八年級英語下冊 lesson 13 why are plants important課件 冀教版

1、Lesson13 Why Are Plants Important?,pleasant adj. 使人愉快的shade n. 　樹蔭die v.　　死 (died/died)energy n.　能量heat n.　熱；?。? 加熱bamboo n.　竹子kilogram n. 　千克,New words,Read the text and answer the questions .,1. Wha

2、t are Danny, Jenny and Brian talking about?They are talking about trees and the reason why we need them .2. Donuts don’t grow on trees, do they? No, they don’t. 3.Why do we need trees ?,Clean the air. Give us food

3、.Make and build things with trees .Sit under a tree in the shade.Make books from trees. Many animals live in trees.Cover the soil. Take energy from the sun and make it into food. people and animals need the food

4、 to live.,Reading,Language points,1.It’s pleasant to walk among the trees.1) pleasant 使人愉快的、有趣 pleased 只用于人不用于物，指某人滿足 了自己的愿望而感到高興 I’m very ________you can come. 2)among 一般用于三者或三者以上之中。between 一般 用于兩者之間。 I sit

5、_________Danny ______Jenny.,between,and,pleased,2.Donuts don’t grow on trees! 辨析：on the tree (on trees) 與in the tree (in trees)兩者都表示“在樹上”，用in時一般表示不從屬于樹本身生長的，如鳥、人等。用on時則指樹本身的東西，如樹葉、花等。There are some apples___________.

6、樹上結著一些蘋果。There is a bird__________. 樹上有一只鳥。,on the tree,in the tree,,3.Then the water don’t carry the soil away. carry away把搬（移）走the flood ___________the wooden bridge. 洪水把橋沖走了。[拓展]carry back運回，拿回 carry off輕而易舉

7、地完成 carry out 執(zhí)行 carry forward發(fā)揚，推進,carried away,4.All plants take energy from the sun and make it into food. make …into…把…制成…用于主動語態(tài)，be made into用……制成，用于被動語態(tài)。_______glass____ bottles. 用玻璃制成瓶子。Metals can __

8、_________all kinds of things. 金屬可以制成多種多樣的物品。,Make,into,be made into,專練二. 記住下列詞組的用法:(1) make … into … “把……制成……” be made from “由(原料)制成” be made of “ 由( 原料)制成” be made by 被(某人)制成 be made in 在(某地)制造(2

9、). 選擇填空: 1. We make books ___ trees. A. in B .from C. at D. in,B,2. We can make cotton _______ cloth. A. into B. on C. from D. of The chair is made _____ wood. A. in B. of

10、C. into D. from 4. The bike is made ____ Shanghai. A. of B. into C. from D. in,A,B,D,5.Without food, they would have nothing to eat and they would die. 1)without prep. 無，沒有；反義詞with. 如：Fish can’t live with

11、out water. 沒有水魚不能活。We can’t finish the work on time without your help. 沒有你的幫助我們不會按時完成工作。2) die v. 死，死亡。dead 是形容詞。death 是名詞。 dying是現(xiàn)在分詞。 He ____________for ten years. 他已經(jīng)死了十年了。 Her_______ is very great. 她死的非常壯烈。

12、 The little girl is________. 這個小女孩快要死了。,has been dead,death,dying,Talk about the importance of plants according to the pictures,Clean the air,pleasant,among,give sb. sth.,make,build,with,The weather,In the shade,make…fr

13、om…,live in trees,cover,carry…away…,take energy from…,make…into…,without,would,die,without,would,die,挑戰(zhàn) “記憶”,Retell the text.,Trees help______ the air.They give us ____--like apples,bananas and oranges.We can ____

14、__and _____things with trees—like chairs, beds and houses! We can sit under a tree in the ______.Plants_______ the soil. Then the wind and water don’t _______ the soil_____. All plants take ________ from the sun and make

15、 it into food. People and other animals need the food to______.Without food, they would _______.,clean,,food,make,build,shade,cover,carry,energy,live,die,away,Homework,No cross,No crown!,,Write a passage about why we ne