八年级英语下册：Chapter 2 Pollution Fighters学案（上海牛津版）

Chapter 2 Pollution Fighters 一 Learning aims 1 通过阅读 了解树木对于环境的作用 2 学会查阅书籍的目录 二 Main phrases Words chemical communicate nasty natural oxygen pure release hectare suppose warn hardly sip Phrases 1 average ages 平均年龄 2 magnolia trees 白玉兰树 3 sweet smelling flowers 气味芬芳的花朵 4 be known as 被誉为 5 collect some facts for 为 收集一些事实材料 6 a class project on pollution 一个有关污染的班级实践项目 7 interview sb about sth 就有关 采访某人 8 be interested in doing sth 对 感兴趣 9 living things 生物 10 make less noisy 减少 的噪音 11 on the end of 在 顶端 12 sip a Coke 小口地喝些可乐 13 breathe pure air 呼吸纯净的空气 14 thank for doing sth 为 而感谢某人 15 natural air conditioners 天然空调 16 harmful gas 有害气体 17 take from 把 从 中拿走 18 release into 释放 进入 19 one and a half hectares of trees 一公顷半的树林 20 produce enough oxygen 产生足够的氧气 21 keep alive 使 存活 22 as well as 也 同样 23 for example 例如 24 warn sb not to do sth 告戒某人 不要 做某事 25 warn sb of sth 预告 预先通知某人某事 26 protect oneself by doing sth 通过 保护自己 27 produce a chemical 产生一种化学物质 28 make do sth 使某人做某事 29 taste nasty 尝起来令人作呕的 30 join together 把 连在一起 31 pass around 传递 32 communicate with sb 和 交流 交际 33 one another each other 互相 34 in danger 处于危险中 35 hardly any almost no 几乎没有 36 our best fighters against pollution 我们最好的反污染卫士 Sentence patterns 1 Trees cool the air as well as clean it 2 They make streets more beautiful and less noisy 3 Trees are communicating with one another 三 Language points 1 on earth in the world 在世界上 on the earth 在地球上 2 living a alive now 有生命的 作定语 e g He s the world s most famous living artist 他是世界上最著名的仍然健在的艺术 家 alive a living not dead 活着的 做表语 e g I didn t know if he was alive or dead 我不知道他是死是活 3 make sb sth to be or become sth make n adj 使某人或某物变得 e g The news made him very happy 这条消息使他很高兴 make sb sth do sth 让某人做某事 e g My mother made me wash the dishes after dinner 妈妈让我吃饭后洗衣服 be made of 由 制成 看得出原材料 be made from 由 制成 看不出原材料 be made in 在 制成 4 less adi 原级 位于形容词或副词前与 more 形容词或副词及加 er 构成的比较级意 思相反 noisy a noisily adv 5 at the end of 在 的尽头 at the beginning of 在 的 开始 6 breathe v to take air into your lungs and send it out again through your nose or mouth breathe in 吸入 breathe out 呼出 breath n 呼吸的空气 7 keep sb sth adj 使 保持某种状态 e g An air conditioner can kept the room clean Keep 可作系动词 后面直接加形容词 四 Exercises I Choose the best answer 1 The teacher often asks us carefully during the class A listen B to listen C listening D listened 2 After having his meal Jack continued computer games A plays B to play C playing D played 3 Mrs Li goes to her son from school every afternoon A meet B see C visit D collect 4 If it tomorrow we will have a picnic A not rain B won t rain C doesn t rain D isn t rain 5 I the hobby group three months ago and I the meeting every Monday A took part in join B entered for take part in C joined attend D attended enter 6 May is keen on A dance B danced C dancing D to dance 7 It s too cold outside please your coat A put on B wear C putting on D wearing 8 Jenny enjoys A go fishing B going fishing C to go fishing D goes fishing 9 Yesterday I went to school a taxi because I got up late A by B on C with D in 10 Trees can protect themselves producing a chemical A from B by C of D for II Translate the following phrases into English 1 对 感兴趣 2 树木有什么好处 3 释放氧气到空气里 4 在危险中 5 从空气中除去有还气体 6 喝口咖啡 7 把 连在一起 8 互相交流 9 对付污染 10 砍倒 III Translate the following phrases into English 1 警方正在用无线电联系 2 农民用一种化学产品杀灭田里的害虫 3 律师要求警方立即释放他的客户 4 这个新的公园战地 60 公顷 5 我必须警告你不要出去 暴风雨要来了 IV Rewrite the sentences as required 1 They are old but they are still work in the field 保持原句意思 they are old they still work in the field 2 Trees produce enough oxygen to clean the air 保持原句意思 Trees clean the air by enough oxygen 3 Tom spent half a month painting his hous