Unit 4 Travel

　　A. the; the   B. the; a     C.\; the   D. the;\

　　此题考查冠词的用法，乐器名称前必须有冠词，球类名词前不用冠词。D

2. I don’t think ___________possible to master a foreign language without much memory work.

　　A. this     B. that      C/its        D. it

　　it在此句中充当的是形式宾语，to master…是不定式作真正宾语。该句还可以写成I don’t think it is possible to…，it在这个句子中就变成了形式主语。D

3. Three students in ten will go and ______ to stay in the classroom.

　　A. the rest are   B. the rest is     C. the other are       D. the other is

　　rest在作代词使用时可代替单、复数名词，其谓语动词与其所代的名词要求一致。the rest表示所有剩下的。因前边名词是学生，the rest指所有剩下的学生。所以选A。

4. What ______ to Joan last night. What did she cry for?

　　A. was happened   B. happened     C. was happening     D. had happened

　　happen是不及物动词，无被动语态，且时间状语表示的是过去，动词应用一般过去时，故选B。happen to sb．／sth．一般用来强调某事发生的偶然性，如果表示事先安排和有准备的事件，则用take place。happen和take place都不能用于被动语态。B

5. He wrote to his friends ______ information .

　　A. asked for   B. to ask for   C. ask for    D. asks for

　　此处的 write to sb．后需一非谓语动词作状语。给某人写信的几种表达方write sb. write to sb. write a letter to sb. write sb．a letter。此处只能选B。

6.---I’m going to the States.----How long ____you ____in the States?

　　A. are; strayed   B. are; staying  C. have; stayed   D. did; stay

　　stay为不及物动词，没有被动语态，故首先排除A。C和D时态不对。B项是以现在进行时表示将来时，可以这样用的动词还leave, arrive, go, come表示来去的动词等。