2018屆九年級(jí)英語(yǔ)全冊(cè)Unit13We’retryingtosavetheearth第1課時(shí)SectionA1a_2d學(xué)案.docx

Were trying to save the earth!第一課時(shí)Section A(1a2d)【學(xué)習(xí)目標(biāo)】1學(xué)習(xí)并掌握下列單詞：litter，bottom，fisherman，coal，public，ugly，advantage，cost，wooden，plastic2能正確使用以下常用表達(dá)：the bottom of，be full of，used to do sth.，play a part in doing sth.，clean it up，be badly polluted，too much rubbish and waste，turninto等等3復(fù)習(xí)used to 的用法，現(xiàn)在進(jìn)行時(shí)和一般現(xiàn)在時(shí)?！緦W(xué)習(xí)重點(diǎn)】使用我們所學(xué)到的知識(shí)來(lái)談?wù)撐廴竞铜h(huán)境保護(hù)。【學(xué)習(xí)難點(diǎn)】說(shuō)得容易做得難，環(huán)保意識(shí)也要宣傳、教育、加強(qiáng)，要注意回收利用變廢為寶，學(xué)習(xí)歸納前綴、后綴詞匯的構(gòu)成。用多媒體給學(xué)生播放一些有關(guān)環(huán)境污染方面的圖片視頻，然后詢問(wèn)學(xué)生對(duì)環(huán)境污染的看法和觀點(diǎn)。Task 1Preview the words on P9798，read the words by phonetic symbols and mark the new words in the text.Finally finish the tasks in 1a.【學(xué)法指導(dǎo)】used to(1)used to的意思是“過(guò)去經(jīng)?！?，其中的to是不定式符號(hào)，不是介詞，所以其后接動(dòng)詞原形(不接動(dòng)名詞)。如：He used to live in Paris.他過(guò)去一直住在巴黎。(2)used to 與 be used to的用法比較used to 意為“過(guò)去經(jīng)常”，其中的 to 是不定式符號(hào)，后接動(dòng)詞原形。如：He used to live in Paris.他過(guò)去一直住在巴黎。be used to 意為“習(xí)慣于”，其中的to是介詞，后接動(dòng)名詞。如：He is used to living in the country.他已習(xí)慣于住在鄉(xiāng)下。play a part in 在方面起作用。如：A good diet plays a large part in helping people live longer.健康的飲食在幫助人們長(zhǎng)壽方面起著非常大的作用。be good for 對(duì)有好處 be good to 對(duì)好/ 和善 be good at 擅長(zhǎng)情景導(dǎo)入生成問(wèn)題Teacher ：What kinds of pollution do you know ? What do you feel about the pollution?Students : I think there are _.(1) noise pollution；(2) air pollution；(3)water pollution自學(xué)互研生成能力Task 1Lets read new words and the phrases.1I can read.(我會(huì)讀)預(yù)習(xí)下列單詞和短語(yǔ)，爭(zhēng)取自己能正確拼讀。拼讀成功后再在課文中把單詞和短語(yǔ)標(biāo)記出來(lái)。litter，bottom，fisherman，coal，public，ugly，advantage，cost，wooden，plastic，takeaway，bin2I can write.(我會(huì)寫)翻譯下列短語(yǔ)：(1)在河床底部at_the_bottom_of_the_river(2)充滿了垃圾be_full_of_rubbish(3)把垃圾扔入河中throw_litter_into_the_river(4)盡一份力把它清理干凈play_a_part_in_cleaning_it_up(5)土地污染land_pollution(6)產(chǎn)生影響make_a_difference3I can summarize.(我會(huì)總結(jié))幾個(gè)代詞的用法：one：泛指，指前面提到過(guò)的那類人或事情，指代可數(shù)名詞，其復(fù)數(shù)形式用ones; that：特指，指前面提到過(guò)的那類物，指代不可數(shù)名詞。如：The weather in Kunming is better than that in Wuhan.；it：特指，指前面提到過(guò)的那個(gè)物，用于指可數(shù)名詞單數(shù)或者不可數(shù)名詞。如：I have a pen，my uncle gave it to me.Task 2Lets listen to the tape and finish 1b，2a，2b.Task 3Lets make conversations and interview.1I can practice.(我會(huì)練)根據(jù)漢語(yǔ)提示完成下面的句子，每空一詞(1)甚至在河的底部也充滿了垃圾。Even the bottom of the river is full of rubbish.(2)這個(gè)城鎮(zhèn)的每個(gè)人都應(yīng)該參與到清掃它當(dāng)中來(lái)。Everyone in this town should play a part in cleaning it up!(3)為了減輕污染，我們應(yīng)該乘坐公交車或者地鐵而不是開車。To cut down air pollution，we should take the bus or subway instead of driving.2I can make conversations.(我會(huì)編對(duì)話)Roleplay conversations between Jason and Susan.Jason: The air has become really polluted around here.Im getting very worried.Susan: Yes，I used to be able to see stars in the sky.Jason: The problem is that3I can summarize.(我會(huì)總結(jié))take，spend，pay和cost都可以表示“花費(fèi)”，但它們的用法各有不同。(1)take多表示花費(fèi)時(shí)間，常用于It takes sb.some time to do sth.這一句型中，其中it作形式主語(yǔ)。(2)spend多表示花費(fèi)時(shí)間和金錢，主語(yǔ)通常是人，常用于sb.spend(s) some time/money on sth.和sb.spend(s) some time/money (in) doing sth.兩種句型。(3)pay多表示花費(fèi)金錢，主語(yǔ)通常是人，常用于sb.pay(s) some money for sth.句型。 (4)cost多表示花費(fèi)金錢，主語(yǔ)通常是物，常用于sth.cost(s) (sb.) some money.句型。Task 21Listen to the tape and finish the listening tasks in 1b.Then students listen again and repeat.2Students listen to the tape and finish the listening tasks in 2a，2b.Then listen again and repeat.Task 3Read the contents in 1c and 2c，and finish the tasks in 1c and 2c.Students need imitate listening and have a conversation practice with your partner with the phrase: “used to”【學(xué)法指導(dǎo)】Were trying to save the earth! 我們正在竭盡全力拯救地球！try to do try ones best to do 努力去做某事。Even the bottom of the river was full of rubbish. Yes，but people are throwing litter into the river.litter和rubbish都可指“垃圾”，用作不可數(shù)名詞。rubbish指“沒(méi)用的東西(被扔或?qū)⒁獊G棄的無(wú)用的東西)”不可回收。litter指“(室內(nèi)或公共場(chǎng)所)亂扔的廢物(紙屑、不要的包裝紙、廢瓶等)”還可回收。如：Throw the rubbish out.把垃圾扔出去。Pick up your litter after a picnic.野餐后將廢棄物收拾好。 【備注】交流展示生成新知Preshow：Show in groups.(Time: six minutes)Task 1：First，the students read the words and phrases in groups.Then, read together and sum up the usage of the words in groups，mark the difficult points.(they can ask the teacher for help)2The English teacher asks students to turn to P9798 and read the contents quickly，then translate the phrases in “I can write” in Task 1 in groups.Finally，check the answers.3Students try to summarize the usage of “one，ones，it，that” by looking through 2b and 2d in the textbook in groups.Task 2：1.The teacher plays the tape for the first time and then students fill the blank in 1b according the listening contents.Next，ask two or three students to read out their answers in groups.2Students turn to P98.Then，the teacher plays the tape twice to finish the listening tasks in 2a，2b.Next，the group leader checks their group members answers and discuss them.Task 3：1.First，ss discuss and check the answers in Task 3.Then, set scenes to perform the conversions.Then，sum up the usage of the key words.2Then discuss and set scenes to roleplay conversations between Jason and Susan in groups.3.Students may try to summarize the usage of “take，spend，pay and cost”by previewing and learning by themselves.Improve by showing: Class show.(Time：sixteen minutes)Task 1: 1.I can read.(1)Read together，pay attention to the pronunciation of “bottom” “fisherman” and “advantage”；(2)Sum up and explain some different kinds of pollution；(3)Consolidate the words learning by word games.2I can write.(1)Students translate the phrases into English by answering quickly; (2)Read together；(3)Spot test ：consolidate the usage of phrases by making sentences.3I can summarize. (1) Students sum up the usage of “one，ones，that and it”；(2)Students consolidate the usage of them by exercises.And check the answers and explain.Task 2: Students close the listening materials in the textbooks and use the information in 2a and 2b to roleplay conversations between Jason and Susan in class.The teacher may judge which group is the best.當(dāng)堂演練達(dá)成目標(biāo)一、詞匯練習(xí)。A)根據(jù)句意及首字母提示填寫單詞。1We can clearly see fish swimming at the bottom of the river.2The girl seldom goes outside because of an ugly scar(傷疤) on her face.3We should use cloth bags instead of paper or plastic bags.4The villagers used to burn coal to get warm.5Dont litter waste things everywhere.B)用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空。6There is a wooden(wood) table in the middle of the room.7There used to be many fishermen(fisherman) in the village.8I didnt buy the c