7BUnit4复习提纲

1、1. 日常生活2. 想要做某事3. 想了解 , 更多4. 采访某人某事5. 让空气凉爽而干净6. 有害的气体7. 主要的斗士8. 使 , 更方便9. 来自10. 例如11. 事实上12. 从, 得到13. 树的叶子14. 向四周看15. 接电话16. 没有树的世界17. 砍倒18. 成百万上千万19. 每年20. 停止做某事21. 写下，记下22. 躺在沙滩上23. 考虑24. 尽力做某事25. 空气污染26. 在许多方面27. 因为28. 对 , 有益，有好处Chapter 4 Save the trees Phrases and sentences1. daily lives2. want

2、 to do3. know more about sth.4. interview sb. about sth.5. keep air cool and clean6. harmful gases7. major fighters8. make more convenient9. come from10. for example11. in fact12. get from13. the leaves of trees14. look around15. answer the phone16. a world without trees17. cut down18. millions of19

3、. every year20. stop doing sth.21. write down22.lie on the beach23. think about24. do one 's best to do sth.25. air pollution26.in many ways27. because of28. (be) good for Meaning of the words and phrases1. save keep sb./sth. safe from death/harm; rescue; protect2. discusstalk about sth. with sb

4、.3. harmful not healthy; bad for4. produce make things to be sold5. convenientuseful or easy to do6. come frombe from7. look aroundlook about/round8. major main； big and important9. for example such as10. fight against try hard to stop11. carry take sth. with sb.12imagine make a picture of sth. in m

5、ind13. take inbreathe; absorb14.Language:*现在进行时态1. 定义：表示现在（说话瞬间）正在进行的动作。He is watching TV now.He is drinking a glass of water.还可以表示当前一段时间内的活动或现阶段正在进行的动作。We are working on a farm these days.I am writing a book this year.2. 谓语动词的构成：助动词be + V-ing。请大家注意观察，其中的be随着人 称、数的变化而变化 （am, is, are三种形式）。I m_visitin

6、g my friend.He iseating an ice cream.Wd re preparing for Spring Festival.They are lying in the sun.注：不加助动词be的V.-ing 或be+V原形不能构成现在进行时。如:He visiting his friend. （ X）He is visit his friend. （ X3. 句型转换：在变为否定句时，be后加not。在变为一般疑问句时把be提 前到句首，人称和be作相应变化。1）将下面的句子变为否定句：I ' iwriting the postcard. .2）将下面的句子变为

7、一般疑问句：I ' rwriting the postcard. ?3）将下面的句子变为一般疑问句：Tony is having lunch.?现在进行时的特殊疑问句结构为：“疑问词 +are/is + 主语 +doing.? ”例如:We are making kites under the tree.（就划线部分提问）宀1. Who are making kites under the tree?2. What are you doing under the tree?3. Where are you making kites?【4种句型结构分析】注意看转换过程中的变化。肯定句:

8、He is writing a postcard.否定句: He is not （=isn ' t） writiacpostcard. 一般疑问句（把 be提到句首）：Is_he writing a postcard?Yes, he_is肯定回答。） No, he isn '（否定回答。）特殊疑问句： What is he doing?64.动词-ing的构词规律： V-ing的组成形式有如下几种:1）动词后面直接加 ingdoing2）动词去掉e加ing:having3）重读闭音节、结束只有一个辅音字母的 running swimming sittingbuyingplayi

9、ngtaking giving writing,双写动词最后一个字母，然后加ing。shopping getting beginning putting4）特殊形式的变化lie lying die dyingNow it' s 8 o ' clock. What are you doing?5.现在进行时的标志词有：Look! Listen!（你在干什么？）（我现在正在读书。（听，她正在唱歌。What are you doing now? I ' m reading now. Listen! She is singing.Look! My mother is water

10、ing the flowers.(看，我妈妈正在浇花。)6. want, like, think, need, love, hate, understand, knov等表示情感或思想的动 词通常不用于现在进行时。女口：I ' m hungry. I wantsomething to eat.我饿了，我想吃点东西。(不能用I ' m wanting )see, hear, smel和taste等系动词往往只用在现在时中。如： Do you see that man over there? （你看见那边的那个人了吗 ?）I. 写出下列动词的-ing形式。gocall read w

11、ritecomesing playcloseshopruntake open die feel II. 句型转换。1. She is watching a ballet.(变否定句)2. We ' re waiting for our teacher.(变一般疑问句) ?3. Is Tony calling a friend?(作肯定问答)4. They are lying in the sun.（划线提问）?III. 用括号中所给词的正确形式完成句子。1. She(like) to write poems now.2. Peter(play) the guitar there now

12、.3. Sam(know) my home address now.4. The cake(taste) very nice.5. Look! The girls(dance) in the classroom.6. Helen(not wash) the clothes at the moment.根据句子意思，用所给单词的适当形式填空。1. Let ' sps_o(dig) holes and go to have a rest.2. We use this way(save) these endangered危的)animals.3. Running is good for(ke

13、ep) healthy.4. People destroyed the farm by(throw) rubbish there.5. We did our best(carry) these heavy boxes by ourselves.6. We must try our best to fight against water(pollute).7. The long bridge is(make) of stones.8. In our(day) lives, we need much water every day.9. This kind of medicine has save

14、d(million) of peopselives.10. Yesterday Nancy and her classmates had(funny) at the zoo.11. It' convenient(take) a bus to school.12. Trees are important for(we).13. I can ' t imagine(liveworld without trees.14. Now some animals are in(dangerous). We should try to protectthem.15. Trees are really(fight). They help us stop pollution and make ourlives better.Writing请根据下面提示，写一篇有关保护树木的短文。提示：树木的好处和用途很多，对我们非常重要，可是人们每年砍伐太多树木，破坏 了环境。我们应该采取措施多植树，保护森林并防止树木被砍伐。要求：60字左右。开头和结尾已给出，不计入词数。参考词汇：building material(建筑材料),wood, damage(破