1、2. Look! The boys and the girls （dig）holes. They are going to plant trees.3. He （wise） decided to tell the truth.4. She is a woman of great （wise）.5.Our country is a （rich）land. I love it very much.6. He （depend）on his writing for his living.7.There are two （different） in the following pictures.8. D
2、riving after drinking wine （not allow） in China.9.That company is a （produce） of television sets.10.The two factories are our citys biggest （pollute）.11. They made up their minds to deal with air （pollute）.12. We must take （act） to improve the environment13. After so many hard years he is still （liv
3、e）.14.Thats the （bad） film Ive seen.15.He （empty） his bag but still didnt find his pen.【Part One Comic strip】1.Yes. Trees are good for us.（P106） 【短语】对.有好处，对.有益 be good for 对某人好 be good to sb =be friendly to sb; 擅长. be good at = do well in 例如：Eating more vegetables is good for your health. People in
4、the shop are good/friendly to us all. Lily is good at/does well in Maths.【Part Two Welcome to the unit】1、We can save energy by turning off the lights when we leave a room. （P107） turn off 关闭（电灯） turn on 打开. turn up 开大； turn down 关小Would you turn off the TV if no one is watching it ?2、More and more f
5、amilies own cars and this causes serious air pollution.（P107）own v.有，拥有，占有 owner n.物主，所有人，own pron. 某人自己的（东西）。【短语】 某人自己的 of ones own -常用作后置定语，修饰名词 独自，独立 on ones own =alone或 by oneself-常用作表语或状语 Who owns the cat?4、And we should remember to turn off the lights when we leave a room.（P107） 【短语】remember t
6、o do sth 记得要去做某事 remember doing sth 记得曾做过某事Please remember to take your book when you get out here.【Part Three Reading】1、In Switzerland,things like glass,plastic and paper are separated into different groups and then recycled.（P108） 1） separate v. 分开; （使） 分离; 区分; 隔开;【短语】脱离，使分开 separate from 把分成若干部分
7、separate into 被分成 be separated into 例如：Lets separate into smaller groups. My mother is separating the good apples from the bad ones.2、Some of the clothes are sold in charity shops, some are given to the poor , and others are sent to factories for recycling. （P 108） 1） send v. 发送，派遣 【短语】把某物寄/送给某人 sen
8、d sth to sb=send sb sth 开除，撵走 send away 派人去请send for 发射send up 寄出，发出 send offHe sent a present to her yesterday=He sent her a present yesterday. 3、My family and I often send our old jeans and T-shirts to this organization.（P 108） 【辨析】 family & house& homehome意为“家”，指某人出生及日常生活的环境，包括住所及家人。house一般指居住的建筑
9、物，即“房子，住宅”。family意为“家人，家庭”，指组成家庭的成员，特别指父母及子女，有时仅指子女。Her family is a happy one. My home is in Nanjing. There are three rooms in my house.4、For example, we are not allowed to cut down trees.Otherwise,we will be punished （P108） 1）allow v. 允许 【短语】allow sb to do sth: 允许某人做某事；否定结构：not allow sb to do sth a
10、llow doing sth : 允许做某事 【注意】被动语态结构：be allowed to do sthThey dont allow students to wear earrings. He doesnt allow fishing here. 2） cut v. 剪下，切下，割下 过去式-过去分词 cut-cut 【短语】 cut down 砍伐，砍倒，缩短 cut across 抄近路； cut up 切碎 cut off 切除，割掉，剪下； cut out 裁剪； cut in on sb 打断某人的话 Cut the cake into two exact halves. 3）
11、 punish v. 惩罚 n.punishment 【短语】因为而惩罚某人 punish sb for sth/doing sth5、If we drop litter in a public place, we will be fined by the police. There are also laws to limit air and water pollution.（P 109） 1） 【短语】drop litter 扔垃圾 2）fine adj. 好的，优良的，健康的，晴朗的 v. 罚款 【短语】 因而罚款 fine sb for 罚某人某物 fine sb sthShe was
12、 fined $300 and banned from driving for one month.3） limit v.限制，限度 【短语】 limit to我们必须限定一人吃一块蛋糕。We must limit ourselves to one cake each.6、We depend on its rich resources to live ,so it is important for us to protect it wisely. （P 109） 1）depend v. 依靠，依赖，指望it depends + 疑问词取决于 根据而定depend on sb（to do sth
13、/doing sth ）相信，依靠That （all） depends. It all depends那得看情况 All living things depend on the sun for their growth. 万物生长靠太阳。 2）wise adj.英明的，明智的，聪明的 adv.wisely7、Luckily, we are starting to use the energy from the sun,wind, and water.（P 109） luckily adv. 幸运的是，所幸的是【注意】反义词：unluckily 不可数名词，机会，运气，机遇 luck； 幸运的，走好运的 lucky 【辨析】 start to do & start doing 开始做某事 常用start to do 而不用start doing 1）句子主语是物不是人的时候； 2）当start 用于进行时即starting时，后接to do sth； 3）当start后接表示心理活动的动词如understand, realize等.8、These new types of energy cost very little and will never run out.
