牛津上海版 (五四制)八年级下册（新版）Unit 2 Water教案设计

这是一份牛津上海版 (五四制)八年级下册（新版）Unit 2 Water教案设计，共18页。

Teaching aims：
Intrduce the tpic water. Ask students t wrk in pairs fr a few minutes, and t write dwn anything they knw abut water. Ask 3 students t tell their answers and write them dwn n the black bard. Then discuss their ideas briefly and d the exercises.
Teaching Imprtant Pints :
Try t knw smething abut water
Teaching Prcedures:
1: A Free Talk
What d yu knw abut water
*Peple can live withut fd fr mre than a mnth, but they can’t live withut water fr mre than week. Lsing mre than 20% f the nrmal water cntent f ur bdies will result in a painful death.
*Abut 65-70% f ur bdies are water, s it is imprtant fr us t drink a lt f water. Each day, a nrmal persn will drink abut 2.4 liters f water r ther drinks. In America, the average persn will use 260 liters f water a day and n average, each persn will drink 60, 600 liters f water in his/her life.
*Sme peple believe that ur emtins and mental stability are affected when there is a full mn because the gravitatinal pull f the mn affects the water in ur bdies in the same way as it affects the cean tides. Legends say that werewlves appear when there is a full mn.
*Yu need mre water during and after exercise because yu lse water by sweating and yu need t replace the water that is lst.
*Water freezes at 0℃ (32℉). When it freezes, it changes int ice. Water bils at 100℃(212℉) when it changes its frm int a gas, becming steam.
2: Lk and think
* Chse the write answer
1 Yu culd live withut water fr a few ______.
a days b weeks c hurs
2 Yur bdy needs abut ______ liters f water daily.
a tw b fur c eight
3 When yu exercise, the amunt f water yu need _____.
a increases b decreases c remains the same
4 When yu freeze water, it becmes a _______.
a liquid b slid c gas
5 Abut _______ f the earth is cvered by water.
a ne third b ne half c tw thirds
6 The scientific symbl fr water is ________.
a H2O b HO2 c H2O2
* Use the picture t put these sentences in the crrect rder.
( ) It flws t the sea.
( ) It runs int streams and rivers.
( ) It rises frm the sea t the sky.
( ) Water falls frm the cluds as rain.
( ) It falls as rain again.
Hmewrk:
Preview the text: Water talk
The secnd perid
Teaching aims:
1 Try t understand the whle lessn and read it fluently. The tne and prnunciatin shuld be basically right.
2 Learn the new wrds and phrases.
Teaching aids:
Multimedia equipment
Teaching Imprtant Pints :
Hw t understand the test cmpletely .
Teaching Difficult Pints :
Teaching Prcedures:
1: A Free talk
(Ask tw Ss t talk abut sme measures we use t save water and say the fllwing.) T: Very gd . Thank yu fr yur perfrmance.
We have learnt that water is very imprtant and we dn’t have enugh water in the wrld. If we dn’t have water in ur daily life, the situatin will be terrible and we all will die. Sme peple in ther places are suffering frm lack f water, such as African peple. We shuld treat every drp f water seriusly and shuld n waster even a drp f water.
Shw the text n the screen then give brief intrductin t the students and then let Ss read the new text after the recrding .
2: learn sme new wrds.
1 brush n. 刷子，毛刷
v. 刷，擦，拂拭 We brush ur teeth with a tthbrush everyday.
2 pur v. 灌注，倾泻，涌入，流，倾盆大雨
pur il n the fire 火上加油
Tears pured frm her eyes.
Peple pured int he hall.
Please pur me a cup f tea.
At 5 ’ clck wrkers pured ut f the factries.
It was puring.
3 sink n. 水槽
I left the sap by the side f the sink.
v. 使…下沉
The ship is sinking.
4 vanish v. 消失
Frests are vanishing frm ur land.
5 drain n. 排水管
Yur kitchen drain has becme blcked by tea leaves.
v. 排去
The water drained away slwly.
6 freeze v. （使）结冰，凝固
The terrible news frze my bld.
freezing adj. 极冷的
frzen adj. 冻结的 frzen fd
7 impatient adj. 不耐烦的，没耐心的 pp. patient 有耐心的
I’m getting impatient because I’ve waited fr an hur.
patience n. 耐心，容忍
I have n patience with him again.
8 bey v. 服从，顺从，听话
They refused t bey (the rder).
