Unit 6 Section A-1.ppt

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1、Unit6Whenwasitinvented?SectionA（1a-2d）课前预习lightbulbWhenweretheyinvented?Whatisitcalled?bikemicrowaveovenalarmclock课前预习A:Whenwasthetelephoneinvented?B:Well,Ithinkitwasinventedin….1885187619271971课前预习A:Whenwasthelaptopinvented?B:Well,Ithinkitwasinventedin….1985198619821981课前预习A:Whenwasthecame

2、rainvented?B:Well,Ithinkitwasinventedin….18351837184218391aLookatthethingsbelow.Inwhatordersdoyouthinktheywereinvented?Numberthem[1-4]Practice1b.Listenandmatchtheinventionswiththeyears.______1876______1885______1927______1971dacbPractice______Shoeswithspecialheels_______shoeswithlights______

3、_icecreamscooprunsonelectricity2a.Listenandnumbertheinventionsintheorder.312Practice2b.Listenagainandcompletethechartbelow.changinginthedarkservingPractice课文解析1.Theyareusedfor…他们被用来……beusedfordoingsth.表示“被用来做某事”。与beusedtodosth.同义。表示用途、目的。例：Thiscomputerisusedtocontrolallthemachines.这台电脑是用来控制所

4、有机器的。Doyouknowwhatthistoolisusedfor?你知道这个工具是用来做什么的?课文解析2.Thinkabouthowoftenit’susedinourdailylives.想想在我们的日常生活中会多么频繁地使用它。thinkabout表示“考虑，想起”。例：Heisthinkingabouttravellinginthesummerholidays.他正在考虑暑假旅游的事。Shewasthinkingaboutherchildhooddays.她正回想她的童年时期。知识拓展【拓展有关think的短语】（1）thinkof指“考虑,记忆,记起”例：You

5、thinkofeverything!你全都想到了。Ican’tthinkofhisnameatthemoment.我一时想不起他的名字。（2）thinksth.over指“仔细想,审慎思考,作进一步考虑”。例：PleasethinkoverwhatIsaid.请仔细考虑我说的话。Iwanttothinkitover.我想仔细考虑一下这件事。知识拓展（3）thinksth.out指“想通,想出,熟思”。例：Hethoughtoutanewidea.他想出了一个新主意。Thatwantsthinkingout.那件事需要仔细考虑。知识拓展3.Well,youdoseemtohave

6、apoint…嗯,看来你说的确实有点道理…haveapoint有道理例：Youhaveapoint.we’dbetterdosomeexercisetokeephealthy.你说的对，我们最好锻炼来保持健康。课文解析THEENDTHANKS