初中英語(yǔ)滬教牛津版（2024）七年級(jí)下冊(cè)Unit 5 Water精品課件ppt

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Learning bjects
Tngue Twister
Challenge yurselves
Hw many snacks culd a snack stacker stack, if a snack stacker snacked stacked snacks?如果零食容器能裝零食的話，一個(gè)裝零食的容器能裝多少零食?
Read ludly.
認(rèn)識(shí)輔音連綴/str/。 /str/是字母組合str在單詞中的讀音。朗讀下列含有/str/的單詞和例句，注意劃線部分的讀音。
It was strange fr him t walk n the street all night.
認(rèn)識(shí)輔音連綴/spl/。 /spl/是字母組合spl在單詞中的讀音。朗讀下列含有/spl/的單詞和例句，注意劃線部分的讀音。
認(rèn)識(shí)輔音連綴/spr/。 /spr/是字母組合spr在單詞中的讀音。朗讀下列含有/spr/的單詞，注意劃線部分的讀音。
認(rèn)識(shí)輔音連綴/skr/。 /skr/是字母組合skr在單詞中的讀音。朗讀下列含有/skr/的單詞，注意劃線部分的讀音。
A1 Listen carefully and circle the wrd yu hear frm each pair.
A2 Read these sentences. Pay attentin t the letters in bld.
1. The strawberry plant in the street lks strange, but the strawberries are nice and sweet.2. Heavy rain splattered n the rf and splashed against the windws f the splendid huse.3. Sprinkle the seeds arund. Spread them ut. In spring, yu will have green spruts.4. The screenwriter screamed when she saw the script.
becmes vapur
heats the water
Cls and frms small drps f water
Put the fllwings in the crrect rder
Use the flw chart t retell the jurney f this drp f water.
Pre-writing
What are used in these experiment?
What experiment is the by ding? In grups, describe the pictures.
An experiment
Things t use
Steps t fllw
Result t find
Lk at the pictures carefully, and answer the questins.
The by is adding sme salt t the glass.
The by is stirring the water. Then the salt disappears.
The by is heating the water.
The by is s happy because the water starts t dry up.
Finally, …(start t dry up)
Heat the water. (a white clud, be made up f, small drps f, cntinue)
Stir the water. (disappear, becme part f)
Add sme salt t a glass f water.
A flw chart
Hw t write an experiment?
1. 多用無(wú)主語(yǔ)的祈使句。2. 常用表示時(shí)間先后順序的序數(shù)詞或時(shí)間副詞。
Add sme salt t… Heat the water.First, … Secnd, …Then, … Finally, …
B Write a shrt paragraph abut this experiment. Use the flw chart t help yu.
First, add sme salt t a glass f water. _______________________________________________________________________________________________________________________________________________________________________________________ The salt turns int crystals.
Then stir the water. The salt disappears and becmes part f the water. Next, heat the water. Yu can see a white clud. It is made up f small drps f water. Cntinue t heat the water. Finally, the water starts t dry up.
G ver the prcess f hw water becmes rain n Page 66. Take ntes n the imprtant steps.
A flw chart abut hw water becmes rain
First, … heats the water …
Then, … becmes vapur …
Next, … frms cluds …
Finally, … cls …
In grups, make a flw chart abut the whle jurney f water. Here is an example:
The sun heats the water.
It becmes vapur and ges up t the sky.
The clud cls and frms small drps f water.
請(qǐng)根據(jù)以下表格的內(nèi)容提示，寫一篇80 詞左右的英語(yǔ)短文，說(shuō)明為什么要節(jié)約用水和如何節(jié)約用水，可適當(dāng)發(fā)揮。
Step 1. 謀篇布局
文章內(nèi)容可分成兩段。第一段說(shuō)明_______________，第二段提出_______________。文章主要采用_______人稱，___________時(shí)態(tài)。
你能想起與短文有關(guān)的學(xué)過(guò)的詞匯嗎？試一下吧！1. 對(duì)某人是重要的2. 大部分3. 太多的鹽4. 少量的水5. 在很多不同的方面6. 讓水龍頭開著7. 代替；而不是
1. be imprtant t sb2. mst f3. t much salt 4. a little water5. in many different ways 6. leave the tap n7. instead f
Step 2: 激活詞匯
運(yùn)用以下結(jié)構(gòu)，可以讓你的文章更出彩哦。1. It is +形容詞+ fr sb + t d sth “對(duì)某人來(lái)說(shuō)做某事是……的”【例】對(duì)他來(lái)說(shuō)，收集特別的硬幣是有趣的。 It is interesting fr him t cllect special cins.【譯】對(duì)我們來(lái)說(shuō)，節(jié)約用水很重要。
It’s very imprtant fr us t save water.
Step 3: 精彩結(jié)構(gòu)
2. remember nt t d sth. “記得不要做某事”【例】記得不要在湖里游泳。 Remember nt t swim in the lake.【譯】當(dāng)我們不用水時(shí)，記得不要讓水龍頭開著。
Remember nt t leave the tap n when wedn’t use water.
3. stp ding sth “停止做某事；不做某事”【例】?jī)鹤铀酥?，李先生就不看電視了? After his sn fell asleep, Mr Li stpped watching TV.【譯】因?yàn)樗侨绱酥匾晕覀儜?yīng)該停止浪費(fèi)水。
We shuld stp wasting water because it is s imprtant.
Step 4: 參考連接詞 and, then, s, because, after that, finally …
Water is very imprtant t peple. Hwever, mst f the water n Earth is sea water. We cannt drink it because there is t much salt in it. Only a little water is fresh and drinkable. S it is imprtant fr us t save water.We can save water in many different ways. Fr example, remember nt t leave the tap n when we dn’t use water. Besides, we can reuse water instead f puring it away. We shuld stp wasting water because it is s imprtant.
Hmewrk
Finish the writing exercise paper.
Where there is water, there is life.