9 faint adj. 微弱的
Did yu hear the faint man just nw?
10 flat adj. 漂浮，飘浮
Wd flats n water.
11 cmfrtably adv. 舒适的，舒服的
cmfrtable adj. 安乐的，舒适的
cmfrt n. 慰藉，安乐
I feel very cmfrtable in this chair.
The lvely baby was a cmfrt t her.
12 view n. 景色，风景
The huse has a view ver the sea.
n. 看法，观点
What is yur view n schl punishments?
13 speed v. 加速
speed up
n. 速度
at a speed f 80 miles an hur
14 nd v. 点头
She ndded t shw that she agreed with me.
n. 点头
He greeted me with a nd.
15 relax v. 松弛，放松，休息
After a day f hard wrk, I relaxed at hme.
16 puzzled adj. 困惑的，疑惑的
puzzle v. （使）迷惑，（使）为难，迷惑不解
n. 难题，迷
a crsswrd puzzle
I was puzzled hw t d it.
Their strange relatinship puzzles me.
17 treatment n. 治疗，处理
His treatment f the animal was cruel.
hard treatment: 虐待 be under treatment：在治疗中
treat v. 对待，处理
18 thrugh adj. 完全的，彻底的
We’d better have a thrugh cleaning t welcme the Chinese New Year.
thrughly adv. 完全地，彻底地
We have cleaned the huse thrughly t welcme the Chinese New Year.
19 chemical n. 化学制品
They added a few chemicals t clean up the water.
chemical adj. 化学的 chemical change
chemistry n. 化学 She is ut chemistry teacher.
20 sewage n. 污水
We can’t let ut sewage because it will pllute the water.
21 plant n. 工厂，仪器
When the plant clsed dwn, many wrkers lst their jbs.
n. 植物
v. 种植
22 pump v. 抽水
Can yu help t pump the water frm the well?
The heart pumps bld.
n. 抽水机，打气筒
23 precius adj. 珍贵的，宝贵的
Nthing is mre precius than friendship.
The beautiful vase is very precius.
24 weird adj. 怪异的，奇怪的，不可思议的
Tm had sme weird ideas.
3: Practice
Play the tape fr students t listen and repeat, then answer sme questins.
4: Read and think
Cmplete the fllwing blanks.
1 PETER Why was the vice impatient?
JUDY ___________ Daisy was ______________ ______________.
2 PETER Why did Daisy nd her head?
JUDY ____________ she knew ____ _____ _____ _____ was.
3 PETER Why did the water g t a treatment wrks?
JUDY ____________ it _____ _____ _____ _____ jurney.
4 PETER Why did the water say, ‘I’ll be back in the sea again.’?
JUDY ____________ it _____ _____ the sea _____ _____ _____ place.
5 PETER Why did the water say it was like liquid gld?
JUDY ___________ it believed that _____ _____ _____.
6 PETER Why did Benny think his sister was weird?
JUDY _________ she said, ‘_____ _____ _____ _____ _____ _____.’
4: Explain the language Pints :
1 lk arund: 向四周看
I lked arund and fund there was n ne in the street at all.
2 It is /was time t d sth. 是该…的时候了,到…时候了
It is time t have lunch. 该吃饭了。
It was time fr him t stp his revenge.
It is time t have a relax if there is n wrk t d.
3 finish ding sth.
finish with sth. 完成某事
Culd I brrw the bk when yu have finished reading it?
I have finished with all my hmewrk.
The wrk has nt been finished yet. Anther 3 days are needed t finish it.
After finishing playing ftball, yu can have a bath.
4 It is (nt) + adj. + fr sb. t d sth. 某人做某事（不）容易
It is exciting fr us t g t the mvies.
It is nt easy fr him t win the first prize.
It is impssible fr peple t live n the sun.
5 get cleaned up = be cleaned up
Hmewrk:
The third perid
Teaching Aims:
1 Review the new wrds and expressins and the grammatical pints
in the chapter
2 D sme Exercises
Teaching Imprtant Pints :
Master hw t talk abut amunts.
Teaching Difficult Pints :
The different usage f a few, a little, few and little
Hw t understand the listening and the sequences f events.
Teaching Prcedures:
1:Revisin
1 Shw the new wrds f chapter 6 n. First ask a student t read
alud, crrect the wrng prnunciatin, and then ask the whle
class t read tgether.
2 Read the text after the tape t understand it better
2:Ask student t d the vcabulary exercises C1, C2 and C3.
