Unit5 Water知识点课件2021-2022学年牛津深圳版英语七年级下册(共44张PPT)

(共44张PPT)
Unit 5 Water
单词填空1. We should save every d______ of fresh water. 2. “Be quiet,” said Tom in a low v_____ to his classmates. 3.The workers a_____ chemicals(化学物质)______ the swimming pool to keep it clean. 4.Go t_______ the forest and you will find a beautiful lake. 5. These old books are v_______ to my father. 6. Life is a pleasant j_______. 7. The tap is running. Can you t______ it off 8. R_______ to post the letter for me.9. Lucy felt afraid when she walked t_________the forest by herself.10. My mother often gives me some c_________after shopping.
words
drop
fall
表示从高处往下掉或降，有时可互换。
He dropped/fell from the top of the house.
drop 一般指无意的行为，意外
Tears dropped from her eyes.
The temperature suddenly dropped to zero.
fall 落下，掉落。
在重力作用下，有自然坠落之意。
An apple fell to the ground.
Snow often falls in Shenyang in winter.
drop 做名词讲，通常指液体
a drop of water
drops of rain
fall asleep 睡着
fall down 摔倒
fall in love with sb. 爱上
fall into pieces 碎成许多片
fall behind 落后
【应用】
　　（1）我感到有两滴雨落在了我的脸颊上。
　　I felt ________ ________ ________ rain on my face.
　　（2）那个男孩突然从树上掉下来。
　　Suddenly，the boy ____________ ________ the tree.
two
drops
of
dropped/fell
from
【1】journey n. 旅行；行程
　　It’s about half an hour’s journey. 大约半小时路程。
【近义名词辨析】journey, trip, travel与tour
　　(1)journey 为普通用语，指陆地上的远程旅行。
　　This need not be the end of the journey. 这里未必是你旅行的终点。
（2）trip 指有特定目的的短距离旅行，强调在路上所花的时间和所走的路程。
　　On Thursday we went out on a day trip.
　　（3）travel 惯用复数形式，“游历”，泛指到各地旅行，表示旅行的路途远、时间长。　　
（4）tour 观光游览；常指访问多处的短期观光旅游，有周游后回到原出发地之意。
　　The band will be going on tour. 这个乐队将要进行巡回演出。
词汇精析
【应用】
　　(1) At first I was afraid the long ___________ would be too much for her.
　　(2) We went on a guided ___________ of Italy that included stops at Milan, Venice, Florence and Rome.
　　(3) I go to work by train, and the ___________ takes me 40 minutes.
　　(4) The ___________ of Marco Polo is one of the most interesting books that I have ever read.
journey
tour
trip
Travels
动词：travel & tour
travel v 旅行
My dream is to travel around the world.
They travelled 200 miles on the first day.
tour
vi. & vt. 旅游，游历，观光
I will tour the world in the future.
words
3. quantity cn.&un. 数量 （pl.） quantities
a large quantity of 大量 a small quantity of 少量 in quantity 大量，许多
quantities of 即可修饰可数名词亦可修饰不可数名词，谓语动词永远都用复数.
例如: Quantities of food (nuts) were on the table.桌子上有许多食品(坚果).
words
a quantity of即可修饰可数名词亦可修饰不可数名词，但其后接可数名词复数时，谓语动词用复数;其后接不可数名词时，谓语动词用单数.
例如: A large quantity of beer was sold out.大量的啤酒被售出.
A large quantity of blouses were on sale.大量罩衫有售.
quality cn.& un. 品质，质量 cn.素质，品德（一般用复数）
Much of the land was of poor quality. 很多地土质很差。
He shows strong leadership qualities. 他表现出很好的领导素质。
words
experiment (s)
n. 实验
do/make an experiment on …
v. 试验、实验
experiment on sth
words
4. fresh adj. 淡的；无盐的；清新的；新的 [fresher-freshest]
fresh news/information/data
fresh air 新鲜空气
fresh water 淡水
fresh blood 新鲜血液，新成员
freshman n.(中学或大学)一年级生 sophomore
junior senior
fresh in one’s mind 记忆犹新
Write about the trip while it is fresh in your mind.
(as)fresh as a daisy非常新鲜；精神饱满 【雏菊】
She looked fresh as a daisy after her short sleep.
words
5.salt un. 盐 vt. 给…（食物）放盐（调味）
salt water 海水，盐水
salty (adj.) 咸的 -->saltless adj
Don’t add too much ______ to the soup, or it will be _____.(salt)
6. on adv. （表示处于工作状态或者使用中）
反义词： off (表示处于关闭状态)
He left the light on when went out.
words
voice 意为“声音;嗓音”。用于人时，指说话、歌唱或发笑的声音，也可指发言权。
sound 泛指自然界的任何声音，不论其高低、是否悦耳等。
noise 可以作可数名词，也可以用作不可数名词，表示“人们不愿听到的声音或嘈杂声”。
【拓展】
　　（1）in a low/loud voice 小声说/大声说
　　（2）at the top of one’s voice 声嘶力竭地；大声地
　　
【应用】
　　(1) The __________ wakes me up．
　　(2) The teacher opened the door without a __________.
