含有情态动词的被动语态知识点

情态动词的被动语态结构为：情态动词+be+过去分词；其时态及句型的变化仅由情态动词完成，“be+过去分词”部分不变。 Tables can be made of stone. 桌子可由石头制造。

含有情态动词的被动语态知识点题库

—I don't think sixteen-year-olds _______ to drive.

—I agree. They aren't serious enough at that age. （）

A . can allow B . need be allowed C . should allow D . should be allowed

Don't put off today's work for tomorrow. I mean, today's work______ today.

A . may do B . must do C . may be done D . must be done

——Some of the plastic bags can't ______ after June1.
——Yes, people will use environmental bags instead.

A . use B . be use C . be used D . are used

The environment in our hometown is getting worse and worse. So many trees .

A . are planting B . should be planted C . should plant

—Tom is always careless with his schoolwork．Could you help him？

—No problem！I think he _______ to think twice before starting．

A . should be told B . can tell C . should tell D . can be telling

Teenagers allowed to drive .

A . should not be B . should be not C . not should be

Short-term memory can hold about seven item of information at a time. （改为被动语态）

About seven item of information can at a time by short-term memory.

Waste paper should here.It makes a mess.

A . be thrown B . not be thrown C . is thrown D . throw

Teenagers should （教育）to keep away from danger.

My grandmother is ill. The doctor must (send) for at once

The famous writer was absent from the seminar. He __________ from coming for some reason.

A . would be prevented B . might have been prevented C . have been prevented D . might have prevented

Teenagers should be (encourage) to solve their problems by themselves.

Many more trees should (plant) this year.

—We __________ be allowed __________ computer games for the homework hasn't been done.

—I suppose so. You know how strict our parents are!

A . must; playing B . might; to play C . can't; to play

— Must colours ______ to the cartoon, Mr. White?

— Yes, they ______.

A . add; must B . add; mustn't C . be added; must D . be added; mustn't

—Food safety is very important.

—So some rules__________ to stop people from polluting food.

A . must make B . must be made C . must made D . be made

We may put the flowers in the classroom.（改为被动语态）

The flowers may in the classroom.

A lot of things can be r, such as china cups and lunch boxes.

旧书不应该被扔掉。或许它们在你以后的生活中是有用的。

Old books shouldn't be . Maybe they are useful in your later life.

People come from all over to our village to see views that cannot _______ anywhere else.

A . enjoy B . be enjoyed C . are enjoyed D . be enjoying