3: Listening
Put the picture int right rder.
1 One day, Suzy’s mther gave her ne-yuan cin. It was rather dirty, s Suzy put it in the sink and washed it. When the cin was nice and clean, it suddenly started talking t Suzy.
This listening is aimed at training students’ understanding f the rder f the events. Ask the students t see hw the drp travels in ‘Water talk’.
3 Play the recrding nce, while students listen but d nt
Write anything. Tell them t listen fr the sense and the main
pints. Then replay the recrding and students must cmplete
the exercise. Replay it a third time，explaining any prblems.
4:Gramma: Learn hw t talk abut amunts
1 He tk a few biscuits.
He tk a little butter.
*Cmpare the tw sentences and ask the students t discuss in pairs t tell the differences.
*Explain that “a little” and “a few” all mean 数量很少的, “a few” 用于修饰可数名词, “a little” 修饰不可数名词，它们都表示肯定的含义
*a few = sme, several a little = sme
eg. I want a little cffee.
Give me a few apples.
He tk few biscuits.
He tk little butter.
*Cmpare the tw sentences and ask the students t discuss in pairs t tell the differences.
*Explain that “few” and “little” all mean 数量少到几乎没有, “few” 修饰可数名词, “little” 修饰不可数名词。都含有否定涵义。
*few = nt many little = nt much
eg. Little f his time is spent n bks. 他很少花时间在书本上。
There are few eggs in the fridge, are they? 冰箱里几乎没有鸡蛋，是吗？
“few”, “a few”, “little” and “a little” 既可做形容词又可做代词。
eg. –- D yu want any cffee?
-- A little , please.
quite a few = many
eg. I have cllected quite a few stamps abut the Olympics. (=many stamps)
“a little” and “little” can be used as adv.
eg. He talked little abut his father. 他很少谈论他的父亲。
It rained a little during the night. 夜里下了点雨。
Time is very limited. Culd yu pssibly drive _a little_ faster?
There are abut 50 guests cming. We need _a few__mre chairs.
Hmewrk:
The furth perid
Teaching Aims:
1 Review new wrds and expressins in the chapter
2 Further train students’ ability f talking abut amunts
3 D sme Exercises
Teaching Imprtant Pints :
Master the usage f a lt f, much, many, n, nne
Teaching Difficult Pints :
The different usage f a lt f, much, many, n, nne
Teaching Prcedures:
1:Revisin
1．Spell the new wrds and expressins rally．
2．Read the text after the tape
3．Cmments n hmewrk
2: Further train students’ ability f talking abut amunts
There is much (a lt f) bread n the plate.
He has many (a lt f) American stamps.
* Cmpare the tw sentences
* Explain that “a lt f” can mdify bth [C] nun and [U] nun. “Many” can nly mdify [U] nun and “much” can nly mdify [C] nun.
* Pint ut that “a lt f” nly can be used in definite sentences (肯定句). In negative r interrgative sentences (在否定句和疑问句中)， we shuld change “a lt f” int “much” r “many”.
eg. We have a lt f relatives.
D yu have many relatives?
There are a lt f paper n the desk.
There are nt much paper n the dask.
“a lt” can be used as prnun and adverb.
eg. --- Mum, where are my scks?
--- I saw a lt in the drawer.
It rains a lt in spring in Shanghai. 上海的春天雨水很多。
There is n clue t be fund.
There is nne t be fund. 没有发现任何线索。
*Cmpare the tw sentences.
*Explain that “n” = nt any. It can mdify [U] r [C] nun. It can nly be used as adj. While “nne” is the prnun frm (代词形式) f “n”.
Eg. Time and tide wait fr n man. 时间不等人。
Nne f them can speak Chinese. 他们中没有一个人能说中文。
Jack’s wife likes nne f his friends.
Nne f the blame is yurs. 一点也不怪你。
It is n bad thing. 这不是一件坏事。
Edisn is n genius. 爱迪生不是天才。
We use “Hw many… and Hw much…” t ask the amunts. They mean “有多少…”. “Hw many” is t mdify [C] nun while “Hw much” is t mdify [U].
Eg. Hw many peple are there in yur family?
Hw many supermarkets are there in Shanghai?
Hw much xygen des a persn need everyday?
Hw much (mney) d yu want t finish yur prject?
*When we answer the questin in brief, we can use “many, much, a few, a little, a lt and nne” as prnun t refer t the nun mentined in the questin.
