新广州版英语初二上_U3_computers教案讲义与练习

U3 computers一．日积月累：1、stop doing 停止正在做的事stop to do 停止正在做的事去做某事stop sb from doing 阻止某人做……2、Thank you for your time. 感谢大家抽出宝贵的时间。

3、advice [U] n. 建议give advice on 就……给出建议advise v. 建议advise sb. to do sth. 建议某人做某事suggest 都可接动名词作宾语（不能用to do）I suggested putting off the sports meet. 我建议将运动会延期.4、in the past 在过去in future是从今以后，往后的日子里。

是指从说话时间起以后的时间里in the future 未来，将来。

指离说话时间很长一段时间后二．回顾测评：单项选择1.–What should we do now, Mr. Black?–Please turn to Page __________and look at the __________ picture.A. Twelve, fifthB. Twelfth, fifthC. Twelve, fiveD. Twelfth, five2.There are ___________ in our classroom.A. hundred of booksB. the hundreds of booksC. hundreds of booksD. hundred of book3.In figures (数字)，a million is ___________.A. 10,000B. 100,000C. 1,000,000D. 100,000,0004.There are __________ of students in our school but only ___________ of them are boys.A. hundreds, two hundredB. hundred, two hundredsC. hundreds, two hundredsD. hundred, two hundred5.The road is over __________ meters long.A. six hundred and fifty-twoB. six hundreds and fifty-twoC. six hundred, fifty-twoD. six hundred, fifty and two6._________ plus seven is thirteen.A. FiveB. SixC. EightD. Nine7.The boy has ________ model planes.A. two hundreds and fifty-fiveB. two hundreds fifty-fiveC. two hundred and fifty-fiveD. two hundred fifty-five8.I’d like _______, please.A. two bottles of orangeB. two bottle of orangesC. two bottles of orangesD. two hundred fifty-five9.We’re the students of __________.A. Grade ThreeB. Three GradeC. the Grade ThreeD. the Three Grade10.David ran _________ in the 500 meters race.A.oneB. the oneC. firstD. the firstComputersComputers are useful machines. They can help people __1__ in their daily life. For example, they can help people save time and work out many problems__2__.Today more and more families own computers. Parents buy computers __3__ their children. They hope computers can help their children improve (提高) their studies. Yet __4__ children use computers to play games or watch films instead of __5__ their subjects. So, many teachers and parents complain that computers can’t help children study but __6__ them fall behind. So parents always put away the computers and ask __7__ children to study hard.In some countries, even some scientists __8__ hate computers. They say computers make __9__ people lose their jobs and bring them a lot of trouble. Will computers really bring trouble to people or can they bring people __10__? It’s up to people themselves.( )1.A. lot of B.lots of C.a lot D.a lot of( )2. A.easy B. easier C.easiest D.easily( )3. A. on B.for C. to D.in( )4. A.too many B.too much C.many too D.much too( )5. A. study B.to study C. studying D.studied( )6. A.makes B.making C.make D.to make( )7. A.they B.their C.them D.themselves( )8. A.also B.too C.in D.with( )9. A. million lions lion of lions of( )10. A.happy B.happily C.happiness D.happier三．内容呈现：1.教学重点：熟练掌握比较级和最高级的用法。

2.教学难点：1）对本单元重点词汇和短语的识记和理解。

2）对练习的错题进行分析和归纳。

3.教学内容：(1)课内知识：1、order 订购n. V.The factory has recevied an order for 2,000 machine tools. 该工作收到一笔2000台机床的订单。

They have ordered 1,000 oil pumps from our factory. 他们已向我厂订购了1000台油泵。

2、compare v 比较；对比If you compare both of our cars,you’ll find them very much alike. 如果你把我俩的轿车比较一下，就会发现它们很相似。

1）表示“把……与……比较”，通常用compare …with…，也可以用compare …to…或compare …and…。

如：If you his work with/ and/ to hers, you’ll find hers is much better.要是把他俩的工作比较一下，就会发现她的要好得多。

2)表示“把……比作……”，通常用compare …to…。

如：Shakespeare the world a stage. 莎士比亚把世界比作舞台。

3）表示“比得上，能与……媲美”，通常用compare with 或compare to。

My English can’t with/to his. 我的英语不能与他相比。

3、monitor n. 显示器；班长The is 22 inches. 这台显示器是22英寸的。

We all made Linda of our class. 我们都选琳达做我们班的班长。

4、speaker 扬声器n 演讲者nkeyboard 键盘n mouse 鼠标n main unit 主机n5、type 打字nUse the keyboard to in the channel number. 用键盘键入频道号。

typist 打字员n typewriter 打字员n6、brain 大脑n 智力nintelligence 智力nShe suffered serious damage in a car accident. 他出了车祸，脑部受了重伤。

She has a very quick and learns fast. 她头脑灵活，学得很快。

7、control 控制n v短语组合：lose control of sth 失去对……的控制under control of 得到控制out of control 失去控制in control of sth 掌控；控制The enemy managed to take of the city. 敌人成功控制了这座城市。

8、expensive 昂贵的；价格高的adjI can’t afford such an toy. 我买不起这么贵的玩具。

近义词：dear 昂贵的反义词：cheap 便宜的inexpensive不贵的；便宜的9、tiny 极小的；微小的adjThough she was ，she had a very loud voice. 她虽然个头小，嗓音却非常洪亮。

反义词：huge10、depend 依靠；依赖vdepend on 依靠；依赖I’ll never anyone again. 我再也不会依赖任何人。

11、speed 速度nHe drove off at hight speed. 他驱车飞驰而去。

at a fast speed 以更快的速度12、calulate 计算vcalculator 计算机n calculation 计算n13、operate 操作vShe operates the lift. 她是开电梯的。