1.It's time for sb to do sth 是某人做某事的時候了; 該是...

　　It's twelve thirty. It's time for my friend to take a train.

　　現在是十二點半。我朋友該坐火車了。

　　It's time for us to say goodbye. See you next time.

　　我們該說再見了。下次見。

　　It's eight o'clock. It's time for my brother to go to school.

　　八點了。我弟弟該上學了。

　　2.Let sb do sth 讓某人做某事

　　It's hard to make a decision. Let me think about it.

　　很難做出決定。讓我想想。

　　I have no cell phone. Let me use yours.

　　我沒有手機。讓我用你的。

　　You must be thirsty. Let me get your something to drink.

　　你一定渴了。我給你拿點喝的。

　　3.See sb do sth 看到某人做某事

　　He saw the zebra jump.

　　他看見斑馬跳了。

　　Jack sees his daughter run in the park.

　　傑克看見他女兒在公園裡跑。

　　Mark sees Chris swim in the pool.

　　馬克看見克裡斯在遊泳池裡遊泳。

　　4.Must do sth. 必須做某事

　　I must run and help him.

　　我必須跑去幫他。

　　You must go to work every day.

　　你必須每天去上班。

　　She must go home today.

　　她今天必須回家。

　　5.too...to 太…以至于不能

　　This bracelet is too expensive to buy.

　　這個手镯太貴了，買不起。

　　This baggage is too heavy to lift.

　　這個行李太重，搬不動。

　　It's too cold to go outside.

　　天氣太冷，不能出去。

　　The apples are too many to count.

　　蘋果太多了，數不清。

　　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.

　　我要給他做個生日蛋糕。

　　They are going to see a movie tomorrow night.

　　他們明天晚上要去看電影。

　　I'm going to make this shirt shorter.

　　我要把這件襯衫改短一點。

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