B. effect

C. price

D. Market

【答案】B

【应试指导】本题考查固定搭配。句意：人们需要经过研究才能知道这种药物对这种疾病是否有影响。have effect on是固定搭配，表示“对…--有影响”。

11. A tall building has been set up in__________ was a wasteland before.

A. which

B. where

C. what

D. That

【答案】C

【应试指导】本题考查宾语从句。句意：以前曾是一个垃圾场的地方，现在已建起了一栋高楼。what was a wasteland before是一个宾语从句，作前面介词in的宾语，其中what作从句的主语。

12.I can' t find my notebook in the room. I__________ it in the library last night.

A. ought to have left

B. would have left

C. should have left

D. must have left

【答案】D

【应试指导】本题考查情态动词的用法。句意：我没有在房间里找到我的笔记本，一定是昨晚忘在图书馆了。由前一句可知，后一句是对过去的情况进行非常肯定的猜测，一般用“must have+过去分词”结构。

13.___________the end,the boy chose to go to Oberlin College.

A. At

B. By

C. In

D. On

【答案】C

【应试指导】本题考查介词辨析。句意：最后，那个男孩选择去上欧柏林大学。in the end为固定短语，表示“最后，终于”。

14. David won' t come to my wedding party______I send him an invitation.

A. when

B. unless

C. is

D. After

【答案】B

【应试指导】本题考查连词辨析。句意：除非我邀请大卫，否则他是不会来参加我的婚礼的。unless相当于if not，表示“除非，如果不”。

15. It was______beautiful weather that we spent the whole day in the park.

A. really

B. so

C. such

D. Very

【答案】C

【应试指导】本题考查so/such…that结构。句意：天气如此好，以至我们在公园玩了一整天。用于单数可数名词之前，其结构为“such+不定冠词+形容词+名词”或“so+形容词+不定冠词+名词”：用于可数名词复数或不可数名词前，只能用such。

16. At the foot of the hill,Jim_____his bicycle and began to push it.

A. got away

B. got off

C. got on

D. got up

【答案】B

【应试指导】本题考查短语辨析。句意：在山脚下，吉姆从自行车上下来，开始推车前行。getaway“离开，逃脱”;9et off“从……下来”;9et on“上车”;get up“起床”。故选B。 17. I like parents to come to school,__________I do not like them to go away with a misunderstanding. A. but

B. for

C. or

D. So

【答案】A

【应试指导】本题考查连词辨析。句意：我喜欢父母来学校，但是我不喜欢他们带着误解离开。由句意可知，后一分句表示转折，故but符合题意。

18.Alfredo left the house at 6 this morning,and we______him ever since.

A. wouldn' t see

B. didn' t see

C. haven' t seen