广东省2017中考英语教材重点难点梳理 Unit 5- Unit 6 课件

课件39张PPT。第七节
七年级（下）
Unit 5~Unit 6第一部分 教材重点难点梳理目录contents重难点梳理重点单词 重点短语 重点句型巩固练习语法选择 完形填空 阅读理解 阅读填空 单词拼写 完成句子重难点梳理重点单词
重点短语
重点句型目录contents1.滴；掉下；落下______ 2.旅行；旅程______
3.数量______ 4.实验；试验______
5.淡的；无盐的______ 6.盐______
7.表示已连接、处于工作状态或使用中______
8.嗓音；说话声______ 9.水库______
10.增加；添加______ 11.化学品______Unit 5dropjourneyreservoirquantity experiment freshsaltvoiceonaddchemical12.通过；穿过______ 13.管道______
14.宝贵的；很有用的______
15.有点；一点______
16.银行______ 17.找给的零钱______
18.归还______ 19.蒸气；雾气______
20.形成；构成______
21.搅拌______ 22.继续______
23.结晶(体)______Unit 5throughpipe bankvaluablebitchangevapourreturnformcontinuestircrystal1.电______
2.谈话______
3.确认；认出______
4.规则______
5.任何人______
6.回答______
7.愚蠢的______
8.电线______
9.(使)连接______ Unit 6electricityconversation identifyrule anyonereply foolish wireconnect二 重点短语 10.电缆______
11.瞬间；片刻______
12.电池______
13.厨灶；炉具______
14.冰箱______
15.(用锁)锁上______
16.测试______
17.使整洁 ；使整齐______
18.触摸；碰______Unit 6cablemomentbatterytidyfridgecooker testlocktouch1.一滴水________
2.关掉________
3.把……加入……________
4.经过________
5.从……出来________
6.有点；一点________
7.……的一部分________
8.(父母给孩子的)零花钱________
9.由……组成________ Unit 5 a drop of wateradd...to... turn off travel throughcome out ofa bitpart ofpocket moneybe made up of10.干________
11.使……变成________
12.洗盆浴________
13.淋浴________
14.而不是……________Unit 5dry upturn into have a bath instead oftake/have a shower 1.太阳能/水能/风能________
2.一袋……________
3.在某种程度上________
4.连接到________
5.发电站________
6.过了一会________
7.洗衣机________
8.电饭煲________
9.关(电灯、机器等)________ Unit 6 solar/water/wind powerin a way a packet ofbe connected topower station a moment laterwashing machinerice cookerswitch off10.收拾妥；整理好________
11.空调________
12.安全提示________
13.电器________
14.开(电灯、机器等)________
15.引起火灾________
16.确保________Unit 6 tidy upsafety tipair conditioner electrical applianceswitch onstart a firemake sure1.Having a bath uses about twice as much water as taking a shower.盆浴的用水是淋浴的两倍。句型:表示次数的词+as+名词+as，意为“……是……的几倍”。2.Remember not to waste or pollute me.记得不要浪费、污染我。
句型: remember/don’t forget+(not)to do sth.意为“记得/别忘了要做某事”，提醒对方要记得去做某事，经常在口语中出现。
翻译：记得写邮件给我。Remember ______ ______ e-mails to me.
to write3.其他好用的常用句型:
1)Then it was time for people to clean me.人们该帮我清洁一下了。
2)Dora turned the tap off and came out of the bathroom.朵拉关掉水龙头，从浴室里走了出来。
3)About 70 % of the human body is water.人的身体70%都是水。
4)Can you get me a packet of electricity?你能给带我一包电吗?
5)It’s like water,in a way.在某种程度上，它像水。
6)Do not put your hand in the washing machine when it is on.当洗衣机开着的时候，不要把手放进去。Many places in the world need more fresh water.Every country is trying to find ways to turn salt water __1__ fresh.
Why __2__ there many factories like the Symi factory?
In some places，the sun is not __3__.Or it does not shine every day.In such places，__4__ ways of heating sea water can be used.These ways cost__5__ money，but they work faster than the sun.__6__ boiling sea water with high heat，a lot of fresh water can be made quickly.
