Unit 4 Amazing Science Topic 3 SectionC 课件2025-2026学年 仁爱科普版（2012）九年级英语上册

Unit 4 Amazing Science Topic 3 China is the third nation that sent a person into space. Section C Learning aims 一、掌握以下单词：entertainment, doubt, tiny, inside等。 二、通过阅读进一步了解计算机在不同领域的使用。 三、能够根据不同的阅读目的运用阅读策略获取信息，如预测、寻找主 旨句、略读、寻读等，培养“读”的语言能力。 Review 【4.2B】 We know that Kangkang wants to be ______________ when he grows up. However, Maria thinks that he should first. an astronaut master some basic computer skills Review 【4.3B】 We also know that Kangkang _________________ computer technology. So Mr. Brown _______ him to find new ways to make computers _______ us better. know little about advises serve Brainstorm Can you list some places (where computers are used)? There is no doubt that computers play an important part in our daily life. Fast-reading [Task 1] Find out the topic sentence of each paragraph. [Task 2] The structure of the text is __. [Task 3] The main idea of the text is __. [1] 【Task 1】 [2] [3] ①总述：电脑两个作用 ②分述：举例说明作用 作用1： 作用2： for work for fun ③总述：有用但有缺点 👇 正确使用 【Task 2】 the main idea of the passage ___________________________ The importance of computers 【Task 3】 Careful-reading 1b Complete the following diagram. computers usage problem work daily life ______________________________________ of a spaceship. help doctors _____________________________. _______________________________ in factories. help businessmen _____________________________________. play games and __________________________. _______________ and _________________ at home. ___________________ by sending e-mails and ________________. get headaches or _____________________. don’t have enough time __________________. something on the Internet is not ________________. control the speed and direction find diseases easily control the robots place and cancel orders watch movies do shopping do business communicate chatting online sore eyes to study or exercise true or good 1a Listen, look and say. [1] [2] [3] Post-reading Find out the attributive clause in 1a and translate them. 1. For example, tiny computers (which are inside patients' bodies) can keep their hearts beating normally. 2. In factories, robots are controlled by computers (that are like human brains). 3. They can do work (that is dangerous to humans). 4. More and more people have personal computers (that are used to play games and watch movies). 5. Besides, not everything (we read on the Internet) is true or good for us. Post-reading Retell 1a according to the mind map. computers usage problem work daily life 1. games/movies 2. shopping/business 3. communicate 1. head/eyes 2. study/exercise (no time) 3. not true or good 1. in space 2. in hospitals 3. in factories 4. in business 2 Write a short passage with the title with One Day Without Computers. The following information may help you. Suppose you were on a special day in 2030. During the day, there were no computers in the world. What trouble would you have? One Day Without Computers Today, when I got up, I just turned on the computer as usual, but it didn’t work. Then I tried my brother’s PC, my parents’, even my dog’s, but none of them worked. Later, it was reported on TV that all of the computers in the world broke down today… One Day Without Computers Today, when I got up, I just turned on the computer as usual, but it didn’t work. Then I tried my brother’s PC, my parents’, even my dog’s, but none of them worked. Later, it was reported on TV that all of the computers in the world broke down today. So the world is quite different. For instance, we can’t play games, watch movies or do shopping at home. Besides, we can’t communicate by sending e-mails or chatting online. Without the help of computers, businessmen can’t place or cancel orders online. Teachers can’t give lessons to their students. What’s worse, robots controlled by computers can’t do dangerous work for humans. Even the doctors can’t find the diseases easily. In short, we almost have trouble with everything without computers today. Project Nowadays, smartphones as well as computers play an important part in our daily life. However, many students lose themselves in them. What do you think of using smartphones among the students? Project Write a composition based on your mind-map. beginning summary body The Importance of Smartphones importance usage problems importance+use properly The Importance of Smartphones There is no doubt that smartphones play an important part in our daily life. Then let me introduce it to you. 毫无疑问，智能手机在我们的日常生活中扮演着重要的角色。接着让我给你介绍一下。 As we all know, cellphones are very useful in many areas of work and leisure. // On the one hand, phones are used to control our houses at home. For example, we can use them to turn on the lights or close the door. In business, it's easier for people to communicate with each other. If they have trouble working, they can solve some problems in time by face-to-face chatting.// On the other hand, more and more phones are used for entertainment, such as watching movies, listening to music and playing games etc. Besides, it's convenient for us to do shopping or do business at home. People just need to place or cancel orders on their phones. 众所周知，手机在工作和休闲的许多领域都很有用。// 一方面，电话在家里被用来控制我们的房子。例如，我们可以用它们来开灯或关门。在商业中，人们更容易相互沟通。如果他们在工作中遇到困难，他们可以通过面对面的聊天及时解决一些问题。// 另一方面，越来越多的手机用于娱乐，如看电影，听音乐和玩游戏等。此外，在家里购物或做生意也很方便。人们只需要在手机上下单或取消订单。// 第二段结构——总分 Every coin has both sides. If we work on phones too long, we may get headaches or sore eyes. Even though there are also some disadvantages of mobile phones, it mainly depends on how to use them properly. 任何事物都有两面性。如果我们在手机上工作太长时间，我们可能会头痛或眼睛酸痛。尽管手机也有一些缺点，但这主要取决于如何正确使用它们。 【注意】缺点不能过多赘述，否则会导致与文章大意相违背。 We learn: We can: Summary 1. Some words: doubt, tiny, inside, brain, cancel, connect ... 2. Some phrases: There is no doubt that, for instance ... 3. Some sentences: (1) There is no doubt that computers are very useful in technology and business. (2) Computers help us at work and at home, but they must be used properly. 1. Talk about the importance of computers. 2. Write a composition by using our imagination. Thank you ! 135476.42 $