[1] The research is so designed that once ______ nothing can be done to change it.
A. begins B. having begun
C. beginning D. begun
[答案] D。 once begun是once引导的条件状语从句的省略形式。= Once it is begun
[2] One way to understand thousands of new words is to gain _____ good knowledge of basic word formation.
A. / B. the
C. a D. one
[答案] C。 have / gain a knowledge of 是一个固定搭配，"掌握"的意思。
[3] Luckily, the bullet narrow missed the captain ______ an inch.
A. by B. at
C. to D. from
[答案] A。 by an inch 相隔一英寸。固定表达法。
[4] I feel it is your husband who _____ for the spoiled child.
A. is to blame B. is going to blame
C. is to be blamed D. should blame
[答案] A。 责备，抱怨某人，用主动形式不用被动。Sb. is to blame for sth.
[5] Mrs. Black doesn’t believe her son is able to design a digital camera, ________?
A. is he B. isn’t he
C. doesn’t she D. does she
[答案] D。 复合句的反意疑问句的附加疑问部分一般说来与主句一致。
[6] We thought of selling this old furniture, but we’ve decided to _____ it. It might be valuable.
A. hold on to B. keep up with
C. turn to D. look after
[答案] A。 hold on to保留;keep up with保持联系;turn to求助于;look after照料。
[7] There is a feeling _____ me______ we’ll never know what a UFO is --- not ever.
A. in; that B. on; which
C. for; for which D. by; what
[答案] A。 在某人身上介词用in;此句中有一个同位语从句。
[8] Perseverance is a kind of quality--- and that is _____ it takes to do anything well.
A. what B. that
C. which D. why
[答案] A。 此句是it take sth. to do sth.句型。perseverance做take的宾语。
[9] He was about to tell me the secret_____ someone patted him on the shoulder.
A. as B. until
C. while D. when
[答案] D。 在主句是be about to do sth.的情况下，从句用when引导。
[10] _____ to sunlight for too much time will do harm to one’s skin.
A. Exposed B. having exposed
C. Being exposed D. After being exposed
[答案] C。 动名词短语做主语，用系表结构表示状态。
[11] _____ she was afraid at that time, she would say no to the plan.
A. But for B. If
C. But that D. When
[答案] C。 but that "要不是"，引导一个从句。
[12] --What’s the matter? You really look down. -- _______. --Well, better luck next time.
A. Why, I always look up to you B. I failed an important test
C. I have a bad cold D. Me? I never look down upon anybody
[答案] B。 look down意为"情绪低落"，下句"望你下一次走好运"与"考试不及格"相吻合。
[13] So loudly_______ that everyone of the class could hear him.
A. did he speak B. did he spoke
C. spoke he D. he spoke
[答案] A。 "So+形容词"，"So+副词"放于句首时，构成倒装句，句中要加助动词。
[14] --May I have a talk with one of your sports reporters? --Sorry, but all of them are out to______the main events of the day.
A. get B. find
C. cover D. search
[答案] C。 get the information得到信息，find找到，cover the events采访事件，search the house搜查这所房子。
[15] --Did you write to Mary last month? --No, but I’ll_______her over Christmas Day.
A. be seen B. be seeing
C. have seen D. have been seeing
[答案] B。 将来进行时will/shall be doing sth.。可用于表达预计即将发生或势必要发生的动作，在一般情况下可和一般将来时换用，用将来进行时则显得更加委婉。
