英语八年级上册Topic 3 Must we exercise to prevent the flu?优秀课件ppt

这是一份英语八年级上册Topic 3 Must we exercise to prevent the flu?优秀课件ppt，文件包含演示文稿1pptx、U2T3D-1amp3、Exercisesong_标清mp4等3份课件配套教学资源，其中PPT共33页， 欢迎下载使用。

Let's enjy a sng.
Exercising is very imprtant fr ur health. But hw t exercise well? Let's think abut these questins:
1. What shuld we d befre we exercise?
We shuld warm up. we need t stretch ur legs, arms, back and neck befre we d any difficult activties like running.
Listen t 1a and mark True r False.
It’s imprtant t warm up befre exercising. ( ) It’s necessary t buy exercise equipment. ( ) We shuld chse a sprt that we enjy. ( ) We shuldn’t drink a lt f water when we exercise. ( ) We had better nt exercise when we are hurt. ( )
Tick the fllwing ideas yu think are crrect befre reading. Then read the passage and check.
The mre exercise, the better. ( )We shuld stp exercising when we are hurt. ( )Drinking while playing sprts is bad fr ur health. ( ) Exercising in a gym is nt a gd idea. ( )
Read 1a again and fill in the blanks.
Hw t Exercise Well We need t __________. We shuld _________________________. We had better nt ______________. We shuld __________________. We mustn’t ________ when we are hurt.
find gd places t exercise
wrk t hard
drink enugh water
Read 1a again and repeat.
Warm up. It is imprtant t warm up befre yu exercise. Yu need t stretch yur legs, arms, back and neck befre yu d any difficult activities like running.Find gd places t exercise. Yu d nt need t spend a lt f mney exercising.Yu can run r play sprts in a park r in yur schl gym.Yu dn't need t buy exercise equipment fr yur hme.Just get yur bdy mving!
Dn’t wrk t hard. Chse a sprt that yu enjy and then yu exercise will be fun instead f wrk. Als, yu nly need t exercise a few times each week. If yu exercise fr 30 minutes each time, yu will stay healthy.Drink enugh water. It is imprtant t drink water when yu exercise. Yur bdy needs the water fr energy and fr keeping cl.Be careful! If yu hurt yurself while yu are exercising, rest until yu feel better. Exercising when yu are hurt is bad fr yur health.
1. spend 的用法：
spend 花费 过去式：spent 主语必须是人， 常用于以下结构： sb. spend time/mney n sth. 花费时间金钱在某事上sb. spend time/mney（in）ding sth. 花费时间金钱做某事①我们不应该花费太多时间玩游戏。We shuldn’t spend t much time ________(play) cmputer games.②I spent 30 yuan n this bk.
cst的主语是物或某种活动， 还可以表示“值”， 常见用法如下：sth. csts (sb.) ＋金钱 某物花了（某人）多少钱。eg：A new cmputer csts a lt f mney. 买一台新电脑要花一大笔钱。
take后面常跟双宾语， 常见用法：It takes sb. ＋时间＋t d sth. 做某事花了某人多少时间。eg：It tk them three years t build this rad. 他们用了三年时间修完了这条路。
另外三个含义为“花费”的词的用法：
pay的基本用法是：sb. pay mney fr sth. 付钱（给某人）买……。eg：I have t pay 20 punds fr this rm each mnth. 我每个月要付20英磅的房租。
t buy
2. buy sth. fr sb. = buy sb.sth. 为某人买东西eg. I bught a shirt fr my father. = I bught my father a shirt. 我为爸爸买了一件衬衣。
3. instead 作副词,是“代替”、“顶替”的意思，常用于句末。 eg. Mr.Wang is ill, I will take his class instead． instead f为介词短语,它后面可跟名词、代词、动名词、介词短语或形容词等。eg. I will clean the windw instead f him. We will skate instead f playing ftball.
Rewrite 1a and give a reprt.
Yu can write like this:Hw t exercise well When we are exercising, we shuld pay attentin t the fllwing rules. First, … Secnd，… Third，… Then，…
Talk abut hw t exercise well accrding t the suggestins in 1a, yu can add yur wn suggestins:
A: Exercising is very imprtant fr pur health, but hw t exercise well? can yu give me sme suggestins?B: Yu shuld : That's a gd idea.C: Yu'd : ...
must和have t的区别和用法
1. 强调重点不同两者都表示“必须”，但must侧重于说话者的主观看法，have t则侧重指客观需要，含有“不得不”或“被迫”之意。比较：Yu can brrw my car, but yu must bring it back befre ten. 你可以借我的汽车，但必须在10点以前开回来。I lst my pen, s I have t buy ne. 我的钢笔丢了，所以得去买一支。
2. 所用时态不同must 没有人称和时态的变化，而 have t则有人称和多种时态形式。如：She must g with me. 她必须同我一起去。We had t brrw a lt f mney. 我们不得不借一大笔钱。She has t sell her huse. 她不得不把房子卖掉。
3. 动词搭配不同根据语义的需要，have t可以与情态动词搭配使用，而must本身作为情态动词，显然不能这样用。如：He may have t cancel the plan. 他可能需要打消这个计划。If we missed the train, we shuld have t wait an hur at the statin. 假如我们赶不上这班火车，我们就得在车站再等一小时。
4. 否定式的意义不同must 的否定式 mustn’t 意为“不准”，“不允许”；而 have t 的否定式 dn’t have t 意为“不必”(=needn’t)。比较：Yu mustn’t tell him abut it. 你一定不要告诉他这件事。(这可能是秘密)Yu needn’t tell him abut it. 你不必告诉他这件事。(他可能知道了) Must we finish it nw? 我们必须现在完成它吗？N, yu needn't. / N, yu dn't have t. 不，不必。
Mdal Verbs (Ⅲ): must/have t
N I dn’t
desn’t have
N yu needn’t
N yu dn’t have t
Hw did have
Reflexive Prnuns反身代词
反身代词在句中的用法:1. 用作同位语(加强被修饰词的语气，紧放在被修饰名词后, 或句末):The bx itself is nt s heavy. 箱子本身并不重。 Never leave t thers what yu shuld d yurself. 不要把自己该做的事留给别人做。2. 用作宾语(动词或介词的宾语):Take gd care f yurself. 好好照顾你自己。
3. 用作表语The pr by was myself. 那个可怜的孩子就是我自己。4. 反身代词不能做主语，但可作主语同位语，放在主语后或句末。 I went t the cinema myself. 我自己去了电影院。它还可以借助 and, r, nr 等连词与其他名词一起构成并列主语(且位于并列主语的后部) :My brther and myself went there yesterday. 昨天我兄弟和我一起去了那儿。
用适当的反身代词填空。
① I cked ______ a meal and then I watched TV.② If yu dn’t help him, he’ll have t d it all by _________.③ I put the fd n the table and asked them t help __________.④ Jack and Peter, did yu clean the rm ________ ?⑤ Be careful with that knife r yu’ll cut ________.⑥ Jhn hurt ______ when he was playing ftball.
由反身代词构成的常见短语：
1. dress neself 自己穿衣 2. cme t neself 恢复知觉3. enjy neself 过的开心4. frget neself 忘我、失态5. help neself t 随便吃、随便用 6. make yuself at hme 不受约束 7. say t neself 心里想 8. talk/speak t neself 自言自语 9. teach neself 自学
nt t frget
Tday we learn:
1. Suggestins abut hw t exercise well.
2. must和have t的区别和用法。
3. 反身代词的用法。
Write Yur Own Newspaper
Make a handwritten English newspaper abut keeping healthy.The fllwing infrmatin will help yu.