江苏省仪征市实验中学九年级英语下册 Unit 4 Life on Mars Period 3课件 （新版）牛津版.ppt

unit4 reading2 learningaims 1 tolearnsomelanguagepointsinthetext 2 tobeabletofinishsomeexercisesaccordingtothetext revisiona answerthefollowingquestionsaboutthelifeonmars whenwillpeoplemovetotheplanetmars whywillweleaveourownplanetearth howlongdoesthespacecraftneedtogettomarsatpresent howlongdoesthespacecraftneedtogettomarsinthefuture whatwouldfoodonmarsbelike bytheyear2100 becauseearthisbecomingmoreandmorecrowdedandpolluted ittakesmonths about20minutes foodwouldprobablybeintheformofpillsandwouldnotbesotasty 6 whatwillbeaproblemforpeopleonmars 7 howcanpeoplepreventthisproblem 8 whataretheadvantagesforpeopleonmars 9 whichschoolwouldthestudentsstudyat 10 whereshouldthestudentsconnecttheircomputers gravity peoplewillhavetowearspecialbootstopreventthemselvesfromfloatingoffintospace a morespaceb moretimetorelaxc noschool theywouldstudyatonlineschoolswith e teachers theyshouldconnecttheircomputerstoaninterplanetarynetwork revisionb fillintheblankswithproperwords ourownplanet earth isbecomingmoreandmore and hopefully wecanbuildabetterworldon bytheyear2100 atpresent ourspacecraftaretooslowtocarrylargenumbersof tomars by2100 the mighttakeonly20minutesinspacecraftthattravelatthespeedoflight foodonmarswouldprobablybeinthe ofpillsandwoundnotbeso asthatontheearth gravitycouldbeanotherproblemforpeopleonmars thegravityonmarsisonlyabout ofthatontheearth peopleonmarshavetowearspecial topreventthemselvesfrom offintothespace crowded polluted mars passengers form journey tasty three eighths boots floating languagepoints 1 ourownplanet theearth isbecomingmoreandmorecrowdedandpolluted moreandmorecrowded越来越拥挤more most放在多音节形容词 副词前面 帮助构成比较级和最高级 如 morebeautiful mostslowly这里 moreandmore用来加强程度 表示越来越怎么样 相当于 morecrowdedandmorecrowded而短形容词则这样构成 biggerandbigger 越来越年轻越来越快越来越聪明越来越细心越来越好越来越舒服 atthemoment iwantyoutosayasentencetopraise 赞扬 yourpartneroryourbestfriendwiththe comparative comparative comparative comparative 越来越 youngerandyounger fasterandfaster cleverandclever moreandmorecareful betterandbetter moreandmorecomfortable crowded用作形容词 意为 拥挤的 becrowdedwith意为 充满 挤满 如 theroomwascrowdedwithguests 房间里挤满了客人 practice 根据汉语意思完成句子 1 thebuswasso 拥挤的 thatididn tgetonit 2 aswegetnearer theimagebecomes 越来越大 crowded biggerandbigger 1 atpresent ourspacecraftaretooslowtocarrylargenumbersofpassengerstomars 目前 我们的宇宙飞船太慢了 无法运送大批的乘客去火星 languagepoints largenumbersof表示 大量的 alargenumberof largenumbersofpeoplegotravellingduringthenationaldayholiday 1 too adj todo sandy太小了而不能去上学 sandyistooyoungtogotoschool so that can t sandyissoyoungthatshecan tgotoschool adj enoughtodo sandyisnotoldenoughtogotoschool it stimeforyoutomakesentenceswiththesentencestructuresabove largenumbersof许多 大量 修饰 名词 做主语时 谓语动词常用 形式 相当于alotof many eg largenumbersofbirdsflytothesoutheverywinter 2 largenumbersof many thenumberof 的数目后常接可数名词复数 做主语时 谓语动词常用单数形式 1 chinahas ofpeople 2 ofthepopulationofchinais1 3million 