英语中考五例易错知识点解析

1. Mr Smith________,but now he doesn＇t.

A. is used to smoking B. was used to smoking

C. used to smoking D. used to smoke

分析：be used to中的“to”是介词，后面不能接动词原形，只能接名词或动名词，构成“be used to sth/doing sth”结构，意思是“习惯于某事或做某事”，时态的变化体现在动词be上面，而used to后接动词原形，表示“过去常做某事”隐含着与现在的对比，现在已发生变化，它只用于过去时态。

根据题意，A、C选项显然不对，B选项不合题意，所以正确答案是D。请比较：

(1) Jimmy is already used to getting up early.

(2) I used to drink a cup of coffee before I went to bed when I was in Australia.

2. ―It＇s very cold here in winter.

―________________.

A. So it is B. So is it

C. So it does D. So does it

分析：由So引导的句子常见的有两种：

一种是倒装句。

另一种是表示赞同或认可。

当上下两句所提到的情况相同，但所指的是不同的人或物时，用倒装句，其结构是“So+系动词/助动词/情态动词+主语”，译成“……也如此”如：

―Ann is hungry now.

― ________.

A. So he is B. So is he

C. So does he D. So he does

此题中答案选项中的he与上句的Ann显然不是同一个人，所以，正确答案是B。

当表示赞同上文提到的情况，且两句谈论的是同一个人或同一件事时，则用“So+代词+系动词/助动词/情态动词”。译成“是啊，对啊，的确如此。”

原题谈论的是同一件事――天气，故用第二种形式，而不是倒装句，所以，正确答案是A。

3. This book ________lucy＇s.Look,her name is on the cover.

A. must be B. may be

C. can＇t be D. mustn＇t be

分析：情态动词may(也许)、must(肯定)、can＇t(不可能)，而mustn＇t是禁止、不允许之意，无猜测的意思。所以，根据后句“她的名字写在书的封面上”判断,此句表示有把握的猜测，故用must.正确答案是A。

4. ________of them could work out this difficult maths problem. So they had to go to their teacher for help.

A. No B. No one C. None D. Everyone

分析：none一般与of短语(即后置定语)连用，构成none of sb/sth.既可以指人又可以指物，与of短语一起做主语。其谓语动词单、复数均可。而no one不能与of短语连用，其本身单独做主语。做主语时，谓语动词必须是单数。所以，B选项排除在外。又如：

(1) None of them has/have been to the USA.

(2) No one likes staying at home all day long.

选项A是形容词，也不能做主语，根据全句意思，前面应填入的是表否定意思的词。所以，D选项Everyone 也是错误答案，正确选项应是C。

5. 我希望你常给我写信。

I hope________write to meas often as possible.

分析:hope 后面通常接两种形式：一种是接不定式“hope to do sth”，另一种是接句子“hope+宾语从句”。

当表示“希望自己……”时用“hope to do sth”形式;当表示“希望他人……”时用“hope+宾语从句”。所以，此题答案应是(that)you will/you＇ll.又如：

(1) Cathy hoped to meet John at the station.

(2) Father hoped(that)I could buy him a present on his birthday.