将下列句子变为疑问句和否定句:

1. She does her homework every night.

疑问句:

否定句:

2. There are many people in the supermarket.

疑问句:

否定句:

4. He has two mobile phones.

疑问句:

否定句:

5. They are busy with their tests.

疑问句:

否定句:

6. The teacher is drawing a picture on the blackboard.

疑问句:

否定句:

7. She has returned the book.

疑问句:

否定句:

8. Julian made some mistakes in his homework.

疑问句:

否定句:

9. Leo often makes some friends on the APP.

疑问句:

否定句:

10.She has arrived already.

疑问句:

否定句:

将下列句子翻译成中文):

11.Amy昨天去看电影了吗?

译文:

12.Sara不在一中读书。

译文:



疑问句变法总则:疑问句就是把助动词倒装到主语前面(核心词:助动词)。

疑问句中助动词使用原则:当该句子中有助动词时,直接将该助动词倒到主语前;当该句子的结构中没有助动词时,须加万能助动词do/does/did。

否定句变法总则:否定句就是在助动词后加not(核心词:助动词)。

否定句中助动词使用原则:当该句子中有助动词时,直接在该助动词后加not;当该句子的结构中没有助动词时,须加万能助动词do/does/did,再加not。


1. She does her homework every night.

疑问句:Does she do her homework every night?

否定句:She does not do her homework every night.

解析:句中的does表“做”,是实义动词而不是助动词。根据上述原则,句子中没有助词时,要表疑问,须加“万能”助动词Does并置于主语之前(加的助动词Does表示第三人称单词后,原先的实义动词does得还原)。要表否定,须加“万能”助动词does,并在助动词does后加not(加的助动词Does表示第三人称单词后,原先的实义动词does得还原)。

2. There are many people in the supermarket.

疑问句:Are there many people in the supermarket?

否定句:There are not many people in the supermarket.

解析:句中有助动词are,根据上述原则,表疑问时,只须将助动词are倒装到主语前。表否定时,只须在助动词are后加not。

3. He has two mobile phones.

疑问句:Does he have two mobile phones?

否定句:He does not have two mobile phones.

解析:句中的has表“有”,是实义动词而不是助动词(只有完成时中的have/has/had才是助动词)。根据上述原则,句子中没有助词时,要表疑问,须加“万能”助动词Does并置于主语之前(加的助动词Does用第三人称单词后,原先的实义动词does得还原)。要表否定,须加“万能”助动词does,并在助动词does后加not(加的助动词does用第三人称单词后,原先的实义动词does得还原)。

5. They are busy with their tests.

疑问句: Are they busy with their tests?

否定句: They are not busy with their tests.

解析:句中有助动词are。根据上述原则,表疑问时,只须将助动词are倒装到主语前。表否定时,只须在助动词are后加not。

6. The teacher is drawing a picture on the blackboard.

疑问句:Is the teacher drawing a picture on the blackboard?

否定句:The teacher is not drawing a picture on the blackboard.

解析:句中有助动词is。根据上述原则,表疑问时,只须将助动词Is倒装到主语前。表否定时,只须在助动词is后加not。

7. She has returned the book.

疑问句:Has she returned the book?

否定句:She has not returned the book.

解析:“have/has/had+动词过去分词”是完成时结构,其中的“have/has/had”无义,为助动词。根据上述原则,表疑问时,只须将助动词has倒装到主语前。表否定时,只须在助动词has后加not。

8. Julian made some mistakes in his homework.

疑问句: Did Julian make any mistakes in his homework?

否定句: Julian didn't made any mistakes in his homework.

解析:句中没有助动词。根据上述原则,句子中没有助词时,要表疑问,须加“万能”助动词Did(谓语动词用了过去式表示事情发生在过去,所以要用万能助动词的过去式did),并置于主语之前(加的助动词Did表示过去后,原先的过去式made须用原形)。要表否定,须加“万能”助动词did,并在助动词did后加not(加的助动词did表示过去后,原先的过去式made须用原形)。

另外,一般情况下,some用在肯定句中,any用在否定句和疑问句中。因此,在变为疑问和否定句后,须将some改为any。

9. Leo often makes some friends on the APP.

疑问句:Does Leo often make any friends on the APP?

否定句:Leo doesn't often make any friends on the APP.

解析:句中没有助动词。根据上述原则,句子中没有助词时,要表疑问,须加“万能”助动词Does(因为主语为第三人称单数,得用万能助动词的第三人称单数形式does),并置于主语之前(加的助动词Did表示过去后,原先的过去式made须用原形)。要表否定,须加“万能”助动词did,并在助动词did后加not(加的助动词did表示过去后,原先的过去式made须用原形)。

另外,一般情况下,some用在肯定句中,any用在否定句和疑问句中。因此,在变为疑问和否定句后,须将some改为any。

10.She has arrived already.

疑问句:Has she arrived yet?

否定句:She hasn't arrived yet.

解析:“have/has/had+动词过去分词”是完成时结构,其中的“have/has/had”无义,为助动词。根据上述原则,表疑问时,只须将助动词has倒装到主语前。表否定时,只须在助动词has后加not。

另外,一般情况下,some用在肯定句中,any用在否定句和疑问句中。因此,在变为疑问和否定句后,须将some改为any。

将下列句子翻译成中文):

11.Amy昨天去看电影了吗?

译文:Did Amy go to the cinema yesterday?

解析:除非平时学习中通过书本或其它学习途径习得的非常熟悉的句子可脱口而出外,不太熟悉的句子我们得分析句子的结构,无论在跟老外口语交流时还是写作中,句子结构分析都能帮上大忙。

通过分析,句子时态为过去一般时,结构为:主语+谓语动词过去式+。。。,句子的主语是Amy,谓语动词是go。由此可以看出句子结构中不存在助动词,在表示疑问时,得在主语前加“万能”助动词Did。

12.Sara不在一中读书。

译文:Sara does not study in No.1 Middle School.

解析:通过分析,句子时态为现在一般时,结构为:主语+谓语动词一般式+。。。,句子的主语是Sara,谓语动词是study。由此可以看出句子结构中没有助动词,在表示否定时,得加“万能”助动词does再加not。

13.猫在树上吗?

译文:Is the cat in the tree?

解析:通过分析,句子时态为现在一般时,结构为:主语+谓语动词一般式+。。。,句子的主语是the cat,谓语部分为介词短语in the tree。句子中没有谓语动词,须用“be短语结构”。由于有了助动词be,表示疑问时,将be动词is倒装到主语前即可

语法专项练习九 疑问句和否定句