1、朗文國際英語BOOK2-unit11講解朗文國際英語BOOK2-unit11講解朗文國際英語BOOK2-unit11講解動詞過去式的變化規則1.+ed worked asked played2.+d lived liked moved tasted3.變y為i+ed studied carried tried 4.雙寫最后一個字母再加+ed stopped5.沒有變化 cut hurt put hit let 6.不規則變化（見不規則變化表）發音規律：清輔音后/t/ , liked jumped 濁輔音和元音后/d/ played t,d后讀/id/ wanted needed2021/4/1

2、32enough adv.足夠地 adj.充足的 pron.充分，足夠 Do we have enough sandwiches for lunch?15 minutes is enough for me to have a coffee.He walks slowly enough.I dont have enough money to travel around the world.Six bottles of wine will be enough.You are not old enough to buy alcohol.Enough is enough! 適可而止用法：用于動詞、形容

3、詞、副詞之后，名詞之前。2021/4/133as.as 的用法1）as.as中加入形容詞或者副詞的原級。表示“像一樣”。否定句時可以將第一個as 換成so.eg: She is as beautiful as the flower. He doesnt study so/as hard as his brother.2）可以用as much+不可數名詞 as和as many+可數名詞復數 as表示程度或者數量。eg: You made as many mistakes as I did. They didnt eat as much chicken as we ate.3）as+形容詞+帶不定

4、冠詞的名詞eg: She is as good a cook as her mother.She is as strict a teacher as Miss Yang.2021/4/134情態動詞總結定義：情態動詞用以表明說話者對于某一行為的態度和觀點，主要包括能力、可能、命令、要求、許諾等。情態動詞沒有人稱和數量的變化。通常情態動詞具有多義性。can表示能力、可能性、主觀推測、允許、驚訝等意義。He can speak English.Beijing can be quite windy in spring.That cant be Mary, because she is in hosp

5、ital.Can I use your book?How can you break the world record?can的特殊用法：can help but do 或者cant help doing禁不住做I cant help but think of my parents. / I cant help crying .2021/4/135could表示過去的能力、委婉的建議、可能性、或者表示驚訝。may表示征求許可、同意，可能性、祝愿。May I use your phone?You may pick flowers in this park.It may rain tomorrow

6、.(可能性比can小)May you have a good time!2021/4/136might可以作為may的過去式，表示征求許可、可能性。He asked me if he might use the computer.I am afraid I might burn myself.must主要用來表示責任、命令、推測等。I must go now, or Ill be late,You must finish your homework before 10:00.It must belong to Ann. She plays the guitar.mustnt 表示禁止做某事。

7、You mustnt swim here.2021/4/137should 表示應該或推測（依據一定的依據進行推測，意為“按道理說”）。You should be more careful next time.She should pass her English final examination, because she is always hard-working.will 表示意愿、請求、注定會I will help you if you are in trouble.Will you come this way,please?(用would更委婉)You will fail if y

8、ou dont work hard.2021/4/138would表示will的過去式及委婉的請求。She said she would try her best to help me.Would you open the window, please?need用作情態動詞，指必要。用作實意動詞，指需要。后面加名詞，代詞，不定式。You neednt come if you are busy.-Need I come here tomorrow?-No, you neednt.He needs to get up early.2021/4/139dare基本詞義是敢，既可以做情態動詞也可以做實

9、義動詞。Dare you ask him any questions?Do you dare to go out alone at night?have/has to 不得不做某事I have to go now, my mother is waiting for me.否定式：dont/doesnt have to be able to 表示有能力做某事。及can用法基本相同2021/4/1310had better意為“最好”,常常略寫為d better.否定式在had better后面加not .We had better start at once.Hed better take a nap.shall 用來表示征求意見、承諾、應該。Shall we go together?(主要用于第一、第三人稱的疑問句)Shall