Lesson 80 I must go to the … 我必须去

Exercise B

Have you got any cheese? (grocer's)

I need">need a lot of cheese. I haven't got much.

I must go to the grocer's to get some cheese.

Has he got any envelopes? (newsagent's)

He need">need a lot of envelopes. He hasn't got many.

He must go to the newsagent's to get some envelopes.

Lesson 79 Carol's shopping list

need

needn't 实义动词/情态动词

need 做实义动词时，可以加s/ed

needs/needed

need 做情态动词时，没有时态，人称，数格的变化，可以直接加否定形式。不能单独做谓语，后边加动词原形。

1 need + to + 动词原形 -> need 是实义动词

2 need + 动词原形 -> need 是情态动词

I want an apple.

The children need milk.

加 do/ don't 构成否定或疑问形式。

The children don't need milk.

Do the children need milk?

What do the children need?

What do you need?

What does the girl need?

What do we need?

We need a lot of things.

She needs a house.

She doesn't need a house.

Does she need a house?

What does she need?

1 在肯定句中，need不可以象 I can go home.中的can的用法一样在肯定句中直接做情态动词，而是做实义动词。