1. Although, the professor was quite used ____ last for his lecture.

　　A)to have students B)for students’ being

　　C)for students to be D)to students’ being

答案解析：D。本题测试固定词组搭配。本题主语为“be used to+名词或动名词”结构，表示“很习惯于……”。故D项正确。students’放在being前作逻辑主语。

　　2.The mad man was put in the soft?padded cell lest he ____ himself.

　　A)injure B)had injured C)injured D)would injure

答案解析：A．本题测试“lest”用法。用lest连接的句子谓语部分用should加原形动词，should可省略，故A正确。

　　3. If tap water were as dangerous as some people think,____ would be getting sick.

　　A)a lot of more us B)more a lot of us

　　C)a lot of us some D)a lot more of us

答案解析：D比较级的修饰词用法。a lot修饰比较级时应置前，故选D。

　　4. The car ____ halfway for no reason.

　　A)broke off B)broke down C)broke up D)broke out

答案解析：B本题测试动词短语辨析。四个词组的意思分别为：A.broke off折断，突然停止讲；B.broke down抛锚，坏了；C.broke up拆散，驱散(人群)；D.broke out(瘟疫，疾病，战争等)爆发。

　　5.The newcomers found it impossible to ____ themselves to the climate sufficiently to make permanent homes in the new country.

　　A)suit B)adapt C)regulate D)coordinate

答案解析：B 本题测试动词短语的习惯搭配。“adapt eneself to”构成固定词组，表示“ 使某人适应(新的环境，气候，国土等)”，符合句意。