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1、九年级英语上册电子教案Unit 4 Amazing ScienceTopic 3 China is the third nation that sent a person into space.Section A制作人：汪林 审核人：LH教学目标：1.学习定语从句. 2. 培养学生科技无国界的科学理念教学重点和.教学难点：理解定语从句的关系代词所代表的意义。正确地运用关系代词来构成定语从句。课时安排：One period教学步骤：一.自学指导： 1.定语从句在句中做定语，用于修饰句中的某一名词（或代词）。 被定语从句修饰的词叫做“先行词”， 定语从句必须放在先行词之后。 定语从句由关系代词wh
2、o, whom, whose, which, that 和关系副词when, where, why 等引导。定语从句结构：先行词+关系词+定语从句2. All of you must be very proud.你们一定都为此而感到骄傲。 be proud of 为而骄傲 be the pride of 是的骄傲e.g. We are proud of Yang Liwei. Yang Liwei is the pride of us. 3. We have launched another four spaceships in the past few years.在过去几年我国又向太空发射
3、了四艘宇宙飞船。 another four = four more 意为 “又有四个”之意。4.It proves that China has made great progress in its space industry.这证明中国在航空业已经取得了巨大的进步。 prove v.证明，证实 +从句二自学检测:( )1.Half a month _ since I came to Beijing, I miss my students very much.A.have passedB.have pastC.has passedD.has past( )2.It is said that
4、an old man lives on the _ island _.A.alone; aloneB.alone; lonelyC.lonely; lonelyD.lonely; alone( )3.To make our city more beautiful, rubbish _ into the river.A.neednt be thrownB.mustnt be thrownC.cant throwD.may not throw( )4.The baby should _ at home. A.be taken careB.be taken care ofC.take care D.
5、take care of( )5.My son is too fat, so I have to _ his food and drink. A.saveB.limitC.encourageD.affect三教学指导：教师根据自己班级学情进行指导。四 当堂训练：Section B教学目标：1.继续学习定语从句2.掌握本课的重点词汇和短语教学重点和.教学难点：掌握本课的重点词汇和短语，继续学习定语从句课时安排：One period教学步骤：一.自学指导： 1.He wants to know something about recent spaceship developments. devel
6、opment n. 发展 develop v.发展with the development of 随着的发展developing adj.发展中的 developed adj. 发达2. master computer technology掌握电脑科技 3.advise sb. to do sth., 建议某人干某事4.make sb./sth. do,让某人干某事5.made up ones mind 下定决心干某事二自学检测:( )1.Harry Potter and Sorcerers Stone is quite a good book. Its worth _.A. read B.
7、reads C. to readD. reading( )2.Your car _ be put here. Please put it over there.A. cant B. can C. may D. may not( )3.Scientists are doing experiments in order _ the Mars soon.A. to exploreB. exploreC. that exploreD. to exploring( )4.There _ a man-made planet in space.A. will beB.i s going to haveC.
8、has beenD. is( ) 5._ the help of the Internet, news can _ every country of the world.A. Under; arrive B. With; reach C. In; goD. With; get三教学指导：教师根据自己班级学情进行指导。四 当堂训练：根据句意及首字母提示补全单词。1. Hes doing r_ on the causes of cancer.2. The book is b_ on a real story.3. He wouldnt travel with us b_ the border(边境
9、).4. My knowledge of French is pretty b_.5. The weather report says that there will be a strong s_ this afternoon.Section C教学目标：掌握本课的重点词汇和短语，继续学习定语从句教学重点和.教学难点：掌握本课的重点词汇和短语，继续学习定语从句课时安排：One period教学步骤：一.自学指导： 1.There is no doubt that computers are very useful in technology and business.毫无疑问电脑在技术和贸易业
10、都非常有用。 2.For example , tiny computers which are inside patients bodies can keep their hearts beating normally. 例如，病人体内植入微电脑能帮助病人的心脏正常搏动。 3.The whole world is connected.网络连接了全世界。 connect v. 连接 connection n. 关系，联系1.connect A with B 使A与B连接.connect sth. (to sth.) 使电、气、水等接通3.connect sb./sth. (with sb./st
11、h.) 与有联系，把联系起来For instance, if we work on computers too long, we may get headaches or sore eyes.比如：如果我们使用的电脑工作的时间太长，我们就会头昏眼花。 for instance =for example 用来举例说明某一论点或情况，一般只举同类人或物中的“一个”为例。such as 用来列举事物时，一般列举同类人或事物中的几个例子。二自学检测:用所给单词的适当形式填空。1._(science) research should be done carefully.2.He _ (risk) all
12、 his money on a game of cards.3.Many families _ (separate) by the war.4. I _ (hand) the watch in to the police.5.The EU has set strict _ (limit) on levels of pollution.三教学指导：教师根据自己班级学情进行指导。四 当堂训练：1.我们登上火星已经两天了。It _ _ two days _ we landed on Mars.2.随着社会的发展，地球有可能被污染到不适合居住的程度。_ the development of the s
13、ociety, our earth may be too polluted for people to _ _.3.直到亲眼所见我才相信这件事。I _ believe it _ I see it with my own eyes.4.地球在距离太阳数十亿公里的地方旋转。The earth travels around the sun _ _ _ _ billions of kilometers.5.更糟糕的是，我们的水供应很短缺。_ _ _, our water supplies were very low.Section D教学目标：掌握本课的重点词汇和短语，归纳总结定语从句。教学重点和.教
14、学难点：掌握本课的重点词汇和短语，归纳总结定语从句。课时安排：One period教学步骤：一.自学指导： 1. No one knows for certain, but most people think that robots will be part of our lives.没有人清楚，但是大部分人都认为机器人会成为我们生活的一部分。 certain adj. 只作表语确凿的，无疑的，可靠的 只作表语，后跟动词不定式或 of, that一定的，必然的，有把握的，确信的；一定会来到或发生的只作定语某，某一(些)；相当的，一定程度的；一些，有点儿，某种 习惯用语 be certain of 确信，深信 be certain to 必然；一定 be not certain whether. 不能确定是否. for certain 肯定地，确凿地 make