But __7__ is not the only way to get fresh waterfrom salt water.Other ways __8__.
One way is freezing(冷冻).The fresh part of salt water freezes first.To get fresh water，the pieces of ice __9__ taken out.
Which way is __10__? The one that gives the most water for __11__ money.It __12__ a different way for each place.
Symi’s way seems very __13__ for small，hot places.It does not make very much water at a time.But the factory is easy to be built and __14__ little.
That is __15__ people in many dry places talk about Symi!( ) 1.A.to B.into C.off D.back
( ) 2.A.isn’t B.aren’t
C.don’t D.doesn’t
( ) 3.A.hot enough B.enough hot
C.hotter enough D.enough hotter
( ) 4.A.other B.others
C.the other D.the others
( ) 5.A.many B.much C.more D.most
( ) 6.A.In B.At C.By D.Though
( ) 7.A.heat B.heats C.heated D.heating
( ) 8.A.try B.are tried
C.tried D.were tried BACCABDB( ) 9.A.is B.was C.are D.were
( ) 10.A.good B.better
C.best D.the best
( ) 11.A.little B.less
C.least D.the least
( ) 12.A.may be B.maybe
C.may is D.may are
( ) 13.A.good B.well
C.better D.the best
( ) 14.A.cost B.costs
C.costing D.to cost
( ) 15.A.what B.when C.why D.howDCDAABCThere is not enough oil in the world now.As time __1__，it becomes less and less，so what are we going to do when it __2__? Perhaps we will go back to using horses，carriages and bicycles.
In the Second World War，some people didn’t use gas __3__ petroleum(石油) in their cars.They made gas from wood and plants __4__.The car didn’t go fast，but they ran，so this was better than nothing.However，in the future，we can’t __5__ all our trees to make gas; we need our trees for other things，too.Besides __6__ types of gas，we can also use electricity to run our cars，but first we must make the electricity! Some countries have coal and they make electricity with that，but we might not always have coal，__7__.Other countries have big，strong __8__，and they can use the power of water to turn turbines(涡轮机) and make electricity more __9__ and cheaply.
We are also able to get power from the ocean tides.We put turbines into the __10__ of the river.Then the tide comes in，the water turns the turbines and then it goes out，it turns them again.( ) 1.A.runs out B.goes by
C.turns up D.comes up
( ) 2.A.turns out B.comes out
C.runs out D.takes out
( ) 3.A.made of B.made in
C.made by D.made from
( ) 4.A.instead B.thus
C.however D.though
( ) 5.A.turn down B.put down
C.settle down D.cut down
( ) 6.A.different B.many C.several D.fewBCADDA( ) 7.A.too B.also C.either D.neither
( ) 8.A.lakes B.oceans
C.streams D.rivers
( ) 9.A.difficultly B.easily
C.differently D.healthily
( ) 10.A.mouth B.body C.head D.faceCDABNapoga is a 12-year-old girl in Ghana，Africa.It is hard for her family to get clean water.Every morning，she leaves home at half past five to get clean water for her family in a village far away.It takes her six hours to get enough clean water for daily cooking and drinking.She has no time to go to school or to play with her friends.Millions of people in the world are like Napoga.They can’t get enough clean water to keep healthy.
Earth Day is April 22.But on all other days，we must also remember it.The water we use is the most important natural resource on the earth.
Water covers 70% of the earth’s surface.But most of that is sea water.We can’t use it for very many things.Fresh water covers only 1% of the earth’s surface.
You probably feel lucky that your life isn’t as hard as Napoga’s.But that doesn’t mean you don’t have to worry about water.We all face serious water problems.One of them is water pollution.All kinds of things from cars，factories，farms and homes make our rivers，lakes，and oceans dirty.How do cars and factories make our water dirty? First， they pollute the air.Then， when it rains，the rain water comes down and makes our drinking water dirty.Dirty rain， called acid rain，is also bad for plants，animals and buildings.
Scientists say that in 30 years，more than half of the people in the world won’t have enough clean water.We have to learn how to save more water for ourselves and our children.Here is some advice for saving water：
Turn off the water while you brush your teeth.You can save as much as 450 liters each month.
