9. “May I take your order now?” “We’d like three black _______ and two green _______.”

A. coffee, cups of teas                               B. coffees, teas

C. cups of coffee, tea                                 D. cup of coffees, teas

【陷阱】誤選C，認(rèn)為coffee和tea均為不可數(shù)名詞，不能后加復(fù)數(shù)詞尾-s，從而排除選項(xiàng)A、B、D。

【分析】選B。有的同學(xué)認(rèn)為 coffee 和tea是物質(zhì)名詞，不可數(shù)，不能用 three coffees, two teas 這樣的表達(dá)。其實(shí)，coffee既可用作不可數(shù)名詞，表示“咖啡”這種物質(zhì)，也可用作可數(shù)名詞，表示“一杯咖啡”，即在口語(yǔ)中 three coffees 就等于 three cups of coffee。同樣，“三杯茶”既可說(shuō)成 three cups of tea，也可說(shuō)成 three teas；“三杯啤酒”既可說(shuō)成 three glasses of beer，也可說(shuō)成 three beers。

10. _____ is a good form of exercise for both young and old.

A. Walk                                                   B. Walking

C. The walk                                              D. To walk

【陷阱】容易誤選A或D。

【分析】最佳答案為B。分析如下：

(1) 首先，選項(xiàng)D不如選項(xiàng)B佳，因?yàn)椋�不定式通常表示特定的�?dòng)作，而動(dòng)名詞才表示習(xí)慣性的動(dòng)作。

(2) 盡管walk用作名詞時(shí)可以表示“散步”，但它是可數(shù)名詞，指的是一次一次的具體的散步，而不表示抽象意義或泛指意義的“散步”，要表示此義，要用動(dòng)名詞 walking。比較：

How about going for a walk? 出去散散步如何?

Walking does good to your health. 散步對(duì)你的健康有益。

類(lèi)似地，dance 和 dancing 以及 swim 和 swimming 的區(qū)別也是一樣：

(1) 名詞的 dance表示“跳舞”，是可數(shù)名詞，指的是一次一次的具體的跳舞，而不表示抽象意義或泛指意義的“跳舞”，要表示后者的意思，要用動(dòng)名詞轉(zhuǎn)化來(lái)的名詞 dancing。比較：

Let’s have a dance. 我們跳曲舞吧。

He is interested in dancing. 他對(duì)跳舞感興趣。

(2) 名詞的 swim表示“游泳”，是可數(shù)名詞，指的是一次一次的具體的游泳，而不表示抽象意義或泛指意義的“游泳”，要表示后者的意思，要用動(dòng)名詞轉(zhuǎn)化來(lái)的名詞 swimming。比較：

She had a swim every day. 她每天游一會(huì)兒泳。

She loves swimming. 她喜歡游泳。

◆精編陷阱題訓(xùn)練◆

1. Ten years had passed. I found she had _______.

A. a few white hairs                                  B. a little white hair

C. some white hair                                    D. more fifty hair

2.—Hi, this way, please.

—OK.I sometimes have no sense of ______ when I arrive at the crossroad.

A. position                                               B. direction

C. situation                                               D. condition

3. Shelly had prepared carefully for her English examination so that she could be sure of passing it on her first ________. 

A. intention                                              B. attempt

C. purpose                                                D. desire

4. I didn’t have to work all weekend — I did it by _______.

A. chance                                                 B. choice

C. accident                                               D. myself

5. “Did you get _____ to the party?” “Yes, I replied to it this morning.”

A. an answer                                             B. an invitation

C. a question                                             D. a letter

6. I paid him ￡50 for the painting, but its true ______ must be at least ￡500.

A. price                                                    B. money

C. value                                                   D. importance

7. His letter was so confusing that I could hardly make any ______ of it.

A. explanation                                          B. meaning

C. sense                                                    D. guess

8. You’ve just missed your ______, and you will have to wait for the next round.

A. chance                                                 B. turn

C. time                                                     D. part

9. —Li Lin is very bright and studies hard as well.

—It’s no ______ he always gets the first place in any examination.

A. question                                               B. doubt

C. problem                                               D. wonder

10. —How can I use this washing machine?

—Well, just refer to the _______.

A. explanations                                         B. expressions

C. introductions                                        D. directions

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