1、Lead-in,New words,air,空气,everywhere,处处；到处,alive,活着的,factory,工厂,smoke,烟,dirty,脏的,clean,干净的；洁净的,fresh,清新的,plant,种植,Listen and say,It keeps them high in the sky.,It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it. It is everywhere. It is important to all people. I
2、t is also important to animals and plants. We all need it to keep us alive.,Look at the Kite and the balloon. Look at the plane and the bird. They all need it too. It keeps them high in the sky. What is it?,Ask and answer the questions.,What is it, Jill?,Does it have any colour or taste?,Can you see
3、 or feel it ?,Why is it important?,What is it, Jill?,Its air.,Does it have any colour or taste?,No, it doesnt.,Can you see or feel it ?,We cannot see it, but we can feel it.,Why is it important?,Because we all need it to keep us alive.,Language points,keep 使保持某种(状态、位置或动作等) 这时要在 keep 的宾语后面接补足语，构成复合宾语
4、。其中宾语补足语通常由形容词、副词、介词短语、现在分词和过去分词等充当。 例句：我们应保持教室清洁。 We should keep our classroom clean.,1. It keeps them high in the sky. 它使它们在天空中保持得高高的。,（1）用作动词， 意思是“保存；保留；保持；保守”。 例句：这本书我可以保留几天？ How long can I keep this book?,拓展：keep的其他用法,（2）用作动词， 意思是“遵守；维护”。 例句：我们必须遵守校规。 We must keep the school rules.,（3）用作动词， 意思是
5、“记（日记、帐等）”。 例句：她坚持每天记日记。 She keeps a diary every day.,（4）用作连系动词，构成系表结构：keep表语，意为 “保持，继续（处于某种状态）”，其中表语可以 是形容词、副词、介词短语等。 例句：课堂上请保持安静。 Please keep silent in class.,（1）no在本句中用作形容词，可直接放在名词的前面。 （2）no还可以作副词，是yes的反义词，用在回答问 题的场合，表示“不”的意思。 例句：这座小城市没有公园。 There is no park in the small city.,2. It has no colour
6、or shape. 它没有颜色和形状。,拓展：not 的意思是“不是”，是副词，可以用于修饰动词、形容词。如果名词的前面有a, any, much, many, enough等词，就要用not，不用no。 例句：我们没有水。 We have no water. = We dont have any water.,句型结构：It is important to 对来说它是重要的 例句： 这本书非常有用。它对我来说是重要的。 This book is very useful. It is important to me.,3. It is important to all people. 它对所有
7、人都很重要。,need 既可以作情态动词，也可以作实义动词，在本句中need作实义动词。,4. They all need it too. 它们也都需要它。,need,实义动词,需要,直接跟名词,接动词,need to,需要做,例句：我需要一辆自行车。 I need a bike. 我需要买一辆新自行车。 I need to buy a new bike.,Look and learn,factory,smoke,工厂,烟,dirty,clean,脏的,干净的；洁净的,Say and act,Ben: Whats the matter, Kitty? Are you crying? Kitty
8、: Im not crying. My eyes hurt. Its the smoke. Ben: Where is the smoke from? Kitty: Its from the cars and buses.,1,1,Ben: Look at the black smoke from the factory. It makes the air dirty. Kitty: Lets go to the park, Ben. The air is clean there. Ben: OK.,Kitty: The air is so fresh here. Ben: Yes. Ther
9、e are a lot of trees in the park. Trees keep the air clean. Kitty: We should plant more trees and keep the air clean. Ben: Yes! We should keep our city clean.,2,Complete the notes.,The smoke in the street comes from the _, _and a _. The air is_ in the street. The air is_ and_ in the park. There are
10、a lot of_ in it. Trees keep the air_.,cars,buses,factory,dirty,clean,fresh,trees,clean,Language points,Whats the matter? 常用来询问对方的身体状况、病情或其他不适。如要说明对象，则需要用介词with表示。 例句：你怎么了？ 我感觉不舒服。,5. Whats the matter, Kitty? 怎么了，凯蒂？,Whats the matter with you?,I dont feel well.,拓展：与Whats the matter? 有相同用法的句子还有： Whats
11、 wrong with sth. / sb.? Whats the trouble with sth. / sb.? 注意：wrong是形容词，前面没有 “the”； matter 和 trouble 都是名词，前面应有 “the”。,这是一个祈使句。 建议某人做某事的句型：Lets + 动词原形 + 其他. 其中lets是 let us的缩写形式，后接动词原形，us是人称代词的宾格形式。,6. Lets go to the park, Ben. 让我们去公园吧，本。,常用肯定答语：OK.（好的）/Great.（好极了）/ All right.（好吧） 常用否定答语： Sorry , I等。,
12、例句：让我们去动物园吧，萨姆！ 好极了！,Lets go to the zoo, Sam.,Great !,so既可用作副词，又可用作连词，表示“这样，如此；因此，所以”等意思。 （1）so作连词时，意为“因而，所以；为了，以便”等。 例句：我既高又壮，所以我可以跑得很快。 Im tall and strong, so I can run fast.,7. The air is so fresh here. 这里的空气真清新。,（2）so用作副词，在句中可以修饰形容词或副词，表示 程度，意为“那么，如此；太，很”等。 例句：我太累了。 Im so tired.,Ask and answer,L
13、ook at the pictures. Talk about them with your classmates.,S1: What makes the air dirty? S2: The smoke frommakes the air dirty. S1: What should we do to keep the air clean? S2: We should,Play roles,What makes the air dirty?,The smoke from the cars makes the air dirty.,What should we do to keep the a
14、ir clean?,We should ride bikes to school.,What makes the air dirty?,The smoke from factories makes the air dirty.,What should we do to keep the air clean?,We should plant more trees.,Make and say,Take a piece of cloth.,Tie a piece of string to each corner.,拿一块布。,在每个角系上一根绳。,Bring the four pieces of s
15、tring together and tie them to a small toy.,Throw up the toy in the air.,把玩具扔向空中。,把四根绳放到一起并把它们系到一个小玩具上。,What happens?,The toy moves slowly in the air.,发生了什么？,玩具在空中慢慢地移动。,Think and write,Dear friends, Air is important. It keeps_,_ and _ alive. The air in our city was clean, but now it is dirty. Smoke
16、 from _, _ and _ makes it dirty.,Help Ben and Kitty complete the letter.,people,animals,plants,factories,cars,buses,We should_. We should_. Lets keep the air clean! Ben and Kitty,ride bikes,plant more trees,Learn the sounds,Listen and circle.,1 job shop 2 cheap jeep 3 choose juice 4 skirt shirt 5 chair hair 6 giraffe usually,同学们，这一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的视频开始听写吧！,
