318] _______ the two oceans the Pacific is ______ .

[譯文] 在這兩個海洋中，太平洋是最大的一個。

　 A. In; the large 　 B. For; larger

　 C. Of; larger 　 D. Of, the larger

[答案及簡析] D。 在兩個當中比較用比較級；在具體數(shù)目前的介詞用of。

317] If city noise _______ from increasing, people _______ shout to be heard even at the dinner table 20 years from now.

[譯文] 如果不制止噪音繼續(xù)污染，從現(xiàn)在起20年后人們就不得不在吃飯的時候大聲喊叫才能聽得見。

　 A. are not kept; will have to 　 B. are not kept; have to

　 C. do not kept; will have to 　 D. do not kept; have to

[答案及簡析] A。 keep sth. from doing sth.的被動形式；have to可以用于任何人稱。

316] I _____ ten minutes to decide whether I should reject the offer.

[譯文] 給我十分鐘的時間再決定我是否拒絕幫助。

　 A. gave 　 B. was given

　 C. was giving 　 D. had given

[答案及簡析] B。 give是及物動詞，give sb. sth的被動形式。

315] The people are ______ young workers between the age of twenty and thirty.

[譯文] 這些人大部分都是年齡二十到三十的年輕工人。

　 A. nearly 　 B. Almost

　 C. mostly 　 D. most

[答案及簡析] C。 mostly副詞"大部分"。

314] ______ the day on, the weather got worse.

[譯文] 隨著時間的一天天過去，氣候變得越來越糟。

　 A. With 　 B. Since

　 C. Which 　 D. As

[答案及簡析] A。 復(fù)合結(jié)構(gòu)，表示伴隨。

313] I’m pleased ______ should be done has already been done.

[譯文] 該做的已經(jīng)做完了，對此我感到滿意。

　 A. with what 　 B. that that

　 C. by that 　 D. that what

[答案及簡析] D。 that引導(dǎo)一個賓語從句，但不在從句中充當成分；what引導(dǎo)一個名詞性從句，在主句中充當主語同時在從句中充當賓語。

312] ----- Do you know our town at all?　　----- No, this is the first time I ______ here.

[譯文] --你了解我們城市嗎？　--不了解，這是我第一次到這兒。

　 A. was 　 B. have been

　 C. came 　 D. are coming

[答案及簡析] B。 It(this) is the …time that…. 在這個句型中從句要用完成時態(tài)。

311] More than one hundred got saved from the fire _____ helicopter.

[譯文] 被直升飛機從火中救出的人一百多。

　 A. in 　 B. with

　 C. by 　 D. from

[答案及簡析] C。 強調(diào)動作的發(fā)出者用介詞by。

310] ______ students in class 4 took park in that spring outing.

[譯文] 4班的所有48個學(xué)生都參加了郊游。

　 A. 48 all 　 B. 48 whole

　 C. All 48 　 D. The whole 48

[答案及簡析] C。 all是副詞，修飾名詞短語48 students。

309] You didn ’ t let me drive. If we _____ in turn, you ______ so tired.

[譯文] 你不讓我開車。如果我們輪流開車，你就不會這么累。

　 A. has left; comes 　 B. drove; wouldn’t have got

　 C. were driving; wouldn’t get 　 D. had driven; wouldn’t have got

[答案及簡析] D。 對過去發(fā)生的事的推測；用虛擬語氣。