文档介绍：Unit 1 Topic 1
I. 重点词组
photos 照相 
…from…向……学****br/> detail 详细地 
order to为了  
support to…为……提供帮助
sth. oneself 亲眼所见某物
in touch with 与……保持联系
of各种各样的 
progress 取得进步
up 起草,拟定
to 由于
1. In one place I saw children working for a cruel 。
2. I felt sorry for 。
3. Where have you been, Jane? 你去过哪里,简?
4. She has gone to Cuba to be a 。
5. There goes the bell. 铃响了。
6. Though I had no time to travel, I still felt very ,但是我仍然感到很开心。
7. Now our country has developed 。
1. 现在完成时态的构成:助动词have/has+动词的过去分词
. You have e back from your hometown.
2. 现在完成时态的句式:
. (1) I have been to Mount Huang with my parents.
(2) I haven’t seen him for a long time.
(3) Where have you been?
(4) ——Have you ever cleaned a room?  ——Yes, I have. / No, I haven’t.
3. have/ has been与 have/has gone 的区别
have/has been to —— have/has gone to
. (1) I have been to Mount Huang with my parents.   (2) She has gone to Cuba to be a volunteer.
Unit 1 Topic 2
I. 重点词组
1.  get lost 迷路 
2.  each other 彼此
least 至少
4take place发生 
5because of 因为  
strict with sb. 对某人严格要求 
out 实行    
short of 缺乏
measures to do
known as…作为……而著名
well in doing…在……方面起作用 
couple of  一些  
13keep up with赶上,跟上
1. Have you found him yet? 你已经找到他了吗?
2. ——I really hate to go shopping. 我的确讨厌购物。——So do 。
3. But it seems that their living conditions were not very 。
4. But great changes have already taken place in China 。
5. Because of the one-child policy, now most families have only one child.
由于我国独生子女政策的实行,现在大部分家庭只有一个孩子。
6. What’s the population of the .?美国的人口是多少?
7. ——What’s more, the population in developing countries is growing faster.  ——So it is.
而且,发展中国家的人口在更快地发展。