来像..... He looks like his father .他长的像他的爸爸。

10.It's easy for children to wake up and know where they are. 对于孩子来说醒来并知道他们在哪里这是容易的。 It's +adj. for sb. to ........ 对于某人来说做.... 是......

It's important for us to learn English well . 对于我们来说学好英语是重要的。

11.Some will look like humans ,and others might look like snakes. 有的看起来像人，还有的看起来或许像蛇。  Some......., others...... 有的..... 还有的..... One ......., the other...... 一个...... 另一个.....( 仅限于两者，或两部分)

I have two friends . One is Tom. The other is Mary. 我有两个朋友一个是汤姆另一个是玛丽。

There are 50 students in our class. Five are boys,the other students are girls. 我们班有五十名学生。五个男生其余的是女生。

12.That may not seem possible now. 那现在似乎是不可能的。seem+adj. 似乎..... He seems happy.他似乎很高兴。 seem to.....似乎...... He seems to know Tom very well.他似乎很了解汤姆 He seems to be happy.他似乎很高兴 It seems that+从句似乎...... It seems that you are excited. 你好像很兴奋

13.hundreds of +复数 数百/几百（概数，类似还有thousands of; millions of）

Hundrds of visitors come to Beijing every year. 每年成百上千的游客来北京。

14.be different from...... 与 .....不同 His new bike is different from mine.他的新自行车与我的不一样。 difference n. 区别；不同 What's the difference between the pictures?两幅图之间有什么区别？

15.wake up 醒来（woke） Robots can't know where they are when they wake up.机器人醒来的时候不知道他们在哪。 wake sb. up表示 "唤醒某人" please wake me up at five o'clock. 五点请叫醒我。

16.get bored 变得厌倦 get+adj. 变得......

The day is getting longer and the night is getting shorter.白天逐渐变长夜晚逐渐变短

17.be able to与can 能、会 be able to用于各种时态，而can只能用于一般现在时态和一般过去时态中。例 如： I have been able to speak two languages. （不可以用can） 我已经会说两门语言 We will be able to fly to the moon for vacation. （不可以用can） 我们将能够去月球度假 Mary could sing well when she was five years old. 玛丽五岁时歌唱得好。

四、单元练习。

一）、单项选择

（ ）1. -How soon will he come back?--________.

A. After three days B. In a week C. On Friday D. Next month

（ ）2. -What does Zhai Zhigang do, do you know?--Of course. He is a famous ________. He is the first Chinese to walk in space.A. astronaut B. engineer C. actor D. singer

（ ）3. ________ a teacher, I think I should teach the students not only how to learn but also how to be a man..A. To be B. For C. As D. With

（ ） 4. -What does the ________ mean?--It is a place to live in space.

A. astronaut B. space station C. apartment D. rocket

（ ）5. Don't give up. I think your dream will ________.

A. come up B. come over C. come out D. come true

（ ）6. Now the computers are ________ more and more people all over the world.

A. used for B. discovered by C. used by D. discovered for

（ ）7. -What are you going to do in the future? --I am dreaming of opening up my ________ company. A. own B. myself C. owner D. oneself

（ ）8. There are ________ people having lunch at this restaurant every day.

A. hundred of B. hundreds of C. two hundreds D. two hundred of

（ ）9. -What do you think of the robots in the future? --I think they won't ________ do all the work like humans. A. can B. like C. able to D. be able to

（ ）10. If you are made to eat certain food for a long time, you will ________ with it.

A. fit B. agree C. get bored D. get boring

（ ）11. No one knows ________ in the future.

A. what will be happen B. what will happen C. what will it happen D. what it will happen

（ ）12. I think kids will study at home on computers ___ten years. A.at B.for C.after D.in

（ ）13. Hurry up! The train _____ in two minutes. A.go B.went C.has gone D.will go

（ ）14. My father was _____ than he is now. A.thinner B.thin C.less D.few

（ ）15. The boy ___off the bike and hurt his leg yesterday. A.fall B.fell C.falls D.will fall

（ ）16. I have ____ homework to do than you. A.much less B.much C.very little D.fewer