三.MUST

下面我們來學(xué)另外一個(gè)助動(dòng)詞 must. 這個(gè)字表示必須作某件事情, 沒有 其他選擇. 比方有一句話: " 亨利要上飛機(jī)了, 他非有飛機(jī)票不可 ", 這句 話英文可以這么說: Henry is going on an airplane. He must have a ticket.

現(xiàn)在我們給你多舉一些例子. 每個(gè)句子我們還是念兩遍, 還是請(qǐng)你聽一 遍, 重復(fù)一遍.

M: Henry is going on an airplane. He must have a ticket.

F: Henry is going on an airplane. He must have a ticket.

M: Kate is going to a formal party. She must wear a dress.

F: Kate is going to a formal party. She must wear a dress.

M: Linda is going to buy a record. She must save some money.

F: Linda is going to buy a record. She must save some money.

M: Mary has an exam tomorrow. She must study hard.

F: Mary has an exam tomorrow. She must study hard.

M: Peter has a class at 7 o'clock. He must get up early.

F: Peter has a class at 7 o'clock. He must get up early.

M: Susan doesn't have a car. She must go to her job by train.

F: Susan doesn't have a car. She must go to her job by train.

must 的否定式是 must not, 也可以簡(jiǎn)縮為 mustn't. 這個(gè)詞是用來表示一定 不應(yīng)該作的事. 下面這組練習(xí)內(nèi)容都是說彼得在上課的時(shí)候不應(yīng)該作的一 些事. 由老師先念一個(gè)句子: peter mustn't sleep in class. 接著老師念一個(gè) 新詞組: eat lunch. 請(qǐng)你用新詞組把原來的句子改為: Peter mustn't eat lunch in class. 好, 現(xiàn)在我們開始作換字練習(xí). 每作完一句就請(qǐng)你聽正確答案.

M: Peter mustn't sleep in class.

M: eat lunch

F: Peter mustn't eat lunch in class.

M: talk

F: Peter mustn't talk in class.

M: smoke

F: Peter mustn't smoke in class.

M: write letters

F: Peter mustn't write letters in class.

M: look out of window

F: Peter mustn't look out of window in class.

M: listen to the radio

F: Peter mustn't listen to the radio in class.

四.HAVE TO

剛才我們學(xué)習(xí)了兩個(gè)助動(dòng)詞 should 和 must, 還有它們的否定式 shouldn't 和 mustn't, 現(xiàn)在我們來學(xué)習(xí)另外一個(gè)意思跟 must 相同的詞組 have to. 這 個(gè)詞組也是用來表示非作某件事不可. 比方有一句話: "你非得清理院子 嗎?" 英文可以這樣說: Do you have to clean the yard? 另外一句話: "你非 得工作掙零用錢嗎?" 英文可以這樣說: Do you have to work to earn your allowance?

好, 現(xiàn)在我們來練習(xí)這類句子.由老師念一個(gè)句子, 然后老師給你一個(gè)新詞 組, 請(qǐng)你用這個(gè)新詞組作換字練習(xí). 作完一句就聽正確答案.

M: Do you have to clean the yard?

M: practice everyday

F: Do you have to practice everyday?

M: go to the supermarket

F: Do you have to go to the supermarket?

M: wash the dishes

F: Do you have to wash the dishes?

M: change your clothes

F: Do you have to change your clothes?

M: work to earn your allowance

F: Do you have to work to earn your allowance?

《中級(jí)美國(guó)英語(yǔ)Lesson5:助動(dòng)詞should和must》永久閱讀地址: http://www.jiazhineng.cn/yingyu/680/