Leaky taps(漏水的龙头) waste a lot of water.Fix them right away!You can easily cut your 10-minute showers(沐浴) in half—and you’ll be just as clean.
When you wash dishes， don’t let the water run.
Only wash clothes when you have a lot to wash.If your washing machine isn’t full， you’re wasting water!
( ) 1.Every morning Napoga went to get clean water ______.
A.before she went to school B.after she finished school
C.without going to school D.after she played with her friendsC( ) 2.On the earth，______.
A.sea water is widely used than fresh water
B.there is very little water for our living
C.there is 71% of fresh water
D.we don’t need to worry about water
( ) 3.Acid rain ______.
A.is only bad for living things
B.can be produced in factories
C.doesn’t do harm to people， but it’s bad for plants，animals and buildings
D.doesn’t just do harm to human beings but to animals，plants and buildingsBD( ) 4.Which of the following wastes water?
A.We need ten minutes if we want a clean shower.
B.We should put in enough clothes when we wash them in washing machines.
C.You can keep yourself clean by having a shower for five minutes.
D.Don’t let the water run when we brush our teeth and wash dishes.A( ) 5.What’s the main idea of the passage?
A.Something must be done to prevent water from being polluted.
B.Clean water means much to human beings and living things around us.
C.It’s time to take care of the water we use.
D.Water is the most important natural resource on the earth.CSports can help you keep fit and close to nature.1.______
Some sports are bad for environment.Golf，as you may know，eats up not only large areas of countryside，but also lots of water.Besides，lots of energy is used to keep its courses (球场) in good condition.2.______ For example，in the dry places of Spain，golf leads to serious water shortage (短缺) in some places.CAThere are many environment-friendly sports.Power walking is one of them.You don’t need any special equipment except a good pair of shoes.3.______ Simple and free，power walking can also help you stay healthy.If you walk regularly，it will be good for your heart.4.______
You can take part in these environment-friendly sports.5.______ Members of green sports play sports outdoors，in the countryside or other open space.And best of all，it’s free.DAEA.This causes major environmental changes.
B.You don’t have to worry about energy and your money.
C.However，the sport you choose might have great influence on the environment.
D.Experts (专家)say 20 minutes of power walking daily can make you sleep well and keep thin.
E.They are better and greener than traditional health clubs and modern sports centers.1.The water keeps running because the t______ is broken.
2.He was weak and spoke in a low v______.
3.Remember to l______ the door and window before leaving the house.
4.Water is very valuable.So we should save every d______ of water.
5.You must r______ the books to the library in a month.ap oice ockropeturn6.Have a break now,and we’ll c______ discussing the question in half an hour.
7.Some of my classmates think the little boy is f______,but in fact,he is very clever.
8.We all know that water is v______.So we shouldn’t waste and pollute it.
9.She passed the driving t______ when she was 20 years old.
10.There’s f______air and food in the countryside.ontinueoolishaluable est resh1.贝蒂通常会把一部分零用钱用来买书。
Betty usually spends ______ ______ her pocket money on books.
2.我们班由15名男生和13名女生组成。
Our class ______ ______ ______ ______ 15 boys and 13 girls.
3.停止玩电脑游戏吧，是时候做作业了。
Stop playing computer games.______ time ______ ______ your homework.part of is made up of It’sto do4.记得下次不要带手机进学校。
______ ______ ______ ______ mobile phones into the school next time.
5.他们打算打篮球而不是踢足球。
They are going to play basketball ______ ______ ______ football.
6.冰箱里的牛奶太少了。我们去买些吧。
There ______ ______ ______ milk in the fridge.Let’s go to buy some.Remember not to takeof playinginsteadis too little 7.因为我们去到超市太迟了，所以只买到了一些鸡蛋。
We got only some eggs in the market because we got there ______ ______.
8.——我可以在这吸烟吗?
——不行，这里是禁烟区。
—______ I ______ here?
—No,you ______.Here is “No smoking” area.
9.周末太多作业了。50%的作业是数学的。
There ______ ______ ______ homework at the weekend.50% of it ______ for maths.
too late is too muchMaysmokeismustn’t谢
谢
观
看
！