初中英语鲁教版 (五四制)九年级全册Section A学案

               课题：Unit 8 We’re trying to save the earth!

                    第一课时  Section A(1a-3b)

学习目标：

1、重点单词

litter(v.)乱扔/(n.)垃圾；废弃物；bottom(n.)底部；最下部；fisherman(n.)渔民；钓鱼的人；coal(n.)煤；煤块；ugly(adj.)丑陋的；难看的；advantage(n.)优点；有利条件；cost(v.)花费/(n.)花费；价钱；wooden(adj.)木制的；木头的；plastic(adj.)塑料的/(n.)塑料；塑胶；cruel(adj.)残酷的；残忍的；harmful (adj.)有害的；industry(n.)工业；行业；law(n.)法律；法规；scientific(adj.)科学上的；科学的

2、重点词组

at the bottom of 在……底部；在……最下部； be full of 充满……； throw ...into把……

进……；play a part 起作用； cut down 减少；make a difference产生影响； be harmful to

对……有害； at the top of在……顶部或顶端

3、重点句式

(1) Everyone in town should play a part in cleaning it up.

城里的每个人都应当在把它清理干净方面起作用。

(2)The air is badly polluted because there are too many cars on the road these days.

空气被严重污染因为如今路上的车太多了。

(3)To cut down air pollution, we should take the bus or subway instead of driving.

为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。

(4)I used to be able to see stars in the sky.

我过去能看到天空中星星。

(5)This method is not only cruel, but also harmful to the environment.

这种方法不仅残酷，而且对环境有害。

(6)The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.

在最近的20年到30年的时间里，一些种类的鲨鱼数量已经下降了90%多。

重难点：

1).本课时词汇及听力部分的相关任务；

2).2d和2b的文本解读及相关任务。

导学设计：

1. cost

【归纳】① cost作动词，意为“_____”。指花费金钱，主语通常是物。cost的过去式和过去分词均为____。例如：新电脑花了多少钱？How much did the new computer cost?

② take, spend, pay, cost 辨析

take，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。

【现学现练】

根据句意用take, spend, pay或cost的适当形式填空

1). That new car ________ them lots of money.

2). Mona __________ 50 yuan on the books just now.

3). It usually _______  me an hour to do my homework.

4). You should __________  some time practicing your pronunciation.

5). My brother _______ 6, 000 yuan for the new computer yesterday.

2. This method is not only cruel, but also harmful to the environment.

这种方法不仅残酷，而且对环境有害。

【归纳】① not only…but also…意为“_____”，用于连接两个表示____关系的成分，着重强调后者，其中的also有时可以省略。例如：她不仅很会演奏，而且还会作曲。She not only plays well, but also writes music. 

②若连接两个成分作主语，其谓语通常与靠近的主语保持一致。例如：不只是你，他也得离开。Not only you but also he ____ to leave.

③若连接两个句子，not only后面的句子要用倒装，例如：他不仅说得更正确，而且讲得更不费劲了Not only ____ he speak more correctly, but he spoke more easily. 

④ be harmful to 意为“_____” 。例如： 吸烟有害健康。Smoking is harmful to the health. 

知识巩固:

Ⅰ.用所给词的适当形式填空

1. We’re trying _______ (save) the earth.

2. There used to_____ (be) clean and beautiful.

3. There are too many ______ for ________to catch (fish).

4. It’s bad for environment to use _________ (wood) chopsticks.

5.Mike missed the chair and fell down.Luckily, he was not _____(bad) hurt.

Ⅱ.单项选择

1. We shouldn't          trees because trees are important for environmental protection.

A. cut off　　B. cut in    C. cut down  D. cut up

2.You'd better ride a bike to go to school             driving the car every day.

A. out of  B. instead of     C. thanks to  D. because of

3. Her rich experience gave her a(n)          when looking for a good job.

A. condition  B. idea      C. clever  D. advantage

4.—This dress looks beautiful on you.How much is it?

—It          me more than five hundred yuan.

A. spent  B. paid    C. took  D. cost

5. Jason        enjoy playing games on the Internet, but now he loves playing soccer.

A. got used to  B. used to    C. was used to  D. is used to

6.Lions are _____ the food chain in the world.

 A.at the top of                  B.on the top

 C.strongest                      D.in the top of

7.The number of animals in the world ______ in the last 20 to 30 years.

 A.have fallen                    B.has fallen

 C.are falling                     D.is falling

8.Many animals are in danger ______ tigers, pandas and so on.

 A.for example                  B.because of

 C.such as                      D.as result

9.China has a law to stop the _____ of some animals.

 A.sell          B.sale            C.sold             D.disappear

10.People ______ the sharks’ fins and throw the sharks into the ocean.

 A.cut up      B.cut down         C.cut off         D.cut into

Ⅲ.根据对话内容，从方框中选择恰当的选项补全对话，其中有两项多余

A: Hi, Zhang Hua, did you watch the 9 o'clock program on CCTV1 last night?

B: No. 1._____

A: Environmental protection. 2._____

B: What can we do?

A: 3. _____ After washing something, we can use the water to do something else.

B: I agree with you.Also we must stop factories from pouring waste water into rivers and lakes. 4._____

A: You're right.Besides, we shouldn't use plastic bags either.

B: Good idea.What else can we do?

A: 5. _____．Making paper takes too many trees.

B: Right.We should process waste paper so that it can be used again.

参考答案

导学设计

1.①花费,cost② 【现学现练】1).cost 2).spent 3).takes 4).spend 5).paid

2.①不仅……而且……，并列②has ③did ④ 对……有害

知识巩固

Ⅰ.1.to save 2.be 3. fish,  fishermen 4.wooden 5.badly

Ⅱ.1-5 CBDDB  6-10 ABCBC

Ⅲ. 1-5 EGFAD