--- Hw much paint d yu need? 你需要多少油漆？
--- I dn’t need much. 我不需要很多。
--- Hw many mbile phnes d yu have? 你有多少部手机？
--- I have nne. 我一部也没有。
D exercise A, B
Hmewrk:
The furth perid
Teaching Aims:
1 Further learn hw t talk abut amunts
2 条件状语从句
Teaching Imprtant Pints :
Master the usage f t much, t little, t few, t many and enugh
Teaching Difficult Pints :
1 The different usage f t much, t little, t few, t many and enugh
2 if 从句
Teaching Prcedures:
1:Revisin
Chse the right wrk.
1 There is ______ (a little, a few) juice in the bttle.
2 There was ______ (little, few) rain in Shanghai last mnth.
3 There is _______ (nt much, nt many) water in the pl.
4 Oh, there is ______ (a lt f, a lt) rubbish n the flr.
5 She is very busy. She has _______ (n, a little) time t watch TV.
6 His pckets are empty. There is ______ (n, nne) mney left.
7 I need ______ (a lt f, many) clth, fr I’m ging t make _______ (many, much) clthes.
8 There are _____ (few, little) peple in the park as it’s cld tday.
2: Talking abut amunts
1 Dn’t give the children t much stress when they are taking an exam.
*Ask tw students t explain the Chinese meaning,
*Explain that “t” used befre “many, much, few, little” means 太多/ 太少.
eg. There are t many cars in the city.
There is t much paper n the desk.
There are t few students in the playgrund. We can’t even have a ftball game.
Dn’t read here. There is t little light here. 不要在这里读书，这里光线不足。
“enugh” 表示足够的, 可以加可数名词或不可数名词。
eg. We have enugh instant ndles in the cupbard.
We dn’t have enugh butter. Peter, g and get sme.
Finish exercise C
条件状语从句
条件状语从句常由连词if引导。条件状语从句不能用will表示将来，要用动词一般现在时来替代，即主语用将来时代替，从句用一般现在时表示将来的意思。
eg. If yu dn’t wrk hard, yu wn’t pass the exam. 如果你学习不用功，你就不会通过考试。
If yu aren’t careful, yu can’t get a full mark. 如果你不仔细，你就得不了满分。
注意：若if 从句中有nt ，一般可以用unless （除非）来代替。
Unless yu wrk hard, yu wn’t pass the exam.
除非你用功学习，否则你就通不过考试。
Hmewrk:
The fifth perid
Teaching Aims:
1 Learn t give reasns and describe hw t d things.
Learn t use graphs and charts
3 Learn t make flw charts
Teaching Imprtant Pints :
We need water fr…
It is very imprtant because…
If we d nt have water,…will…
Teaching Difficult Pints :
1 Hw t gain thers’ supprt
2 Learn t use the graphs and charts and t make flw charts
Teaching Prcedures:
1:Speak up
1 Divide the whle students int fur grups. Grup A stand fr the rdinary peple. Grup B stands fr the restaurant wners. Grup C stands fr the hspital managers and grup D stands fr the factry wners. The teacher is in charge f the water.
2 Ask each grup t have a discussin and list their reasns t have the water and hw they will use the water. Then ask sme representatives t tell the ther students their ideas and list them n the blackbard.
Use the wrd n the blackbard and the wrds in the bk. Ask each grup t chse ne student t have an argument, the ther students and the teacher will be the judge. Then they shuld decide wh is the winner.
2: Using English
1 Fr cunting wrds like thusand and hundred, n –s added unless it is an indefinite number, such thusands f peple. And the students shuld use capital letters fr mnths.
2 Ask the students t finish exercise A and explain any pssible prblem.
3 Ask the students t finish exercise B in pairs and have tw students draw the graphs n the blackbard and explain any pssible prblem.
Finish exercise C
3: Writing
1 Flw charts are used t shw the sequence r rder f things s that we knw hw things are dne step by step. Ask students t d exercise s A1 and A2. Students may need t refer t the main passage again if they have frgtten the rder f the water’s jurney.
2 D exercise B. Students nly t recrd the mre imprtant things in their life frm their birth up t their 30th birthday. Students may first decide hw many steps they want. Tell them they needn’t t give a true accunt. Ask them t use their imaginatin and make their flw charts interesting and tell them they can make all kinds f endings.
3 Ask several students t give their flw charts and ask ther students t have a cmment n them.
Hmewrk: