中考英语-重点难点梳理-九下-Unit-3-4课件.ppt

教材重点难点梳理教材重点难点梳理 九年级九年级(下下) Unit 3Unit 4 广州中考高分突破广州中考高分突破重难点梳理.一、重点单词 (下面为常考、常用的单词请同学们认真复习，扩大词汇量)Unit 31.担心；忧虑_ 2.大气层_ 3.温度；气温_4.猜测_ 5.环境保护的；赞成环境保护的_6.无生命的；无生物生长的_ 7.燃料_ 8.煤_9.结果_ concernatmospheretemperatureguessgreenlifelessfuelcoalresult10.（使）增长；增多；增加_ 11.摧毁；毁灭_12.自然界；大自然_ 13.表面；表层_ 14.土壤_15.洪水；水灾_ 16.习惯_ 17.正确的；恰当的_18.无害的_ 19.回收利用_ 20.目的；用途_21.解决办法；处理手段_increasedestroynaturesurfacesoilfloodhabitproperfriendlyrecyclepurposesolution22.政府_Unit 41.地震_ 2.（使）灌满水，淹没_ 3.严重地；厉害地_4.活着的；在世的_ 5.水坑；水塘_ 6.物体；物品_7.长途汽车_ 8.通过_ 9.路线_10.（因为缺点）不运行的；不转动的_ governmentearthquakefloodbadlyalivepoolobjectcoachpasslinedead11.老板_12.聋的_ 13.盯着看；凝视；注视_ 14.屏幕；荧光屏_15.看（听）到；注意到，意识到_ 16.（使）醒来_17.立即；马上；即刻_ 18.失踪的_ 19.同类的；同伴的_immediatelybossdeafstarescreennoticeawakemissingfellow二、重点短语(请同学们重点掌握下面的短语，做到活学活用。

完形填空、完成句子等题型经常会考查大家对短语的掌握)Unit 31.温室效应_ 2.在危险中_ 3.由于_4.导致；造成_ 5.许多；大量_ 6.采取行动_7.有作用；有影响_ 8.充当_ as a result ofgreenhouse effectin dangerresult inmountains oftake actionmake a differenceact as9.海平面_10.楷模；行为榜样_Unit 41.自然灾害_ 2.通过；经过_ 3.持续；坚持_4.闲坐_ 5.不愿为花时间_ 6.不被理睬_7.盯着看_ 8.惊讶地_ 9.暂时_10.救生包_ have no time to dosea levelrole modelnatural disasterpass bystick withsit aroundfall on deaf earsstare atin surprisefor nowsurvival bag三、重点句型 (熟练掌握并运用句型是学好英语的基本要素之一，要做到熟能生巧就必须大量地练习请同学们熟练掌握下面的句型)1.This means that we should only buy and use products friendly to the environment.这意味着我们应该只购买并且只使用对环境有益的产品。

句型：This/That/It + means/meant+that., 表示“意味着”它的否定句式是：This/That/It+doesn t/didn t+mean+that.,表示“并不意味着”翻译：She was not at home, but _ _ _ _（这并不意味着）she went to Shanghai. 2.1)It was nine oclock in the morning.是在早上的九点钟itdidnt mean that2)It is summer now.现在是夏天3)It rained all day.雨下了一整天4)It is only a fiveminute walk from my home to the school.从我家到学校步行只有5分钟的路程 句型：It 用作形式主语以上四句分别是：1) it 指代时间 2) it 指代季节 3) it 指代天气4) it 指代距离翻译：1)现在是早上10点2)今天刮风了3)去到最近的车站要走10分钟3.It s important to stick with it.坚持很重要句型：我们也能用it作一个句子的形式主语来替换动词Its 10 in the morning.It is windy today.It is 10 minites walk to the nearest bus stop.不定式。

这句话可以替换成To stick with it is important.另外，以下两句也是用it作形式主语：1)It seemed that they did not want to leave.似乎他们都不想离开2)In surprise, people finally started to notice the flood, but it was too late.最后，人们很吃惊地注意到洪水，但是太晚了 4.其他好用的常用的句型： 1)Jerry uses the same amount of electricity as his neighbour does .杰瑞的用电量和他的邻居一样2)Everyone hopes that there will never be another ice storm like the one in 1998.每个人都希望不会再有像1998年那样的冰暴 巩固练习一、语法选择 Pollution means 1 dirty or harmful things to land, air, water and so on.Pollution is bad for animals and plants, and it even makes peoples 2 in danger.In our daily life, we can 3 different kinds of pollution in many places.There 4 three main forms of pollution: land pollution, air pollution and water pollution. Land pollution is caused 5 solid waste, such as cans, bottles and some plastic things which arent broken down quickly.It makes the environment 6 very bad.However, air pollution is more serious than land pollution.It is much 7 in cities and towns because of the fumes(废气)from traffic and the waste from human activities.After the gases 8 into the air, they may mix with clouds.Then they will bee some harmful chemicals falling on the ground with rain.It is one of the reasons for soil erosion(土壤侵蚀)which 9 one example of water pollution. Various kinds of pollution will cause many health problems.People 10 they must change this serious situation.Here are many ways to control pollution. 11 alternative energy(替代能源)is very popular in many countries.China, for example, has made up 12 mind to be a leader in this field.It is trying 13 to make full use of energy from the sun and wind.It 14 plenty of money to make electric cars and trains instead of traditional traffic.We should also take action to make our environment 15 .Take cloth bags while going shopping and drive cars less. We have only one earth.We must take small steps now to help protect our environment for the future wherever we are.( )1.A.add B.to add C.adding D.adds( )2.A.health B.healthy C.healthier D.healthiest( )3.A.see B.to see C.seeing D.sees( )4.A.is B.are C.was D.were( )5.A.by B.with C.of D.for( )6.A.look B.looking C.looked D.to look( )7.A.bad B.badly C.worse D.worstCAAAABC( )8.A.get B.gets C.got D.getting( )9.A.was B.were C.is D.are( )10.A.realize B.realized C.realizes D.have realized( )11.A.Develop B.Develops C.Developing Developed( )12.A.it B.its C.its D.it is( )13.A.hardly B.hard C.harder D.almost( )14.A.pay B.pays C.paid D.has paid( )15.A.cleaner and cleaner B.clean and clean C.more and more clean D.more cleaner and more cleaner CDACBBDA二、完形填空 When July es, children know they ll have their examinations and the school year will end soon.Boys and girls will 1 a nearly two months holiday.And they ll 2 school by train or by car to 3 to see their fathers and mothers. The summer holidays are the 4 time of the year for most children.The weather is usually good, so one can 5 most of his time playing outside.If one lives in the country, he can 6 into the woods and in the f。