてもの果物くだもの記事きじ奥运オリンピック应该すべきです きょうしつ教室にちようび日曜日 じゅぎょう授業きょうみ興味ゆめ夢りょこう旅行しごと仕事 しょうらい将来じゅんび準備びょうき病気しんかんせん新幹線おんがく音楽 きっぷ切符からだ体ことば言葉

さかな魚じどうしゃ自動車 ぶちょう部長ふじさん富士山 しりょう資料私は好きです我喜欢 二. ( )のなかに適当な助詞を入れなさい。(在括弧内填入适当的助词) 1.中国は広い国ですから,地方()よって料理の味が違います。 答: に 2、王さんは陳さん()返事を書いています。 答: に 3.陳さんは王さん()手紙()書きました。 答: にを 4、郵便局へ小包()送りに行きました。 答: を 5.ここ()住所( ) 名前を書いてください。 答: にと 6、王さん中国人( ),東京大学()留学生です。 答: での 7.先生()おかげ()日本語,上手になました。 答: ので 8.1週間( ) 3日日本語を勉強したいです。

9.田中さんは奥さん()いっしょ()新宿へ出かけました。答: とに 10.奥さんは電話()友達()話をします。 答: でと 11. 張さんは友達()富士山()登りました。 答: とに 12.頂上には雪( ) ありました。 答: が 13.先週新幹線( ) 京都へ行きました。 答: で 14. 東京から京都まで約2時間半()()かかりませんでした。答: しか 15. 京都()いろいろ()所を見物しました。 答: にな 16. 京都には美しいお寺()たくさんあります。 答: が 17. 王さん( ) 日本語( ) 上手です。 答: はが 18. 中国( ) 日本( ) ( ) 広いです。 答: はより 19. 田中さんは1週間()5日会社へ行きます。

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