Unit1GrammarModalVerbs1課件-高中英語外研版（2019）必修第二冊

1、Unit 1 Food for thoughtUsing languageModals (1)情態(tài)動詞的語法特征* 情態(tài)動詞有一定的詞義，但不能單獨做謂語, 后面只接不帶to的不定式，即動詞原形。 * 情態(tài)動詞基本上沒有人稱和數(shù)的變化, 但有些情態(tài)動詞, 如can, will，may等有一般現(xiàn)在時和一般過去時，be able to有不同的時態(tài)變化。情感態(tài)度情態(tài)動詞的語法特征*情態(tài)動詞的過去式并不一定表示過去時間，可以表示一種委婉、禮貌的語氣。e.g Could I use your dictionary? Would you please do me a favor? The young sh

2、ould care for the old. 常見的情態(tài)動詞may/mightcan/couldmustwill/would shall/shouldhave toneedused todare ought tobe able toActivity 1 What do they mean? Activity 2dare not be afraid to do sth.neednt not be necessary to do sth.have to be necessary to do sth.be able to have the ability to do sth.arent able t

3、o dont have the ability to do sth.had better give advice to do sth.e.gThe man can/could speak two foreign languages.Yesterday I was able to get home before the heavy rain.can/could VS be able to*can/could表示習(xí)慣具備的能力，而be able to通常表示通過努力達(dá)成的一次性能力； can/could 主要是一般現(xiàn)在、一般過去時，而be able to有較為豐富的時態(tài)變化。must VS hav

4、e toe.gAs a Chinese, we must build our country well and mustnt forget our duty. The poor boy had to face the trouble bravely. -Must he finish the job today? - Yes, . -No, .he musthe neednt/doesnt have to*must表示主觀上“必須”,而have to通常表示出于客觀原因“不得不”; must無時態(tài)變化,而have to有時態(tài)變化;mustnt“禁止/不許”,neednt“不必”。 During

5、the holidays, I didnt have to get up early.But now its time to learn at school, so I have to getup early every day. To be honest, I was much inspiredwhen I watched the Peking Winter Olympic Games. Im determined to study hard, so I think I must get up early and mustnt waste any time. Im sure I will b

6、e able to realize my goal. Come on! Activity 3 Translate the following passage.had betterActivity 4 Translate the following sentences. 你最好不要一下子做所有的事情， 最好是一件一件地做。 . . Youd better not do all the things at a time Youd better do them one by oneneed VS dare既可用為情態(tài)動詞，又可用作實意動詞。“需要”“敢(于)”Activity 4 Translate

7、 the sentences in two ways.1. 蘇翊鳴敢于挑戰(zhàn)自己。 .2. 朱易還需要再磨練一下。(steel oneself) . Su Yiming dares to challenge/dare challenge himself. Zhu Yi still needs to steel/need steel herself.1. Su Yiming dares to challenge/dare challenge himself. . . Activity 5 Change the sentences into negatives.2. Zhu Yi still nee

8、ds to steel/need steel herself. . .Su Yiming doesnt dare to challenge himselfSu Yiming dare not challenge himselfZhu Yi still doesnt need to steel herself.Zhu Yi still need not steel herself.*need/dare作情態(tài)動詞用時無人稱和數(shù)的變化， 但是作為實意動詞用時有人稱和數(shù)的變化。 Need you have lessons every day? Yes, . No, . Activity 6 Answe

9、r the question.we mustwe neednt“必須”“不必”Activity 7 While going on your first trip to the UK is exciting, new and different customs can also be confusing. Table manners are no excep-tion. But dont worry-here are some tips.Activity 7 *You wait until everyone else has been served before you start eating

10、. *Sometimes there are so many knives and forks that you pick them up in case you get it wrong. The trick is to start on the one outside. have todare not *When you finish your meal, you place your knife and fork on your plate with the handles at the four oclock position.had better*Table manners, how

11、ever, can differ in different situations. For example, you - use a knife and fork when eating a hamburger or pizza. Just remember, when in Rome, do as the Romans do, and you will enjoy the local cuisine! dont have tobe able toneednt/ Summarydare not neednt have to be able to not be able to had better be afraid to do sth.not be necessary to do sth.be necessary to do sth.have the ability to do sth.dont have the ability