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三.MUST
下面我們來學另外一個助動詞 must. 這個字表示必須作某件事情, 沒有 其他選擇. 比方有一句話: " 亨利要上飛機了, 他非有飛機票不可 ", 這句 話英文可以這么說: Henry is going on an airplane. He must have a ticket.
現在我們給你多舉一些例子. 每個句子我們還是念兩遍, 還是請你聽一 遍, 重復一遍.
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, 也可以簡縮為 mustn't. 這個詞是用來表示一定 不應該作的事. 下面這組練習內容都是說彼得在上課的時候不應該作的一 些事. 由老師先念一個句子: peter mustn't sleep in class. 接著老師念一個 新詞組: eat lunch. 請你用新詞組把原來的句子改為: Peter mustn't eat lunch in class. 好, 現在我們開始作換字練習. 每作完一句就請你聽正確答案.
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
剛才我們學習了兩個助動詞 should 和 must, 還有它們的否定式 shouldn't 和 mustn't, 現在我們來學習另外一個意思跟 must 相同的詞組 have to. 這 個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, 現在我們來練習這類句子.由老師念一個句子, 然后老師給你一個新詞 組, 請你用這個新詞組作換字練習. 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?
