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Unit 13 We’re trying to save the earth第4课时（SectionA Grammar focus 4a-4c)
使用时段 作业内容 作业设计 设计意图 使用者 预计时长 预估难度系数
课中 基础性作业 作业一 Read and analyse the sentences in the box and work in five groups to make a conclusion of the related grammar, each group discuss different grammar. Group1The definition（定义) , structure(结构), signal words(标志词）of the Present progressive and Present perfect ...Group2The rules of Verb Present Participle and Past Participle. ...Group3The differences between Active Voice and Passive Voice, the structure of Passive voice of different tenses. ...Group4Modal verbs. ...Group5the usage of used to(肯定，否定和一般疑问句）, the differences between used to and be used to...
在合作中通过观察、归纳、回顾旧知识，明确本单元语法重点。 所有学生 3mins 低
基础性作业 作业二 现在完成时，现在进行时和被动语态练习： Fill in the blanks with the correct forms of the verbs in brackets. 1) The girls __________(dance) in the classroom right now. 2) Be quiet! Your grandpa ______(sleep). 3)---_____you ever______(be) to the US ----Yes, twice. 4)----May I speak to John ----Sorry, he_______(go)to New York. He will be back in two days. 5)----Do you know Mr. White well ----Yes. He____(work) for the WWF for two years. I_______(live) here since 1999. --- Do you often clean your classroom ---Yes. Our classroom__________(clean) every day. --- Did you go to Jack’s birthday party ---No, I________(not invite). --- What is this --- It’s a CD. This CD______(use) for learning English. A new highway in my hometown________(build) next month. Answers: 1) are dancing 2) is sleeping 3)Have...been, 4)has gone 5) has worked 6)have lived 7) is cleaned 8) wasn’t invited 9) is used 10)will be built 情态动词练习:Choose the best Modal verbs. ---_you pass me a pen I’d like to write down the phone number. --- Sure. Here it is. A.Can B. Need C. Might D. Must 2)--- May I go to the cinema, Mom ---Certainly, but youoag abe back by 11 o'clock. A.can B.may C. must D. need 3)You___worry about me. It’s nothing serious. A. can't B. mustn't C. needn't D. won't 4)---Excuse me. Is this the right way to the Summer Palace --- Sorry, I'm not sure. But it________be. A.might B. mustn’t C. can't D. must 5) The man in the office______ be Mr.Black, because he went home just now. A. mustn't B. may not C. can't D.needn't Answers: ACCAC 3.used to练习: 1)她过去常常周末和朋友闲逛。 She_______________ with friends on weekends. 2)他习惯于每天晚上睡得很晚。 He__________________at night. 3)Ken used to be afraid of dogs.(改为一般疑问句) _______________________________ Answers: 1) used to hang out 2) is used to staying up 3) Did Ken use to be afraid of dogs 检测学生是否掌握要点，巩固语言知识。 所有学生 5mins 低
作业三 Read the conversation in 4a and get the main idea, then fill in the blanks with the correct forms of the verbs in brackets and find out the reasons of each blacks. Answers: Have...taken, helped, considered, had...had, took, think, came, trying, wait 继续通过单元话题检测学生是否掌握语言要点，巩固语言知识。 全体学生 2mins 中
作业四 Read the short passage in 4b and choose the main idea. People can do big things to save the earth. Saving the earth begins with small things. Plastic bags should be forbidden(禁止) in stores. Answer: B Fill in the blanks with the approprite modal verbs from the box in 4b and then discuss the answers with partners. Answers: may/might, must/have to, can/should/could, can/could/should/, have to, can/could/should, can/could, can/could, would/can/could. 培养学生从整体上把握语篇；学会通过合作解决问题。 全体学生 5mins 低
发展性作业 Complete the passage with the correct forms of the words. Talent show is one of the most important activities in our school. It 1. ____ (hold) every year. However, when the poster for the show this year came out last week, it 2._____(not pay) attention to. Many students thought it was a waste of time. But our teacher disagreed with us. He said,“We should take the show seriously. You can 3.______ (relax) yourselves through these activities. If no one wants to take part in it, the talent show 4.________ (cancel).” His words sounds reasonable. So many students started to prepare for the show. On the day of the show, everyone was excited. For the whole afternoon, the school hall was filled with laughter and cheers. All of us have been given more energy to study hard through the show. It 5.__________(make) us realize that our stress could 6._______(cut) down by some interesting activities. The talent show is really worth taking part in. Answers： is held 2. wasn’t paid 3. relax 4.will be cancled 5.has made 6. be cut 从句到语篇培养学生在具体语境中运用目标语言。 全体学生 3mins 中
课后 基础性作业 Translate the Chinese into English. 1）现在人们正采取行动保护野生动物。 2）很多人在网上看到了这个视频。(用被动语态) 3)这本书他已经借了2个月了。请叫他尽快归还给我。 4）你一定不要玩火，很危险。 5）James过去学习不努力，但现在很勤奋。 Answers： Now people are taking action to save the wild animals. The video was seen online by many people. He has kept the book for two months/since two months ago. Please ask him to return it to me. You mustn’t play with fire. It’s dangerous. James didn’t use to work hard, but now he is pretty hard-working. 培养学生运用英语思维的能力，区分汉语和英语结构的不同，再次巩固目标语言。 全体学生 3mins 低
发展性作业 Work in groups to discuss more detailed ways to save the earth. e.g reduce the use of air conditioners in summer or grow more plants Use Present progressive, Present perfect , Passive voice, Modal verbs and used to to introduce group ideas to the whole class. 激发学生环保意识，在具体实际生活中运用目标语言。 全体学生 10mins 中

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