1.Mark needs to learn Chinese________his company is opening a branch in Beijing.

A.unless B.until

C.although D.since

答案 D

解析 考查狀語從句——原因狀語從句。根據題意，前后之間為因果關系，因為要開分公司，所以需要學習漢語。答案選D。

2.He is so busy.He cannot afford enough time with his son________he wants to.

A.even if B.as if

C.because D.before

答案 A

3.You must learn to consult your feelings and your reason________you reach any decision.

A.although B.before

C.because D.unless

答案 B

解析 考查狀語從句引導詞的辨析。句意為：你必須學會在做任何決定之前都考慮兼顧好情感與理智。根據常識可知在做決定之前應該三思，而兼顧好情感與理智是行事的前提。

4.I have heard a lot of good things about you ________ I came back from abroad.

A.since B.until

C.before D.when

答案 A

解析 句意為：自從我回國以來，聽到了你的很多好消息。since自從……以來(至今)，與主句現在完成時匹配。

5.I took my driving license with me on holiday，________I wanted to hire a car.

A.in case B.even if

C.ever since D.if only

答案 A

解析 考查狀語從句引導詞的辨析。句意為：我隨身帶了駕照去度假，以備我租車用。in case萬一，以防;even if即使;ever since自從……以來;if only要是……就好了。故選A項。

6.One can always manage to do more things，no matter________full one’s schedule is in life.

A.how B.what

C.when D.where

答案 A

7.Don’t turn off the computer before closing all programs，________ you could have problems.

A.or B.and

C.but D.so

答案 A

解析 考查連詞用法。句意為：關閉所有程序后再關電腦，否則會有麻煩的。or否則，要不然，用于警告或忠告。

8.She says that she’ll have to close the shop ________ business improves.

A.if B.unless

C.after D.when答案 B

解析 本題考查狀語從句的引導詞。句意為：她說，除非生意好轉，否則她只能關掉店鋪。if如果;unless除非，如果不……;after在……之后;when當……的時候。根據句意，B項符合題意。

9.I was glad to meet Jenny again，________ I didn’t want to spend all day with her.

A.but B.and

C.so D.or

答案 A

10.He smiled politely ________ Mary apologized for her drunken friends.

A.as B.if

C.unless D.though

答案 A

解析 句意為：當瑪麗因她醉酒的朋友向他道歉時，他禮貌地微笑著。if如果，引導條件狀語從句;unless除非，引導條件狀語從句;though雖然，盡管，引導讓步狀語從句。as可引導時間狀語從句，表示主從句動作同時發(fā)生或前后緊接著發(fā)生，常常譯為“(正當)……的時候，隨著……，一邊……一邊……”，故只有as符合題意。

11.It’s not easy to change habits，________ with awareness and self­control，it is possible.

A.for B.or

C.but D.so

答案 C

解析 考查連詞。句意為：改變習慣不容易，但是如果有了想改變的意識和自控力，(改變習慣)也是可能的。前后句之間為轉折關系，故選C項。

12.I don’t believe we’ve met before，________I must say you do look familiar.

A.therefore B.although

C.since D.unless

答案 B

解析 “我認為我們以前沒有見過面”，正常情況下下文應該是看上去不面熟，但本題中下文說看上去面熟，由此可以看出應選B項，although引導讓步狀語從句。句意為：我相信我們以前沒有見過面，不過我必須說你看上去的確很面熟。