文档介绍：headache
She/He has a headache.
I have a headache.
She has a bad cold.
She has a toothache.
have an earache
haews every evening.
4. You ___________ unhappy!
5. All the children are ___________ the teacher now.
look
watch
see
look at
look at
see
watches
look
looking at
must （动词）必须
It's time to go to school, you must go now.
She must be tired.
We must study hard for our country.
、命令或必要
2. 表示推断
Jimmy, you must stay in bed for three months.
need （动词）需要
I need to water the flower.
Fishes need water.
need to do
need sth. 需要某事
must 和 need 区别
1. must的意思是必须，表示主观身上的命令，以及推断
表示客观需要
：
Must I stay here?我必须得待到这儿吗？
No, you needn't. 不，你不必。
You must go home right now, mustn't you?/needn't you? 你现在必须得回家，不是吗？
4. 否定句：
I mustn't go there. 我不用去那儿
He needn't to go there. 他不需要去那儿
情态动词must，can’t，may 表示可能性的区别：
must 一定…… 用于肯定句中，表示可能性最大，
例如：The light is on, she must be at home now. 灯亮着，她现在一定在家。
can’t 不可能…… 用于否定句中，表示可能性最大，
例如：That girl can’t be Kate, I saw her in the shop just now.
那个女孩儿不可能是Kate，我刚刚看见她在商店里。
may 可能…… 由于肯定句中，表示可能性最小，
例如：He may come here today, I’m not sure.
他今天有可能来这里，我不是很确定。
may can’t must
1. —Who’s that? —That ___________ be Jim, but I’m not sure.
2. That textbook ___________ be David’s, because his name is on it.
3. You ___________ be very tired after so much hard work.
4. —Where’s my key? —It ___________ be in your handbag.
5. You ___________ know her name, because she is our new student.
may
must
must
may
can’t
cold
扩展知识：反义词：hot 热的
俚语：I have cold feet. 我很紧张。
cold n. 感冒 have a cold 患感冒
例如：Do you have a cold? 你感冒了吗？
remember sth. 记得…
remember to do sth. 记得要做某事
remember doing sth. 记得做过某事
remember
我记得我跳舞了
I remembered dancing.
"Xiao xin, remember to eat lunch!"
bad ，严重的
固定搭配：be bad for 对……有坏处
例如：Watching TV too much is bad for your eyes. 看太多电视对你的眼睛有坏处。
扩展知识：反义词：good 好的
副词： badly 坏地
news ，消息
I have a good news