几个初中英语问题

1. ought to 是“应该”的意思，大部分情况就相当于“should”
We should／ought to help each other and learn from each other in our work．
be allowed to.. 是“被允许...”
He is allowed to watch TV after finishing his homework. 他被允许在完成作业后看电视。

2. how to do 是“怎样做”的意思； what to do 是“做什么”的意思
I want to know how to learn English well. (我想知道怎么样能学好英语)
Now I don't know what to do. （现在我不知道该做些什么）

3. a number of 是“一些..”的意思 谓语动词用复数
the number of 是“...的数量”的意思 谓语动词用单数
A number of studernts are often late for school. 一些学生经常上学迟到。
The number of student in Class 1 is 45. 一班的学生数量是45

加油，好好学习！！！

ought

情态动词 aux. 应该；应当
should,must (showing that it is your duty to do something)
· As a Party member,you ought to give the lead.
作为党员，你应当带头。
· This work ought to be done at once.
这项工作应当马上就做。
· We ought to be hearing from them soon,then.
这么说，我们大概不久就可以接到他们的信了。
· You ought to have told me you were coming.
你该告诉我你要来才是。
· There ought to be something wrong with the bus.
这辆公共汽车一定出毛病了。
· You ought not to do it.
你不应该做这事。
· Ought he to start now?Yes ,he ought.
他现在该动身了吗？该动身了。
· They ought to go now,oughtn't they?
他们现在该走了，对吗？

情态动词 aux. 该会；理应
words that show what you think will happen
· Bruce is the fastest runner,so he ought to win the race.
布鲁斯跑得最快，所以他该会赢得这场赛跑的。
· He said he ought to write an article about it.
他说他该为这写一篇文章。

may

名词 n. (May)五月
the fifth month of the year
· I saw him sometime in May.
我曾在五月里某个时候见到过他。
· May Day is a great international holiday.
“五一”是国际性的伟大节日。
· The May 4 Movement took place in Beijing in 1919.
五四运动发生在1919年，北京。

情态动词 aux. 可以，允许
have permission to,be allowed to
· Dogs may not be taken into the park without a lead.
没有皮带牵着的狗不得带入公园。
· He asked if he might go.
他问是否可以走
· May I ask you a question?
我可以问你一个问题吗？
· "May we go to the cinema please?""Yes,you may."
“我们可以看电影吗？”“可以。”
· "May we have the television on?" "Yes,you may."
“我们可以开电视吗？”“可以。”

情态动词 aux. 也许，可能
work that shows what will perhaps happen
· It may rain today.
今天可能下雨。
· Xiao Yang may know his address.
小杨可能知道他的地址。
· He may come,or he may not.
他可能来，也可能不来。
· The bus may be late.
公共汽车也许晚点。
· It may be a good report,but it seems to lack facts.
这或许是个好报告，但事实似乎不充分。
· I may pass in seven subjects.
我七门科目可以及格。
· You may have read about it in the papers.
你可能在报上已经看到这个消息了。
· She may still be waiting for us.
她可能还在等我们。
· You might have helped me when I asked you.
当我求你帮忙时，你本来就可以帮我的。
· Let's hurry up so that we may finish the work in time.
咱们快一点，好及时完成任务。

情态动词 aux. 祝；愿
hope that his will happen:
· May you live happily!
祝您生活愉快！
· May you be happy!
祝你幸福！
· May you have a safe journey.
祝你一路平安。

ought to 是应该的意思 be allowed to是被允许做某事
how to do是怎样做某事 what to do是做什么事
a number of 是大量的 the number of是某物的数量

a number of 与the number of的区别
a number of 强调的是of后面的部分
the number of强调的是of前面的部分，既number

a number of 的意思是“许多”，作主语时谓语动词用复数
the number of的意思是“....的数量”，做主语时谓语动词用单数

ought to指应该 ； be allowed to 是被允许…… 被动句中，动词后加to
句中有 it 时，用 how to do 、否则用what to do
a number of 是 许多，后加可数名词的复数；the number of 是 ……的数目，后加不可数名词