　　(3) He answered the question in a low __________.
(4) Light travels much faster than________
noise
sound
voice
sound
words
add v. 增加；添加 ;加起来;
　　 She added sugar to her tea.
【拓展】
　　(1) add to 增添；增加
　　The bad weather added to our difficulties．
　　(2) add...to... 把……加到……
　　他在购物单上加了几样东西。
　　(3) add up to 总计达
　　The cost of two trips added up to 1,000 dollars.
【应用】
(　　)Add 27 ____ 23, and you get 50.
　　A. on B. up to C. to
C
words
through prep. 通过；穿过
近义词辨析：through, across
through 强调从人群或物体中间穿过,该动作在三维空间进行。
The sun goes through the window.
across 一般指“横过”。
She went across the street to do some shopping.
Can you swim across the river
chemical cn. 化学品 chemistry un. 化学 chemist cn. 药剂师，化学家
【应用】
　　(1) Our train passed _________ the tunnel.
　　(2) You should be careful when going ________ the road.
through
across
words
valuable adj. 宝贵的，很有用的 value cn.&un. 价值
valueless adj. 不值钱的=worthless
invaluable adj.价值高得无法估量的；极宝贵的
=priceless adj.无价的, 极其贵重的
These old letters are very valuable. = These old letters are of great value. （be of great value=be valuable）
words
bit cn. 有点；一点
①a bit=a little 有点，稍微;后都可以接形容词/副词的原级/比较级
She is a bit afraid of the teacher. (= a little)
This book is a bit/little more interesting than that one.
②a bit of一点…; 少量…后面加不可数名词,
She poured a bit of salt water in his mouth. （= a little）
③a bit of=a little,放在名词的前面，做定语。
I have a bit of water.=I have a little water.
④在否定句中，两者意义相差很大：
not a bit … 一点都不...=not ..at all e.g.I am not a bit tired.
not a little… 非常…, 很…=very e.g.I am not a little tired.
words
change un. 找零，找头 cn.变化 v改变，变化
1.He told the shopkeeper to keep the change.
2.The witch changed the prince into a frog.
3.Great changes have taken place in this place.
return v. 归还 =give back
返回=come back=go back
bank cn 银行&河岸；banker银行家
form v. 形成, 组成 n. 形式;表格
in the form of =in the shape of…以…的形式
formal adj. informal
words
continue vi.& vt. 继续
continue doing sth.= go on doing sth. 继续做同一件事
e.g.I continued doing my homework after answering the phone.
continue to do sth. = go on to do sth.继续做下一件事
e.g.I continued to do my Maths homework after finishing English.
continue with sth. 继续某事
e.g.I went to my room to continue with my packing.
【应用】
　　 I did my homework for 2 hours. After drinking a cup of coffee, I continued _________ (do) my homework.
doing
Practice
二、巩固练习：
根据句意用括号内所给词的适当形式填空。
1. Rain ______________ (drop) down from clouds.
2. These old books are of great ______________.(valuable)
3. Remember not ______________ (waste) water.
4. It’s time for us ______________ (clean) the classroom.
5. My mother told me ______________ (not turn) on the TV.
6. The machine is _______________ (make) up of 12 parts.
7. Have a rest before you continue _______________ (drive).
8. Why not _________ (apologize) to your friend
9. We study many subjects at school, including _______________ (chemical)
10. The dish is too _____________(salt) to eat.
drops
value
to waste
to clean
not to turn
made
driving/ to drive
apologize
chemistry
salty
1. exercise vi 锻炼
cn 习题，练习
un 锻炼，运动
2.分数表达法
①书写规则：
子基母序：分子基数词，分母序数词
子多母复：分子大于1，分母+s
②主谓规则：
谓语动词的单复数与分数后的名词单数复数一致
③特殊写法：1/2 one half
1/4 one quarter 3/4 three quarters
3. 百分数%=percent谓语动词与其所修饰的名词的数保持一致
4.on Earth=on the Earth在地球上
on earth 究竟 到底
rise(rose-risen) vi升起the sun rises in the east(主语常是物)
raise(raised-raised) vt提高，增高，饲养，抚养（主语常是人）raise one's voice、raise money、raise pets=keep pets
1.be on 开着，表示已连接，处于工作状态或使用中<反>be off
2.turn off关闭<反>turn off关闭
turn up （音量）调高，调大
turn down （音量）调低，调小
名词可中可后，代词只放中间
辨析turn off & close
turn off 关上（电灯，自来水，煤气等）
close关上（门窗箱子盒子等）<反>open
3.said an angry voice= a voice said angrily
4. waste v & n waste time/money=be a waste of sth
5.look around环顾四周
look up
look at
look after
look like
look for
look out
look forward to
6.no one= nobody
7.there=in the bathroom
1. Do you know where i come from
宾语从句，陈述语序
2. it's time for sb to do sth到了某人做某事的时间了
e.g.到了我们起床的时间了
it’s time to do sth到做某事的时间了
it's time for sth...的时间到了
the end of...的结尾；...的尽头
at the end of ...在...的后期/末端
by the end of ...到...末；到...结束时；仅表示时间
in the end=at last=finally=eventually
make sb/sth do sth
make sb/sth +adj
make sth for sb= make sb sth
remember to do sth
remember doing sth
come out of从...中出去
P62
as
part of
pick sth up
pick sb up
Practice
一、根据汉语提示，填入恰当的短语补全下列句子。
1. Don’t ________________(让水龙头开着). Turn it off after you finish using it.
2. There is something on the ground. Please ________________(捡起它).
3. _______________(多达) 600 people fell ill on the ship. How terrible!
