九年级英语上册 Unit 5 Look into Science Lesson 28 The Study of Living Things课件 （新版）冀教版.ppt

Lesson 28Unit 5 Look into Science5Lesson 28 Lesson 28 The Study of Living ThingsThe Study of Living Things学习目标学习目标objectivesobjectivesTo learn some new words:biology，，fantastic, butterfly……To understand the passage.To learn Attributive clause.Lead inLead in1.Would you like to be a biologist when you grow up? Why or why not?2.What mysteries of nature do you know about?Think about it生物生物蝴蝶蝴蝶迁徙迁徙; 移居移居奇异的奇异的完全地完全地孙子孙子(女女)；外孙；外孙(女女)雌性雌性马利筋（一种植物）马利筋（一种植物）化学物质化学物质令人费解的令人费解的biology n. butterfly n.migrate v.fantastic pletely adv.grandchild n.female n. milkweed n.chemical n.puzzling adj.WordsPre-readingPre-reading1.引起某人的注意引起某人的注意2.回到、返回回到、返回3.多达多达4.下蛋下蛋5.在大学里在大学里6.小片的森林小片的森林7.动身去某地动身去某地 draw one’s attention Useful expressions:return to…as many aslay eggsat a universitysmall piece of forestleave for While-readingWhile-reading1. In the United States and Mexico, farmers use chemicals that kill milkweed. 2. Do the females lay eggs on only one plant?________________________________.3. What does Dr. Chip Taylor study? _______________________________________________.4. Here, as many as ___________ butterflies spend the winter.5.In Mexico, the butterflies always return to the same small piece of forest, which is only 20 kilometers wide .___________________________________________Read the lesson and finish the exercise.FYes, they doHe studies one kind of North American butterfly230 million在墨西哥，这种蝴蝶总是回到仅有在墨西哥，这种蝴蝶总是回到仅有20千米宽的同一小片森林。

千米宽的同一小片森林T√1. 有关有关attention的短语的短语2. as…as 的用法的用法3. lie 与与 lay的用法的用法4.fantastic5.chemical6.have been drawingLanguage PointsATTENTION1.draw one’s attention to sth. (使某人注意某事使某人注意某事).2. catch one’s attention (引起某人注意引起某人注意)3. pay attention to sth. (注意、留心注意、留心) 4. give one’s attention to sth. (关心关心)AS…AS…•1. He is ___________ his father.(像像…………一一样高高)•2. I do my homework ___________ my sister does.(像像…………一一样认真真)•3. They see ___________ one hundred students in front of the library. (像像…………一一样多多)as tall asas carefully asas many asLIE 与与 LAYThe hens _____ (lay) eggs every day.Have you ever ______ (lie) to your parents?layliedlay (下蛋下蛋) --- laid --- laid --- layinglie (说谎说谎) --- lied --- lied --- lyinglie (平躺平躺) --- lay --- lain --- lying作形容词，意为作形容词，意为“奇异的、极好的、了不起的奇异的、极好的、了不起的”，在句中作定语或表语。

如：，在句中作定语或表语如：4. fantasticI think this is a fantastic invention. 我想这是一个了不起的发明我想这是一个了不起的发明作可数名词，意为作可数名词，意为“化学物质、化学制品化学物质、化学制品”，复，复数形式是数形式是chemicals如：There are no chemicals in this kind of food. 这种食品中没有化学物质这种食品中没有化学物质5. chemical作形容词，意为作形容词，意为“化学的、化学作用的化学的、化学作用的”，在句中，在句中作表语或定语如：作表语或定语如：We can find chemical additives in many foods. 我们在很多食品中发现了化学添加剂我们在很多食品中发现了化学添加剂句中的句中的have been drawing 是现在完成进行时，它是现在完成进行时，它由由“助动词助动词 have (has) + been + 现在分词现在分词”构成，构成，当主语是第三人称单数时用助动词当主语是第三人称单数时用助动词has，其他情况，其他情况用助动词用助动词have。

6. Fantastic facts about the butterfly have been drawing Dr. Taylor’s attention. 它往往与表示一段时间的时间状语连用，如：它往往与表示一段时间的时间状语连用，如：all the time, this month, all day, these few days, for a year, since a week ago等She has been playing basketball after school this week. 这个星期她放学后一直打篮球这个星期她放学后一直打篮球Tony has been drawing in his bedroom all the afternoon. 托尼在卧室画了一下午托尼在卧室画了一下午WHAT DO YOU THINK IS THE MOST FASCINATING THING IN NATURE?Post-readingPost-readingDiscussion Are you familiar with these sentences? They are from the books we have learned. 1. In Mexico, the butterflies always return to the same small piece of forest, which is only 20 kilometres wide.2. The butterflies that return to the south are the great-great grandchildren of the butterflies that left for the north.3. But in Mexico, people cut down the trees that the butterflies need to rest on because they want more land for farming.4. In the United States and Canada, farmers use chemicals that kill milkweed.Attributive Clause定语从句定语从句 定定语从句从句是指在句中作定是指在句中作定语的的____________。

先行先行词是被定是被定语从句所修从句所修饰的的词￿ ￿（通常是名（通常是名词或代或代词）关系关系词，，也叫作引也叫作引导词，是在从句中替代先行，是在从句中替代先行词，在定，在定语从句从句中充当一定的成分，通常是中充当一定的成分，通常是____________或或____________，作，作__________时常可以省略常可以省略先行先行词为人人时，引，引导词常用常用__________或或__________；；先行先行词为物物时，引，引导词常用常用____________或或______________从句从句主语主语宾语宾语宾语宾语whothatthatwhich定语从句定语从句Attributive ClausesThe boy who is wearing a black coat bought an iPod yesterday.The experiments that we did yesterday were fantastic. 主语主语定语从句定语从句定语从句定语从句主语主语修饰修饰the boy修饰修饰 experiments关系关系词的用法的用法先行先行词在从句中作在从句中作主主语在从句中作在从句中作宾语在从句中在从句中作定作定语指代人指代人who/thatwhom/who/thatwhose指代物指代物which/that which/thatwhose/ of which关系关系词词特殊情况下，由特殊情况下，由that引导的定语从句：引导的定语从句：1.先行词为先行词为all, everything, nothing, something, anything, little, much 等不定代词时。

等不定代词时2. 先行词被先行词被all, little, much, every, no 等修饰时等修饰时3. 先行词被序数词或最高级修饰时先行词被序数词或最高级修饰时4. 先行词被先行词被the only, the very, the same, the last 修饰时5. 先行词为人和物的组合先行词为人和物的组合6. 主句是主句是who/which开头的特殊疑问句开头的特殊疑问句请给下列的定语从句补充引导词请给下列的定语从句补充引导词1. Who is the girl _____ talked to you yesterday.2. Look at the photos ____________ I took on my trip. 3. It successfully shows the rich culture_____________ makes Beijing so famous.4. The photo____________ we liked best was taken by Zhao Min.5. His father is the person_____________ will be most unhappy.6. Tom is the boy ________ we saw in the shop.thatthat/whichthat/whichthat/whothat/whichthat/who7. I am sure she has something ________ you can borrow.8. I’ve read all the books ________ are not mine.9. This is the first book__________ he has read.10. This is the very book ______ belongs to him.11. They talked for an hour of things and persons _________they remembered in the school.thatthatthatthatthatFinish the exercise on P73, 2PracticePractice1.To grasp the contents of this lesson.2.Preview Lesson 29.HomeworkHomeworkHomework。