外研版 (2019)必修 第二册Unit 1 Food for thought课文配套ppt课件

这是一份外研版 (2019)必修 第二册Unit 1 Food for thought课文配套ppt课件，共17页。PPT课件主要包含了Revision，Practice，Summary，Prodution等内容，欢迎下载使用。
Underline the sentences belw in the reading passage.
a was able t hld a knife and frk and chpsticks!b there are still sme dishes that Dad dare nt try even after many years f marriage t my mther.c and I just have t find a way t get him int the kitchen!d 'd better nt eat t much rast fd as it may make us suffer frm heat inside ur bdies, “Yu needn't try it if yu dn't want t,” Mum said,...
Presentatin
Nw talk abut the functin f mdals. Then match them.
1 be afraid t d smething2 nt be necessary t d smething3 give advice t d r nt t d smething4 be necessary r give strng advice t d smething5 have the ability t d smething
a was able t hld a knife and frk and chpsticks!b there are still sme dishes that Dad dare nt try even after many years f marriage t my mther.c and I just have t find a way t get him int the kitchen!d 'd better nt eat t much rast fd as it may make us suffer frm heat inside ur bdies, “Yu needn't try it if yu dn't want t,” Mum said,...
a-5 b-1 c-4 d-3 e-2
be afraid t d sth.
nt be necessary t d sth.
Underline the mdals in the intrductin t an app and talk abut their meanings.
be necessary t d sth.
have the ability t d sth.
give advice t d sth.
dn't have the ability t d sth.
Mdals情态动词 (1)
情态动词（Mdals）本身具有一定的词义，不能独立作谓语，必须和动词原形一起构成谓语。情态动词虽然数量不多，但用途广泛。常用的情态动词包括can (culd), may (might), will (wuld), shall (shuld), must, need, dare, had better, ught t, used t等。
几种常见情态动词的用法：
be able t后接动词原形，表示某人做某事的能力，可用于大多数时态。用于过去时态时，还可以表示“某人过去或当时成功地做了某事”。例如：I will be able t speak Japanese in anther few mnths. 再过几个月，我就能讲日语了。They were able t escape frm the building when the fire brke ut. 火灾发生时，他们设法从那栋建筑里逃了出去。
【be able t 与can的辨析】 be able t表示“能力”时，和can的用法相似。但 也有区别：be able t有多种时态，如: was/were able t, will/ shall be able t, have/has been able t等, 而can只有两种时态，即can和culd。be able t强调通过努力而获得的能力，而can则强调自身已具有的能力。如： She can sing the sng in English. 她能用英语唱这首歌。 He will be able t sing this sng in English in a few minutes, t. 几小时之后，他也能用英语唱这首歌。
be able t 强调一种结果，而can只强调一种可能。如: Luckily, he was able t escape frm the big fire in the end. 幸运的是，他终于逃出了大火。 If he gt here a few hurs earlier, I culd save him. 要是他早几小时来，我还能救他。be able t的否定形式是在be后面直接加nt，即be nt able t，如： The kid is nt able t write. 这孩子不会写字。 But we may nt be able t d this fr every scenari. 但是我们不能每一种场景下都这么做。
dare作情态动词时，主要用于否定句、疑问 句和条件从句中，一般不用在肯定句中。 如：Hw dare yu say I’m unfair? 你怎么敢说我不公平？ 情态动词dare可以有过去式dared，但也可以 直接用dare表示过去式，或后接动词完成式， 如： Mther dare(d) nt tell father she'd given away his ld jacket. 母亲不敢告诉父亲她把他的旧上衣送人了。
2. dare ＆ need
dare用作实义动词，有时态、人称和数的变化。所不同的是，作实义动词时，在肯定句中dare后面通常接带t的不定式；在否定句和疑问句中，dare后可接带t或不带t的不定式。如： a. I wnder hw he dares (t) say such things. 我纳闷他怎么竟敢说出这样的话来。 b. He des nt dare (t) answer. 他不敢回答。need表示“需要”或“必须”，作情态动词时，用 于否定句和疑问句中，在肯定句中一般用 must, have t, ught t或shuld代替。 如：Yu needn’t cme s early. 你不用这么早来。
need作为行为动词，可用于肯定句、否定句和疑问句中，其后可接名词、代词、动名词或带 t 的动词不定式为其宾语。如： Yu need t practice reading alud every day. needn't后接完成式可以表示过去做了一件本来不必要做的事情，如： ---Did yu answer the letter yesterday? ---Yes, I did. ---But yu needn't have answered it.
注意对need问句的回答:--Need I finish the wrk tday?--Yes, yu must./ N, yu needn’t./ N, yu dn’t have t.needn’t 对其它情态动词的回答:--Shall I tell Jhn abut it?--N, yu needn’t/ dn’t have t.--Must we d it nw? --N, yu needn’t/ dn’t have t.
have t和must的意义相近，只是 must侧重表示说话人的主观看法，而have t 则表示客观需要，如： I must study hard. Yu have t hand in yur cmpsitins befre next Mnday.have t 的否定形式是dn’t have t, 相当于needn’t，如： They dn’t have t buy a cmputer at present. 他们目前没有必要买电脑。have t 有人称、数和时态的变化，如： They had t speed up, fr the weather turned terrible. He has t stay at hme because f illness.
had better后接动词原形，意为“最好”，用于现在时和将来时，可用于一切人称，没有任何词形变化。had better的否定式是在其后加nt，疑问式是把had和nt提前，例如： a. Yu’d better sit here and have a rest. 你最好坐在这儿休息一下。 b. She had better nt tell lies any mre. 她最好再也别撒谎了。 c. Hadn’t the dctr better see him? 医生是不是去看看他比较好？
4. had better
When we talk abut the fd, gd table manners are much imprtant.
While ging n yur first trip t the UK is exciting, new and different custms can als be cnfusing. Table manners are n exceptin. But dn't wrry - here are smetips:Yu _______ wait until everyne else has been served befre yu start eating.Smetimes there are s many knives and frks that yu _______ pick them up in case yu get it wrng. The trick is t start with the nes n the utside.
Cmplete the tips fr gd table manners with the crrect frm f the mdals in Activity 1.
When yu finish yur meal, yu _________ place the knife and frk tgether n yur plate with the handles at the fur ' clck psitin.Table manners, hwever, can differ in different situatins. Fr example, yu ______ use a knife and frk when eating a hamburger r pizza. Just remember: when in Rme, d as the Rmans d, and yu will ________ enjy the lcal cuisine!