初中英语上册第三单元therebe句型讲课件.doc

第三课时 Protect The Earth第一课时 讲授这一单元的单词，以及重点单词拓展开来的各类词性，搭配及短语。课本reading A部分由图片展开的而引出的关于地球的话题。重要的单词,短语：earth- on earth， report-make a report, land- on the land, fact-in fact, putinto throw away重要搭配：provide sb with sth = give sb sth = offer sb sth 给某人提供某物 = provide sth for sb = give sth to sb = offer sth to sb protect sb from sth 保护某人免受.的影响 protect sb from doing sth词性变换: protect (v.) - protection (n.)- protective (adj.) 保护 pollute (v.) -pollution (n.)- polluted (adj.) 污染 important(adj.) - importance (n.) 重要 own (adj.)- owner (n.) 自己的，主人 第二课时 做本单元的reading理解训练，获取信息，分析课文以及各段落内容，理解课文内容。以及引导从认识地球到保护地球的意识上的转变。第三课时 1. 复习第一课时的重点单词，短语，搭配。做课堂练习一，二，三 2. 分小组朗读课文，熟悉课文内容。 3. 由课文的结构引出并讲解there be 句型知识， 1）there be 句型，是一个存在句，表示某地有某物/ 某物 在there be 句型中，be动词的具体形式由主语的单数，复数和“就近原则”决定。主语是单数，be动词用 is (was) : There is an apple on the table. 否 There is some water in the glass. 否主语是复数,be动词用 are (were):There are some apples on the table. 否“就近原则”，如果说有几件物品时，be动词由与它最近的名词的单复数决定。 There is an apple and two oranges on the table. 否 There are two oranges and an apple on the table. 否小结：there be 句型的否定句在be 动词后加not some用在肯定句，any 用在否定句或疑问句 And 用在肯定句，or 用在否定句2）疑问句：一般疑问句，把be动词提到句首。 There is an apple on the table. 疑 Is there an apple on the table? - Yes, there is./ No, there is not (isnt). There are some apples on the table. 疑Are there any water in the glass? -Yes, there are./ No, there are not (arent). 特殊疑问句，一般针对划线部分提问。 There are two apple on the table. How many apples are there on the table? There is some water in the glass.There is an apple on the table. (对主语提问) Whats on the table? 主语是物用whats 提问there is a little boy in the room. (对主语提问) Whos in the room? 主语是人用whos 提问3）there be 句型与have(has)区别 There be表示某地有什么(存在状态) sb have / has 某人有什么(拥有) I have a lot of friends in the classroom. 在教室里我有很多朋友。 There are a lot of students in the classroom.教室里有很多学生。课堂练习一 词汇翻译。1. Earth _ 在地球上 _2. report _ 作报告 _3. land _ 在陆地上 _4. protect _ 保护地球 _5. energy _ 生产能源 _二 词形转换。1. protect (名词) _2. pollute (名词) _3. important (名词) _4. large (同义词) _5. problem (同义词) _三 选出可替换划线单词的选项。() 1. The Earth provides us with air, water and food.A. gives B. shows() 2. We burn things to make energy.A. seton fire B. make very strong() 3.This pollutes the air.A. makesclean B. makesdirty() 4. This pollutes the Earth and kills animals and plants.A. cleans B. makes die() 5. It is important for us to protect the Earth for our future.A. keep safe B. change四选择题。()1. The Earth provides us _ air, water and food. A. on B. with C. for D. in()2. There _ grass in a forest. A. have B. are C. is D. has()3. There _ a ruler, three pens and some erasers in the pencil-case. A. has B. is C. are D. have()4. There is _ in the bottle. Its _ . A. anything, full B. anything, empty C. nothing, full D. nothing, empty()5. The sun provides us _ light and heat. A. for B. with C. in D.of()6. There _ on the wall. They are very beautiful. A.are photoes B. are photos C. is a photo D. is photos()7. The boys have got _ already. A. two bread B. two breads C. two pieces of bread D. two piece of bread()8. There _ some _ in the river. A. is, fish B. are, fishs C.is, fishs D. are, fish()9. There _ two _ in the box. A.is, watch B. are, watches C. are, watch D. is, watches()10. Mr. White has three _ . A. child B. children C. childs D. childrens()11. There are many _ in the fridge. A. fish B. fruit C. eggs D. bread()12. There are three _ and seven _ in the picture. A. cows, sheeps B. cows, sheep C. cow, sheep D. cow, sheeps()13. There _ not any water in the glass. A. has B. is C. are D. have()14. _ any flowers on both sides of the street? A. Is there B. Are there C. Has D. have()15. There _ great changes in our country since 1979. A. have been B. were C. has been D. Are五用there be 句型的适当形式填空。1. A: How many days _ (there / be) in March? B: _ (there / be) 31 days.2. A: _ (there / be) a lot of ATM machines in most banks? B: Yes, _ (there / be) ATM machines in most banks.3. A: Yu Garden is very crowded. B: Yes. _ (there / be) always lots of people in Yu Garden. _ (there / be) some very good restaurants there.4. A: _ (there / not be) a swimming pool at my school. B: Really? _ (there / be) one at my school. A: Youre lucky! _ (there / not be) many schools with swimming pools.课后作业一翻译。1. 看！天空中有奇怪的东西。Look! _ _ _ _ in the sky.2. 没有水，地球上就没有生命。Without water, _ _ _ no life on earth.3. 冰箱里有多少冰激凌。_ _ ice creams _ _ in the fridge?4. 黑板在我的课桌面前。_ _ a blackboard in front of my desk.5. 一些学生在操场上。_ _ some students on the playground.6. 我会提供聚会的食物。Ill _ the food _ the party.二改错。1. There are 20 man teachers in out school._2. There are a book and two pens on the desk._3. How much bananas do you have?_4. Is there something wrong?_5. There are much pollution in the world now._6. There will going to be a football match in our school._7. I have a lot homework to do._三用括号所给单词的正确形式填空。1. Its _ (importance) for us to study hard.2. We must stop _ (cut) down the trees.3. The water _ (pollute) is serious now.4. Whose books are _ (this) ?5. When will y