44.He is now accustomed to_________ early.

A. works B. working C. work D. worked (B)

be accustomed to doing 习惯于;

45.She had a hard time _________mathematics.

A. to study B. studies C. studing D. study (C)

have ….doing…. 主报考; have…..done 被报考;

46. The man tries to avoid _________his manager.

A. to meet B. meet C. to be meeting D. meeting (D)

见第42题;

47.The engineer demanded that Smith_________ with him.

A. go B. must to C. went D. will go (A)

见第28题;

48.The plants have stopped _________.

A. to grow B. to be growing C. for growing D. growing (D)

见第42题;

部分连接动词的区别：

○ try doing 意为“尝试”，重在做 ; try to do 意谓“企图”，重在想办法;

○regret doing 指对过去的行为懊悔; regret to do 指对现在的事情抱歉;

○cannot help doing 禁不住; cannot help to do 不能帮忙;

○propose doing 建议做; propose to do 打算做;

○stop smoking 戒烟; stop to smoke 停下来吹烟;

○go on doing 继续做同一件事;go on to do 接着做另一件事;

○remember doing 表已完成的; remember to do 表未完成的动作;

○forget doing 忘记已做了的事;forget to do 忘记要做的事;

○agree on doing 商量做某事; agree to do 同意做某事;

○be good at eating 会吃 it is good to eat 很好吃

○be afraid of dying 恐怕要死了(客观); be afraid to die 害怕得要死(主观);

○like doing (长期的) 爱好; like to do (一时的)兴趣;

○living 钟爱的;lovely 可爱的; likely 可能的;

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