① Don’t talk We are trying (do) homework.

5. 你在中國待了多長時(shí)間了？

 have you in China?

4. 你品嘗過中國食物嗎？

you Chinese food?

3. 你看過兵馬俑嗎？

you the Terracotta Army?

2. 你去過長城嗎？

you to the Great Wall?

1. 你參觀過故宮博物院?jiǎn)幔?/p>

you the Palace Museum?

the Terracotta Army,the Great Wall,the Bird's Nest,the Palace Museum

1. 2. 3. 4.

              be,get,make,become,change 

   Since 1946,computers 1 our lives. The first computer was invented in 1946. It was as large as a room and very difficult and slow to use. But since the invention of “silicon chip”(桂片) ，computers 2

smaller,easier and faster to operate. Some computers are as small as TV sets. Some can 3 smaller than a book. And computers are 4 smaller and smaller all the time. Who knows what the computers of tomorrow 5 like? 

1. 2. 3.

4. 5.

5. improve? why,you,do, English,want,to, your (連詞成句)

4. The computer can play chess better than humans. (改為同義句) 

Humans can't play chess the computer.