北师大版高中英语北必修四：随堂演练10-5(含答案)

随堂演练
及时体验巩固提升Ⅰ.单句语法填空(不多于3个单词)
1．Go on ________ (do) the other exercise after you have finished this one.
答案与解析to do go on的后面用不定式表示“继续做另外一件事情”。

2．She pretended ________ (not see) me when I passed by.
答案与解析not to see pretend的后面要接动词不定式做宾语。

本空的不定式用否定形式，其否定形式则是在不定式符号to的前面加not。

3．She reached the top of the hill and stopped ________ (rest) on a big rock by the side of the path.
答案与解析to rest stop后接不定式，表示停下来去做另外一件事。

stop to rest表示“停下来休息”。

4．John was made ________ (wash) the truck for a week as a punishment.
答案与解析to wash make用于被动语态时，其后通常用带to 的不定式做其主语补足语。

5．I saw him ________ (enter) the classroom just now, but I can't find him here. It's strange.
答案与解析enter动词see的宾语补足语通常用省略了to的动词不定式，即see sb. do sth.表示宾语发出的动作，而且表示动作的整个过程。

6．My friend ran all the way ________ (catch) up with his classmates.
答案与解析to catch不定式常在句中做目的状语。

7．Don't let your pet dog ________ (bark) at deep night.
答案与解析bark本题中的动词let的宾语补足语要用不带to 的不定式。

8．Just stay here. I'll get more people ________ (help) you out.
答案与解析to help动词get的宾补通常要用带to的不定式。

get sb. to do sth.意为“叫/使/某人做某事”。

9．It's very important for all of us students ________ (learn) our lessons well.
答案与解析to learn“It is＋形容词＋不定式”是一个常用的句型，意为“某人做某事是……的”。

句中的不定式在整个句子中做真正的主语，前面的it则是一个形式主语。

10．To see is ________ (believe)．
答案与解析to believe句子的主语是不定式时，如果句子中的动词是be动词，则后面的表语通常用不定式。

11．Today will be a busy day because I have a lot of work ________ (do)．
答案与解析to do不定式作定语时，既可以与其所修饰的名词或代词构成逻辑上的主谓关系，也可以与其所修饰的名词或代词构成逻辑上的动宾关系。

当不定式的逻辑主语是句子的主语或谓语动词的宾语时，不定式应使用主动形式。

12．I really don't know ________ to stay or to leave.
答案与解析whether与不定式连用，并且要表达“是否”之意时，只能用whether，不能用if。

13．I've worked with children before, so I know what ________ (expect) in my new job.
答案与解析to expect动词不定式作tell, show, know, decide, learn, teach, discuss等动词的宾语时，不定式前面可以带疑问代词、疑问副词或连词whether等，即：who, whom，what, which, when, where, why, how, whether等＋to do。

14．________ (see) Joseph off at the airport, Sally finished her work earlier.
答案与解析To see Sally早点完成工作的目的是为了到机场去送Joseph，用不定式表示目的。

15．Please find a room for us to stay________ this evening.
答案与解析in当不及物动词的不定式形式作定语，且该不定式与其所修饰的名词或代词构成逻辑上的动宾关系时，其后需使用必要的介词。

例如：a river to swim in, a person to laugh at, nothing to worry about, a chair to sit in, a hotel to stay at, a pen to write with等。

16．It is nice ________ you to help me with my English.
答案与解析of不定式的逻辑主语既可以用for sb.也可以用of sb.来表示。

当形容词强调人的品质、特点时，要用of sb.。

常见的这类形容词有：kind, nice, good, bad, polite, rude, wrong, right, clever, careless等。

17．Tom kept quiet about the accident so as not________ (lose) his job.
答案与解析to lose so as to do或in order to do在句中作目的状语，其否定形式为so as not to do和in order not to do。

18．— Was the work difficult?
— Not at all. It was easy ________ (do)．
答案与解析to do动词不定式跟在某一形容词后作状语，且这个形容词用来说明主语的性质、品质、特征等时，不定式通常使用一
般式，而不使用被动式。

19．When I went in, he pretended ________(read) a newspaper.
答案与解析to be reading动词pretend后跟不定式作宾语，本题意思是“我进来时，他假装正在看报纸”，所以要用不定式的进行式。

20．Do let your mother know all the truth. She appears to ________ (tell) everything.
答案与解析have been told“母亲好像已经被告知了一切”发生在“要让母亲知道真相之前”，故用不定式的完成被动式。

Ⅱ.用不定式改写下列句子
1．I find that it is difficult to speak English well.
→I find ________ ________ ________ ________ English well.
答案it difficult to speak
2．The boy got up earlier so that he might not be late again.
→The boy got up earlier ________ ________ ________ ________ ________ late again.
答案in order not to be
3．It seemed they were writing something for somebody.
→They seemed ________ ________ ________ something for somebody.
答案to be writing
4．It happened that they had known each other before.
→They happened ________ ________ ________ each other before.
答案to have known
5．Jim doesn't know how he can improve his Chinese.
→Jim doesn't know ________ ________ ________ his Chinese.
答案how to improve
6．The progress which will be made soon is of great importance.
→The progress ________ ________ ________ soon is very important.
答案to be made。