请再看两题：
(1) “How long have you worked on the farm?” “____ the end of last year.”
A. In B. By
C. At D. Since
答案选D，用 since the end of last year 回答 how long，即问句问“工作了多久”，答句说“自去年年底至今”。
(2) “How long will you work on the farm?” “____ the end of next year.”
A. In B. By
C. At D. Since
答案选B，问句问“将工作多久”，答句说“工作明年明底”。
(3) “When did you leave the farm?” “____ the end of last year.”
A. In B. By
C. At D. Since
答案选C，问句问“何时离开”，答句说“去年明底离开”。
5. Don’t be angry _______ me for not having written. I was really too busy.
A. about B. with
C. to D. for
【陷阱】容易误选B。根据汉语的“对某人生气”，将其中的“对”直译为to。
【分析】最佳答案为 B。按英语习惯，要表示对某人生气，通常用 be angry with [at] sb，要表示对某事生气，通常用 be angry at [about] sth(在美国英语中也用 be angry with sth，但不说 be angry with sb)。比较以下表达，其中的“对”也不用to来翻译：
你对这些安排感到满意吗?
误：Did you feel satisfied to the arrangements?
正：Did you feel satisfied with the arrangements?
老师应该对他的学生严格要求。
误：Teachers should be strict to their students.
正：Teachers should be strict with their students.
6. In those days, we had no phones, so we have to keep in touch _____ writing often.
A. with B. of
C. on D. by
【陷阱】容易误选A。根据 keep in touch with (与……保持联系)这一常用搭配推出。
【分析】正确答案是D。by 在这里表示方式，by writing 意为“通过写信”，全句意为“我们通过经常写信保持联系”。请再看几例(均与介词搭配有关)：
(1) We’ve talked a lot _______ films. How _____ television now?
A. of, with B. with, towards
C. about, about D. for, about
此题不要受 a lot of的影响而误选A。若第一空选 of，a lot of cars 即为动词 talk 的宾语，但实际上动词 talk 是不及物动词，不能后接宾语。最佳答案应是C，句中的a lot是修饰动词 talked 的状语，talk about才是一个动词短语。 全句意为“我们对电影已谈了不少，现在谈谈电视怎么样?” What about…意为“……怎么样”，用于征求意见。
(2) We all regarded the poor old man ____sympathy.(www.hxen.com)
A. as B. with
C. of D. by
有的同学一看到句中的 regard 和选项中的 as，马上就联想到 regard … as … (把……当作……)这一搭配，从而断定此题应选A。但是错了，原因是将此搭配套入原句，句子意思不通。正确答案是B，句意为“我们大家都很同情这位老人”。
◆最新原创陷阱题（附详解）◆
1. So far, several ships have been reported missing _______ the coast of Bermuda
A. off B. along
C. on D. around
2. “How long have you stayed in this hotel?” “Not long, just ______ this Monday.”
A. on B. since
C. until D. after
3. The lift in that tall building went wrong and got trapped _____ floors. People in it had no way to get out.
A. in B. between
C. among D. on