牛津英语八年级unit4grammar

1、 Unit 4 Wild animals Grammar简要提示一、教学目标 1.知识目标 1)学习并掌握 if引导的条件状语从句。 2)学习并掌握 because, because of 的用法及区别。2.能力目标 1)能运用 if引导的条件状语从句。 2)能运用 because和because of 。 二、教学重难点if引导的条件状语从句中，用一般现在时表示将来，主句用一般将来时。教学流程Part One Lead-inIn this unit, we learned a report about giant pandas. We know they are very lovely. B

2、ut they are in danger. They may have many problems in the future. Do you remember the story of Xi Wang. Do you remember what problems they may have in the future?Yes. If hunters catch a giant panda, they will kill it for its fur.If farmers cut down trees and forests, giant pandas will have nowhere t

3、o live.If people find baby pandas alone, they will often take them away.Please remember: If we do nothing, there will be no giant pandas in the world.We can also say: There will be no giant pandas in the world if we do nothing. Part Two learning for useStep 1 PresentationWe really need to do somethi

4、ng to protect wild animals. Amy also knew a lot about wild animals. Now she is thinking about wild animals. What will Amy do if she sees a snake?Lets use coditional sentences to talk about the possible result of a possible action.阿梅正在考虑有关野生动物的事情。假如她看到一条蛇，她会怎么做？ 让我们用条件状语从句来谈论可能出现的情况。Step 2 PracticeNo

5、w, open your books, turn to page 64, finish Part A1. Lets chek the answer. Answers to Part A1d c e a b Then please read Part A1 together.There will be a class visit to Beijing Zoo next week. Amy is writing a note to tell her parents why she wants to go. Please open your books, turn to page 65, help

6、Amy complete her note. Lets check the answers.Answers to Part A21 go 2 will learn 3 arrive 4 will see 5 find 6 will have 7 have 8 will watch 9 watch 10 will get 11 finish 12 will be Please read Part A2 together. Part Three Rule outWell, lets work out the rule together!if引导的条件状语从句中用一般现在时表示将来，主句中用一般将来

7、时。Conditional sentences (条件状语从句)If-clause(Simple present tense)Main clause(Simple future tense)If hunters catch a giant panda, they will kill it for its fur.当我们把 if引导的条件状语从句放在句子开头时，我们需要在条件状语从句后用逗号。假如主句在开头，则没有必要加逗号。We need a _(comma, full stop) after the if-clause when it is the first part of a sente

8、nce.e.g. If I go to Beijing Zoo, I will learn a lot about animals.I will learn a lot about animals if I go to Beijing Zoo. Part Four PracticeAmy returned home from Beijing Zoo. Her father is asking her some questions about wild animals. Open your books, turn to page 66, finish Part A3.Lets check the

9、 answers.Answers to Part A31 is in danger 2 will attack 3 is hungry 4 will catch 5 are thirsty 6 will walk7 will hunt 8 live in the wild 9 will live 10 have babies 11 will protect 12 is danger请同学们记住，我们可以用 if引导条件状语从句来谈论可能发生的动作，主句用一般将来时，从句用一般现在时。Grammar B Part One Lead-inNow we know the number of gian

10、t pandas is getting smaller and smaller. 我们知道大熊猫的数量越来越少，因为他们面临着许多危险，让我们一起保护他们。Now lets learn Grammar B.Look at these pictures, what are they? Yes. Kangaroo, giant panda, bear, dolphin, tiger, squirrel.Pleae have a discussion: Which animal do you like best? I like best. Why?Because I think Which anim

11、al do you like least? I like least.Why?Because I think Part Two learning for useStep 1 PresentationWe knew that Amy went to Beijing Zoo. Now Daniel is asking her about the visit to the zoo.You can see four sentences here. 这儿有四句话，请同学们把他们两两搭配，用其中两句分别来谈论另外两个动作的原因。The dolphin show was long. We must prot

12、ect wild animals. Wild animals are our friends. I stayed in the zoo for so much time. Yes. We must protect wild animals because wild animals are our friends. I stayed in the zoo for so much time because the dolphin show was long. Step 2 PracticeWell done. Open your books, turn to page 67. Use becaus

13、e to help Amy answer Daniels questions. Lets check the answer. Answers to Part B on page 671. Because I want to see wild animals there.2. Because we mustnt feed the animals in the zoo.3. Because the dolphin show was long.4. Because wild animals are our friends.Amy saw a dolphin show in the zoo. Now

14、she is talking about it. Turn to page 67, Please work out what she is saying by making sentences using because of. Lets check the answer.Answers to Part C on page 671. All the people cheered because of the wonderful show.2. Lots of people knew about the show because of the advertisement on TV.3. The

15、 dolphins were really tired because of the long performance.4. Some students couldnt go to the show because of the exam next week.Part Three Rule outWe can use because to give the reason(s) for something. The word because introduces the clause of reason and we usually put it in the middle of a sente

16、nce. 我们可以用 because 来引导原因状语从句，一般放在句子的中间。e.g. Main clausebecauseClause of reasonXi Wang had to look after herselfbecauseher mother had another baby.We can also use because of to give the reason(s) for something. We use a noun, a noun phrase or a pronoun after because of. 我们也可以用 because of 来表示原因，后面跟一个名

17、词短语或代词。e.g. Main clausebecause of Noun (phrase) / pronounGiant pandas are in danger ecause ofpeople.Part Four Practice一、选用 because或 because of 完成下列句子。 1. I went to school late this morning _ I got up late. 2. I didnt go to the zoo last week _ bad weather. 3. Daniel wears glasses _ too much computer

18、work. 二、将下列句子改为同义句。1. I didnt go hiking because of the heavy rain. I didnt go hiking _ _ _ _. 2. She has poor eyesight because she does too much homework. She has poor eyesight _ _ _ _ _. Homework1. Remember how to use conditional sentences to talk about possible situations. 2. Remember the use of because & because of.3. Do some additional exercises.Additional exercises一、用 because 或 because of 填空。1. I didnt go to the zoo _ the hot weather.2. Many animals live in rainforests _ there is lots of food. 3. Amy run the other