4. _______________(……的结尾) the story is sad. All the characters (人物) died.
5. We arrived early at the theatre and spent a few minutes ________________(环顾四周).
leave the tap on
pick it up
up to
The end of
looking around
Practice
1.刷牙的时候不要让水龙头开着。
___________________________________________________
2.他总是往牛奶里加很多糖。
___________________________________________________
3.他在这座城市几乎没有朋友。
___________________________________________________
4.我不知道他要去哪里.
___________________________________________________
5.记得不要浪费粮食。
___________________________________________________
Don’t leave the tap on when you are brushing teeth.
He always adds a lot of sugar to the milk.
He has few friends in this city.
I don’t know where he is going.
Remember not to waste food.
Grammar
英语中用来表达数量的一些词和用法：
1. little; a little; few; a few
可数 不可数
肯定 a few(有一些) a little
否定 few(几乎没有) little(几乎没有)
1）----Would you please buy some salt for me, Tony Because there is _____ left.
2）He has so ______ money that he can't afford the book.
Grammar
much, many , a lot of 与lots of
much +不可数
Have you got _________homework to do
Have you got ___________knifves
many+可数复数
a lot of+ 可数/不可数
lots of +可数/不可数
Grammar
enough，too
enough enough +名词 形容词、副词+enough I have enough rice.
too many太多 too many +名词复数 I have too many apples.
too much太多 too much+ 不可数 I have too much rice.
too few太少 too few+名词复数 I have too few apples.
too little太少 too little + 不可数 I have too little rice.
not enough I don’t have enough apples.
I don’t have enough rice.
Grammar
too much / too many / much too的辨析：
词语 词形 特点
too much 形容词短语 后跟不可数名词，也可作代词短语
too many 形容词短语 后跟可数名词的复数，也可作代词短语
much too 副词短语 后跟形容词或副词
Grammar
how much / how many
how many 多少+可数名词复数 how many apples are there in the basket
how much 多少+不可数名词；多少钱 how much salt do you need /how much is the rice
Grammar
no/none/no one
no 没有=not any既可以修饰可数名词，也可以修饰不可数名词 there is no water in the bottle.=
none 没有一个人/物 none of+n none用来回答how much/many/any+n引起的疑问句 -how many students are there in the room
--none
no one 没有一个人=nobody 不与of连用；谓语动词用复数 no one用来回答who/含有any,anybody的疑问句 no one lives here.
---who is in the room
---no one.
Grammar
修饰可数的量词： a number of（若干） the number of（数量）, a large/great number of 大量的， many（很多）, too many， few （很少，几乎没有）, a few（有几个），several（有几个）
修饰不可数的量词： a large amount of , huge amounts of（大量的）, a great deal of（很多）, much（一些，很多）, too much（很多） little（很少，几乎没有）, a little（有一些），a bit of （有一点）
两个皆可修饰的量词： some（一些）, any, a lot of（很多）=lots of, plenty of（充足的） , enough（足够的），most（大多数的）
Grammar
一、用 little , a little, few , a few 填空。1. There is ________ bread in the fridge . Please go to buy some.2. The girl just come , so she has _______ friends in this school.3. Your sister bought ___________ cakes back , if you are hungry , you can eat them.4. I know quite __________ people because I’ve worked here for nearly 20 years.5. Can I drink ________ water I am still very thirty.
1.little 2. few 3.a few 4. a few 5. a little
( ) 1. He has _________ bread to eat, so he often gives me some. A. too much B. too many C. little D. a few( ) 2. I can’t listen to the waiter clearly because I know _________ English. A. a few B. a little C. little D. many( ) 3. Two hundred yuan is _________ for me to use in a week. A. too many B. too few C. enough D. many( ) 4. It took us _________ time to finish our homework today. A. too much B. too many C. many D. a few ( ) 5. The voice of her daughter sounds ________. A. sweet B. sweetly C. happiness D. happily( ) 6. Robert is a man of_______ words. A. little B. a little C. few D .a few( ) 7. Many people have tried ,but ________ have succeeded in completing the task.A. the few B. a few C .few D. some( ) 8. He knows ______about French .You may go and ask him about it.A. a few B .few C. little D .a little( ) 9. There are ________ books for the children. A. a little B. too much C. on D. few( ) 10. Although she’s wealthy, she spends_______ on clothes. A. little B. few C. much D. a little( ) 11. Guests come here but_______ stay overnight. A. few B. little C. much D. enough( ) 12. ——There is _____tea in your cup .Would you like some more ——No, thank you. A. few B. a few C. little D. a little
1-5
ACCAA
6-12 CCDDAAC
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