Grammar and usage(1): Modal verbs: general introduction教学创新设计

Module 4

Unit2

Grammar and usage Modal verbs: general introduction Learning aims: By the end of the class, students will: 1.

understand the basic functions of modal verbs 2.

be able to employ different kinds of modal verbs in different situations

Step 1. Lead in

Listen to a song. While listening, try to fill the blanks according to the lyrics. If I had to live my life without you near me The days ________ all be empty The nights ________ seem so long With you I see forever oh so clearly I _________ have been in love before But I've never felt this strong Our dreams are young and we both know They take us where we want to go Hold me now Touch me now I don't want to live without you Nothing's gonna change my love for you You _______ __ know by now how much i love you One thing you _____ be sure of I never ask for more than your love Nothing's gonna change my love for you You ______ ___ know by now how much i love you The world _____ change my whole life through But nothing's gonna change my love for you

Step 2. Grammatical characteristcs of modal verbs 1.

情态动词

不能单独做谓语，除_______外，后面只能接_____________。

2. 情态动词没有人称，数的变化，但有些情态动词，如____、_____、______也有一般式和过去式的变化。

3.情态动词的“时态”形式并不是区别时间的主要标志。

一般式——

进行式——

完成式/过去式——

Step 3. Fuctions of modal verbs 1.

Read the instructions on P28. After reading, answer the question:

How many functions are mentioned in the text? What are they? __________________________________________________________________________________________________________________________________________ 2.

Detailed analysis of the functions of modal verbs

1)

Ability 形式

意义

Can Could 注意：表示能力时，情态动词can表示______________，could表示________，而表示将来的能力时则用______________。

2）Obligation___________ 情态动词

用法说明

must do sth

have to do sth

should/ought to do sth

3)Certainty 情态动词

Must Will should ought to Can Could may /might _______，_____想要做

不得不，________去做

_______，出于_____ Possibility 可能

Impossibility 不可能

4）Permission ______________________表示征求允许，__________和_________语气更加委婉。

注意:________和_________引导一般疑问句表示征求允许时，回答应用Yes, ____________/ No, ______________.

5)Request _______________________等四个情态动词可表示提出请求，按照_______程度排序为_______>_______>________>_________.

6) Make suggestions/ make offers/ give advice make suggestions make offers give advice