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1、Section A (2a-3c),任务:补全对话。 A:Hello.1. B:This is Mike speaking. A:Hi,Mike.This is Jack.Are you going to the school party tomorrow? B:Yes,I am.2. A:So am I.I will bring my cousin Dave.He arrived yesterday. B:3. A:What will happen if I do? B:If you bring Dave,the teacher will ask him to leave.4. A:What
2、 a pity! B:5. If you dont have your ID card,you cant go to the party. A:Thank you for reminding(提醒)me.See you tomorrow. B:See you.,B,E,A,D,C,A.You cant do that. B.May I speak to Mike? C.Dont forget to take your ID card. D.Because he isnt a student from our school. E.What about you?,If we have it tod
3、ay,half the class wont come.如果我们今天开(聚会)的话,一半的学生不会来。 剖析 (1)“half+the+n.”中的half为形容词,意为“一半的,半个的”。如: Half the guests are women.一半的客人是女士。 (2)“half of+代词/the+n.”中的half为名词,意为“一半,半个”。该短语在句中做主语时,谓语动词与half of后面的名词的数保持一致,即当代词或名词为单数时,谓语动词用第三人称单数形式;当代词或名词为复数时,谓语动词用复数形式。如: Half of the students are playing soccer on the playground.一半的学生正在操场上踢足球。 Half of the cheese is in the refrigerator. 一半的奶酪在冰箱里。 拓展 half表示“半数”,all表示“全部”,none表示“没有”。,