Question

请给位为我解答一下英语题吧！谢谢了

1.Jerry has to work hard to feed his large family(改为否定句）
Jerry ____ _____ to work hard to feed his large family
2.Henry put on his scarf before he left the coffee（改为否定句）
Henry _____ _____ on his scarf before he left the coffee
3.Unless you clean your teeth requlary,you will get toothache.(同义句）
_____ you ____ clean your teeth regulary.you will get toothache.
4.We must put this warning sign outside the gate of the museum.（改为被动语态）
This warning sign must_____ ______ outside the gate of the museum.
5.Two pandas from China will stay in a British 200 for ten years.(对划线部分提问划线部分是for ten years）
______ ______ will two pandas from China stay in a British zoo?
6.Fresh water is limited（有限的).We can't waste in any more.（合并为一句）
Fresh water is______limited___ we can't waste it any more
7.Work harder,or you'll not succeed in you new job.（同义句）
______ ______work harder,you'll not stayed in your new job
8.Young people can learn a lot by keeping a net dog（对划线部分提问划线部分为by keeping a net dog）
最好讲下理由！谢谢

Answer 1

1.has not （has是助动词，否定都放在后面 否定都用not）
2.didn‘t put （此句前面为一般过去式，在否定上采用助动词，但是助动词后面跟动词原形）
3.if...don’t （if...not是如果。。不。。的意思 但是clean为动词 主语和谓语之间必须有连接 所以采用助动词do 最终答案即if。。。don‘t）
4.be put （此句主要考察must的被动形式，must为助动词，在变为被动语态的时候必须 后面加动词原形 用be填充 后面的put是分词形式 即原形）
5.How long （划线部分是对实践的提问，所以用how long 固定形式）
6.so.....that......（那么。。。。因此。。。 固定搭配）
7.Unless you （除非..... 一句话双层否定表示肯定）
8.how can young people learn a lot ?（by后面一般都是工具 如by car 是一种方式 所以对方是的提问就应该用how）

Answer 2

更正楼上答案如下，保证准确！

1. doesn't have
have/has/had to 的否定形式必须借助于助动词do/does/did来变化
2. didn't put
put是动词put的过去式，所以其否定用didn't put
3. If, don't
unless = if...not...，意思是“如果不，除非”
4. be put
含有情态动词的被动结构为：情态动词 + be + 动词过去分词
5. How long
How long意思是“多久”，用于对一段时间提问
6. so, that
so...that...是固定句型，意思是“如此...以至于...”
7. Unless you
unless you work harder = If you don't work harder 如果你不更加努力工作/学习
8. How can young people learn a lot?
by keeping a net dog意思是“通过养宠物狗的方法”，做方式状语，对其提问当然用how，意思是“怎么样”。

如果你满意我的答案，敬请点击“选为满意回答”，谢谢！

Answer 3

1.need not 2.didn't put 3.If don't 4.must be 5.How long 6.so that 7.Unless you 8.By keeping a net dog, can young people learn a lot ?

Answer 4

has not
not put