2020年牛津深圳版英语七年级下册Unit5知识点总结讲解课件.ppt(课件中不含音视频素材)

1、Unit 5Unit 5 WaterWater1.Words And Phrases2.Key Phrases3.Grammar4.Key Sentence5.HomeworkWords and Phrasesdrop journey quantity experiment freshsalt 滴；掉下旅行，旅程数量实验淡的；无盐的盐on voice add chemical throughpipe 表示已连接、处于工作状态或使用中嗓音，说话声增加，添加化学品通过，穿过管道valuable bit bank change returnformcontinue 宝贵的，有用的有点，一点银行找给的

2、零钱，找头归还形成，构成继续turn offaddto a bit part of pocket money(be)made up ofdry up 关掉把加入有点，一点的一部分（父母给孩子的）零花钱由组成干涸Key Phraseson1.The tap was on.on-adj.表示已连接、处于工作状态或使用中反义词-off微波炉开着时别离开房子。(microwave oven)Dont leave the house when the microwave oven is on.turn off2.Turn that tap off,said an angry voice.Youre wa

3、sting water.turn off 关上（电灯、煤气、自来水、电视等）反义词-turn onturn up 开大（收音机、电视等）音量 turn down 调低（收音机、电视等）音量off on up down 都是adj.接代词只能放中间如：turn it off 你离开房间前要把灯关掉。Turn off the lights before you leave the room.drop3.A few days ago,I was in a cloud,said the drop of water.Then I dropped into a river and then into a

4、reservoir.drop-n.滴 a drop of-一滴drop-v.滴下，掉下，落下过去式-dropped常与into,onto,off连用今早他从单车上掉下来了。He dropped off his bike this morning.add.to4.They cleaned me and added some chemicals to me.chemical-n.化学制品，化学药品，复数chemicalschemical-adj.He is a chemical doctor.add.to.把加入四加五等于九。If you add 4 to 5,you get 9.make sth

5、.adj.5.People will make me clean again.make sb./sth.adj.使某人（或某物）那个歌手的死令他的粉丝很伤心。The singers death made his fans sad.remember6.Remember not to waste or pollute me.remember to do sth.remember not to do sth.remember doing sth.记得做过某事（已做）记得（不）要做某事-（没做）Exercise1.请记得按时到校。Please remember to arrive at school

6、on time.2.请记得明早别迟到。Please remember not to be late tomorrow morning.3.她记得把钥匙忘在家里了。She remembered forgetting the key at home.Its time to do sth.Then it was time for people to clean me.Its time to do sth.该做了孩子们该上床睡觉了。It was time for us to get up.Grammar谈论数量语言观察1.There are too many things here,so there

7、isnt enough room for another table.2.I didnt sleep well last night,because there was too much noise outside.3.We dont have enough books for the kids,so they have to share with others.语言观察4.The exam was very difficult.Quite a few students failed in the exam.But James did a very good job.He made few m

8、istakes.5.I can speak a little French.6.He often gives others a lot of help,so he has a lot of friends.The re are no eggs or milk in the fridge.Lets buy some.要点归纳修饰可数名词修饰可数名词a/an,one/two/,a/an,one/two/,few,a few,many,few,a few,many,too many,how many,too many,how many,a number of,some,a number of,som

9、e,anyany修饰不可数名词little,a little,much,too much,how much,a great deal of 可数与不可数皆可修饰some,any,no,a lot of,enough词义辨析too much,much too,too manyany,somea little,littlea few,fewtoo much,much too,too manyI ate too much food yesterday.She is much too beautiful.My father has too many books.Conclude:too much+不可

10、数名词，表示数量“太多”much too+形容词，表示程度“太”too many+可数名词，表示数量“太多”any,someI have some tea here.I cant see any tea here.I have some English books.Do you have any friends here?Would you like some coffee?Any student can answer this question.Conclude共同点any,some+可数/不可数名词不同点any多用于疑问句和否定句，some多用于肯定句特殊点1.在表示建议，反问，请求的疑问

11、句中，或期望得到肯定回答时，多用some2.当any表示“任何”的意义，起强调作用时，它可以用在肯定句中a little,littlea few,fewI have a few friends,and I like playing with them.I have few friends,so I feel lonely.I have a little water,so I dont need to buy any.I have little water,so I need to buy some.Conclude+可数名词可数名词+不可数名不可数名词词表示肯定意义a fewa little表

12、示否定意义fewlittleKey sentenceGroundwater may be drinkable,but it is not easy to find groundwater that is clean and safe to drink.drinkable=sth can be drinked-able changeable,calculable.it is not easy to find groundwater that引导定语从句to drink 做groundwater的后置定语dripIf water drips from your tap every 10 secon

13、ds,you will waste about 315 litres of water a year-enough to fill two baths!drip 动词“滴下”I felt a drop of rain drip on my face.我觉得有一滴雨滴到了我脸上。enoughIf water drips from your tap every 10 seconds,you will waste about 315 litres of water a year-enough to fill two baths!enough “足够”enough+n（可数&不可数）adj+enoug

14、h+to+doHe doesnt have enough money to buy a new coat.Is your house big enough to hold so many people?if 条件状语从句If water drips from your tap every 10 seconds,you will waste about 315 litres of water a year-enough to fill two baths!if 引导的状语从句，遵循“主将从现”“主情从现”“主祈从现”“主现从现”的规律。如果明天下雨，我就不出去。如果明天阳光灿烂，我们就能出去玩了

15、。如果温度0以上，冰会融化成水。如果你再说话，请你出去。Instead ofHaving a shower instead of a bath can save up to 400 litres a week.instead of 代替，而不是 instead of+名词/代词/动名词I gave him some advice instead of money.You should do something to help instead of laughing at them.About 70%of the human body is water.当“分数或百分数+名词或代词”作主语时，谓

16、语动词的单复数形式常取决于分数或百分数后面的名词或代词。More than 80%of the English books are from Canada.Only 40%of the work was done yesterday.V-ingHaving a bath uses about twice as much water as taking a shower.V-ing称作动名词，起到名词的作用，谓语动词用单数，在句子中充当主语、宾语或表语。Reading is a good way to learn English.He gets every chance to practice

17、speaking English.asasHaving a bath uses about twice as much water as taking a shower.asas中间用形容词或者副词的原形，这一结构前也可与倍数相连，表示“多少倍那么”Is he as tall as your brother?The meeting hall is four times as large as our classroom.Turn that tap off=turn off that tap如果用代词 it 代替 that tap，只能用 turn it off。例如：switch on the fan=switch the fan on=switch it onHomework