2.have to表客观需要，有人称和时态变化，否:don’t/doesn’t/didn’t have to(没必要)

—Must I be home before eight o’clock?8点之前我必须回家吗？

—Yes,you must./No,you needn\\\\\\\\\\\'t./No,you don\\\\\\\\\\\'t have to.

Unit10 Ifyou go to the party,

you’llhave a great time!

【重点词语/短语用法解析】

1.have agreat time意为“玩得愉快”，=enjoy oneself,have fun,have a good/wonderful/nice time

have a great/good time in(doing)sth.做某事很开心

2.ask sb.（not）to do sth.要求某人（不）做某事

The teachers ask us to do(do)lots of homework.

3.order sth.from+地点“从某地订购食物”

I want to order some books fromthe book store.

4.keep…to oneself保守秘密

5.unless conj.除非；如果不

unless引导的条件句表示在特定条件下，才决定做或不做一件事。=if...not

The concert will be held asschedule unless there is a typhoon.=The concert will be held as schedule ifthere is not a typhoon.

6.be afraidto do sth.害怕干某事

I’m afraid to speak in front ofother people.

be afraid of sth.害怕某事

He told me not to be afraid ofdifficulties.

be afraid+that从句

I’m afraid that I can’t finish ontime

7.be angry withsb.

We were angry with him forkeeping us waiting.

be angry at/about sth.

He is angry at/about your answer.

I was very angry at what he said.

8.in the end最后；终于=at last/finally

at the end of在...末端；到...尽头

He married the nice girl in theend/at last/finally.

The school is at the end of thestreet.

9.careless adj.粗心的；反义词：careful，意为“小心的”。

The boy is very careless.这个男孩很粗心。

He is more careful than me.他比我认真。

10.advise v.“劝告；建议”n.advice,是不可数名词.

Give me some advice!

advise doing sth.建议做某事。

advise sb.（not）to do sth.建议某人（不）做某事

I advise waiting till the righttime.我建议等到适当的时候。

I advise him not to sleep lateevery day.我建议他不要每天睡懒觉。