九年级英语上册《unit 4 amazing science topic 2 when was it invented section c》学案 仁爱湘教版

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1、九年级英语上册《Unit4AmazingScienceTopic2WhenwasitinventedSectionC》学案（无答案）学习目标：1.了解机器人将给人类带来的益处和害处。2．培养科学探索精神，讨论怎样使机器人更好地服务于人类。课前预习：1．课前复习：任选一例，编写对话。ComputerInvent/inAmerica/in1946ShenzhouⅨLaunch/inChina/in2012CloningExperiment/Dolly/DNAA：_________________________?B:_________________________A:___

2、______________________?B:__________________________2.查找有关机器人在现代社会中发展的资料，读1a，试着完成下列的句子并翻译。1）Nooneknows____________whatourfuturewill____________.2）Mostpeoplethinkrobots___________________ourlives.3）Robotsworkforus___________allthetimewithout_______anyproblemssofar.4）People________________th

3、erapiddevelopmentofrobots.5）Ifrobotscanthinkandact___________,theymight____________wanttobeour_______,butour_______,theymight_____us_____wenowtreatourpets.6）Perhapstherewillbeawar_______humanbeings_____robotsinafewyears.知识点导学：1.Nooneknowsforcertain,butmostpeoplethinkthatrobotswillbepartof

4、ourlives.1）noone和none都表否定。noone用来指人，其后不能接of短语做主语，谓语用_____数。None既可指人也可指物，其后常接短语（noneof+名词/代词）做主语，当of后是可数名词复数时，谓语动词用单、复数均可。Eg:________knowstheanswer.________ofyouknow/knowstheanswer.2)forcertain确切地，肯定地确切地说______________2.Inafewyears,perhapsrobotswillthinkandactforthemselves.1）inafewyears=__

5、____________________,译为“在几年的时间里，几年之后”，与一般将来时连用。2）foroneself为……自己Eg:你总是为你自己想。Youarealways____________________.3.Onescientistwarnsthatifrobotsstarttothinkforthemselves,theywillnolongerwanttobeourservants,butourmaster.1)warn意为“警告，告诫”常用结构：warn+that从句；_________________警告某人（不要）做某事；_____________

6、_____告诫某人远离……eg:我警告你不要独自去散步。2)nolonger不再=_____________.nomore=_______________nolonger中的longer是副词long的比较级，long有afteracertainpointoftime(在某一时刻以后)之意，着重表示时间的不再延续，意为“如今不再”。nomore中的more是many/much的比较级，more有again之意，着重表示数量或程度的减少，意为“再也没有更多(大)的数量(程度)”或再也不重复过去反复发生的动作。4.Theymighttreatusaswenowtreatpet

7、s.译：1）might是may的过去式，可用于指过去，也可用于指现在，但语气缓和、委婉。2）treat…as/like…以……方式对待……/把……看做……5.Ithasmadeagreatcontributiontohumans’health.译：____________makeacontribution/contributionstosth./doingsth.为(做)……做贡献Weshouldmakeacontributionto_________(protect)theenvironment.教学过程：1．课前复习及预习