精读1第五单元练习答案

Unit 5 Key to exercises:

Vocabulary

I.Explain the underlined part in each sentence in your own words.

1.that is current

2.difficult to find or obtain

3.make an effort to attain

4.Insist on / Stick to // despite / when faced with

5.Always recognize and praise rightly others’ achievement

6.behave in a way that is natural or normal

II. Fill in the blank in each sentence with a word or phrase taken from the box in its appropriate form.

1. appointed

2. politically

3. account for

4. succumbed to

5. ensured

6. instinctively

7. tough

8. object

9. challenge 10. seductive III. Choose the word that best completes each of the following sentences.

1. D

2. A

3. B

4. C

5. B

6. A.

7. C

8. A

IV. Fill in each blank with one of the two words from each pair and note the difference of meaning between them.

1. a. Morality b. morality c. ethics d. ethics

Morality means the rightness or pureness of behavior; ethics refers to (the study of) questions about what is morally right and wrong

2. a. demands b. asked c. asking d. demanded

Demand commonly suggests a speaker in authority who bluntly insists upon being obeyed and does not intend to be contradicted, while ask means to call on somebody for an answer or to request information or to invite. Also, the usage and structural requirements of these two words are different, as is shown in the exercises.

3. a. real b. genuine c. real d. genuine

Genuine emphasizes the fact of not being spurious, adulterated, imitated or counterfeit, while real refers to physically existent things.

4. a. preserve b. preserve c. save d. save

Preserve emphasizes keeping something that is valuable exactly as it is, without change and even without using it at all. Save suggests rescuing something with a sense of great urgency.

V. Give a synonym or an antonym of the word underlined in each sentence in the sense it is used.

1. truthful (upright, frank)

2. outer (external exterior)

3. rare (uncommon, scant)

4. fire (sack, dismiss)

5. resolutely (determinedly, unyielding)

6. fearless (dauntless, brave, bold)

7. unpleasant (disagreeable)

8. unfashionable (old-fashioned, outdated)

VI. Fill in the blank in each sentence with an appropriate form of the given capitalized word in brackets.

1. inexperienced

2. rightful

3. impoliteness

4. handful

5. heady

6. straightening

7. sleepy

8. beggar

Grammar

I. Explain the functions of the following imperative sentences.

1.Givinginstruction

2.Expressing a wish

3.Making a suggestion

4.Giving an order

5.Giving an order and expressing anger

6.Inviting

7.Warning

8.Forbidding

II. R ewrite the following using the imperative.

1. Take a break.

2. Let’s not stay here any longer.

3. Stop criticizing others.

4. Have another biscuit, please.

5. In this play you be the princess and I be the witch.

6. Go and buy yourself a new pair of shoes.

7. Don’t you ever be late again! / Never be late again!

8. Let us never forget the brave men and women who made the ultimate sacrifice. III. Add a question tag to the following statements.

1. will/can/can’t you

2. will / won’t you

3. will you

4. shall we

5. would/could/can you

6. will/won’t/can’t you

7. will you

8. shall we

IV. Arrange the following sentences according to the degree of politeness.