作业帮英语翻译3.他昨天做实验了.否定句、一般疑问句、两答）4.他下周要做实验了.否定句、一般疑问句、两答）
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英语翻译3.他昨天做实验了.否定句、一般疑问句、两答）4.他下周要做实验了.否定句、一般疑问句、两答）
英语翻译
3.他昨天做实验了.否定句、一般疑问句、两答）
4.他下周要做实验了.否定句、一般疑问句、两答）
英语翻译3.他昨天做实验了.否定句、一般疑问句、两答）4.他下周要做实验了.否定句、一般疑问句、两答）
1)He does experiments every week.
否定句：He doesnot do experiments every week.
一般疑问句：Does he do experiments every week?Yes,he does./ No,he does not.
2)He is doing an experiment now.
否定句：He isnot doing an experiment now.
一般疑问句：Is he doing an experiment now?Yes,he is./ No,he is not.
3）He did experiments yesterday.
否定句：He didn't do experiments yesterday.
一般疑问句：Did he do experiments yesterday?Yes,he did./ No,he didn't
4)He will do experiments next week.
否定句：He will not do experiments next week.
一般疑问句：Will he do experiments next week.Yes,he will./ No,he will not.
做这样的题目,首先要判定时态：
一般现在时,1、如果有系动词（am/is/are）否定句直接在系动词后加not,一般疑问句的话就直接提前系动词；2、若没有,第一、二人称借助动词do后面加not,再加动词原形,一般疑问句也是借助动词提前,do+主语+谓语（动词原形）+宾语；若是第三人称用Does;
现在进行时,be +doing,否定句直接在系动词后加not,疑问句提前be动词
一般过去时,借助助动词did not+动词原形,一般疑问句did+主语+动词原形+宾语
一般将来时,直接在will 后面加not构成否定句,一般疑问句将will提前
He did the experiment yesterday, didn't he?
He will do the experiment next week, won;t he?
he did experiment yesterday.
he didn't do experiment yesterday.
did he do experiment yesterday? --yes, he did. --No, he didn't
he will do experiment next week.
he will not do experiment next week.
will he do experimant next week. --yes, he will. --No, he will not.
he did experiment yesterday.
he didn't do experiment yesterday.
did he do experiment yesterday? --yes, he did. --No, he didn't