3 myfriendscametomybirthdayparty a large number thenumber anumberof 可数 复数 eg thenumberoftouristsstartstotailoffinoctober 游客在十月份开始逐渐减少 2 withthedevelopmentoftechnology bytheyear2100 thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight 随着技术的发展 到2100年 乘坐以光速飞行的宇宙飞船 行程或许只要大约20分钟 iwassecondintheracewithatimeof14 2seconds 介词with短语 在句中常用作状语 表示原因 条件 时间 伴随 方式等 我以14 2秒的成绩在比赛中位列第二 光的速度是300 000 000米每 per 秒 汽车正高速行驶 我们要全速前进 thespeedofthelightis300 000 000meterpersecond thecarsaredrivingathighspeed weshouldmoveatfullspeed atthespeedof bythetimeigottothestationthetrainhadalreadygone by表示 到 为止 截止 等我到达火车站时 火车已经开走了 ata thespeedof表示 以 的速度 thecarismovingataspeedof100kilometresperhour 小汽车正以每小时100公里的速度行驶 4 thegravityonmarsisonlyaboutthree eighthsofthatonearth three eighths八分之三分数在英语中通常是借助于基数词和序数词来共同表达的 其中基数词表示分子 序数词表示分母 如 one tenth十分之一athird三分之一注意 分子除用one外 也可用a twothirds三分之二fourfifths五分之四但是 1 2不能说a one second 而要说a one half 1 4和3 4可以说a one fourth和threefourths 但常用aquarter和threequarters表示 如果分子大于1 分母要用复数形式 如 选择题 about ofthestudentsarefromforeigncountries a threefourb threefourthc thirdfourthd threefourths翻译句子 我们班五分之三是女生 thestudentsinmyclass girls practice three fifthsof are theaironmarsismuchthinnerthanthatontheearth 在做比较时 我们常用that those指代句中类似或相同的那一部分 此句中that指代前面的gravity 火星上的空气要比地球上的稀薄的多 5 comparedwithlifeonearth lifeonmarswillbebetterinmanyways compare examinepeopleorthingstoseehowtheyaresimilarandhowtheyaredifferent v 比较 对比 wecarefullycomparedthefirstreportwiththesecond 我们仔细的对第一份报告和第二份报告进行了对比 comparewith把 相比较 拓展 compare to意为 把 比作 shakespearecomparedtheworldtoastage 莎士比亚把人世比作舞台 用comparewith和compareto的正确形式填空 hecannot shakespeareasawriteroftragedies 2 youcannot thiswar thevietnamwar 越南战争 practice comparewith compareto lifeonmarswouldbeinterestingaswellaschallenging 火星上的生活 不仅有挑战性 还很有趣 iwanttovisitandrewaswellasmartin aswellas意思为 不但 而且 我想去拜访安德鲁 还有马丁 sheshares in mytroublesaswellasmyjoys 她与我同甘共苦 6 lifeonmarswouldbebetterinsomeways 在很多方面我们都做的很好 wedidwellinmanyways insomeways inmanyways bytheway 1 doyouknowhowtogettoxishanqiaoschool 2 youareveryclever youareright 3 itisagoodideatoworkalone bytheway inmanyways insomeways 7 foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty as adj adv as amy和sandy一样苗条 amy跳舞没有sandy跳得优美 amyisasslimassandy amydoesn tdanceas sobeautifullyassandy notas so adj adv as intheformof以 形式 discussionaboutlifeonmars notcrowded polluted havemorespace robotswilldoourwork studentswillstudyathome peoplewillhavemoretimetorelax peoplewillwearspecialdesignedboots notrafficjam lowgravity fooddoesn ttastegood travelwillmakepeoplefeelsick moneyisnotimportant farawayfromfriendsonearth advantages disadvantages everygroup pleasegiveareport domoreexercises translatethefollowingphrases 以光速运行 2 在很多方面 飘进太空 4 现在 目前 parewith 6 largenumbersof travelatthespeedoflight inmanyways floatoffintospace atpresent 与 比较 许多的 大量的 b fillintheblankswiththecorrectformsofthewordsinthebracketswehada mealwithherlastnight tast