1.It's time for sb to do sth 是某人做某事的时候了; 该是...
It's twelve thirty. It's time for my friend to take a train.
现在是十二点半。我朋友该坐火车了。
It's time for us to say goodbye. See you next time.
我们该说再见了。下次见。
It's eight o'clock. It's time for my brother to go to school.
八点了。我弟弟该上学了。
2.Let sb do sth 让某人做某事
It's hard to make a decision. Let me think about it.
很难做出决定。让我想想。
I have no cell phone. Let me use yours.
我没有手机。让我用你的。
You must be thirsty. Let me get your something to drink.
你一定渴了。我给你拿点喝的。
3.See sb do sth 看到某人做某事
He saw the zebra jump.
他看见斑马跳了。
Jack sees his daughter run in the park.
杰克看见他女儿在公园里跑。
Mark sees Chris swim in the pool.
马克看见克里斯在游泳池里游泳。
4.Must do sth. 必须做某事
I must run and help him.
我必须跑去帮他。
You must go to work every day.
你必须每天去上班。
She must go home today.
她今天必须回家。
5.too...to 太…以至于不能
This bracelet is too expensive to buy.
这个手镯太贵了,买不起。
This baggage is too heavy to lift.
这个行李太重,搬不动。
It's too cold to go outside.
天气太冷,不能出去。
The apples are too many to count.
苹果太多了,数不清。
6.Be going to do sth 打算做某事; 将做某事
I'm going to make a birthday cake for him.
我要给他做个生日蛋糕。
They are going to see a movie tomorrow night.
他们明天晚上要去看电影。
I'm going to make this shirt shorter.
我要把这件衬衫改短一点。
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