2018屆九年級英語全冊Unit13We’retryingtosavetheearth第1課時SectionA1a_2d學案.docx

Were trying to save the earth!第一課時Section A(1a2d)【學習目標】1學習并掌握下列單詞：litter，bottom，fisherman，coal，public，ugly，advantage，cost，wooden，plastic2能正確使用以下常用表達：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復習used to 的用法，現(xiàn)在進行時和一般現(xiàn)在時。【學習重點】使用我們所學到的知識來談論污染和環(huán)境保護。【學習難點】說得容易做得難，環(huán)保意識也要宣傳、教育、加強，要注意回收利用變廢為寶，學習歸納前綴、后綴詞匯的構(gòu)成。用多媒體給學生播放一些有關(guān)環(huán)境污染方面的圖片視頻，然后詢問學生對環(huán)境污染的看法和觀點。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.【學法指導】used to(1)used to的意思是“過去經(jīng)?！保渲械膖o是不定式符號，不是介詞，所以其后接動詞原形(不接動名詞)。如：He used to live in Paris.他過去一直住在巴黎。(2)used to 與 be used to的用法比較used to 意為“過去經(jīng)?！保渲械?to 是不定式符號，后接動詞原形。如：He used to live in Paris.他過去一直住在巴黎。be used to 意為“習慣于”，其中的to是介詞，后接動名詞。如：He is used to living in the country.他已習慣于住在鄉(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壽方面起著非常大的作用。be good for 對有好處 be good to 對好/ 和善 be good at 擅長情景導入生成問題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自學互研生成能力Task 1Lets read new words and the phrases.1I can read.(我會讀)預習下列單詞和短語，爭取自己能正確拼讀。拼讀成功后再在課文中把單詞和短語標記出來。litter，bottom，fisherman，coal，public，ugly，advantage，cost，wooden，plastic，takeaway，bin2I can write.(我會寫)翻譯下列短語：(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.(我會總結(jié))幾個代詞的用法：one：泛指，指前面提到過的那類人或事情，指代可數(shù)名詞，其復數(shù)形式用ones; that：特指，指前面提到過的那類物，指代不可數(shù)名詞。如：The weather in Kunming is better than that in Wuhan.；it：特指，指前面提到過的那個物，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.(我會練)根據(jù)漢語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)這個城鎮(zhèn)的每個人都應該參與到清掃它當中來。Everyone in this town should play a part in cleaning it up!(3)為了減輕污染，我們應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.(我會編對話)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.(我會總結(jié))take，spend，pay和cost都可以表示“花費”，但它們的用法各有不同。(1)take多表示花費時間，常用于It takes sb.some time to do sth.這一句型中，其中it作形式主語。(2)spend多表示花費時間和金錢，主語通常是人，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多表示花費金錢，主語通常是人，常用于sb.pay(s) some money for sth.句型。 (4)cost多表示花費金錢，主語通常是物，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”【學法指導】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“沒用的東西(被扔或?qū)⒁獊G棄的無用的東西)”不可回收。litter指“(室內(nèi)或公共場所)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.當堂演練達成目標一、詞匯練習。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)用括號內(nèi)所給單詞的適當形式填空。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