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1、Unit 8 Have you read Treasure Island yet第三课时Section A (Grammar Focus 3c)学习目标1. 进行一步复习巩固运用Section A 部分所学的生词和词组。2. 进一步学习现在完成时的结构及用法。课时重点利用教材或工具书查看生词的读音和真正含义；读Grammar Focus 中的句子，弄清其意思，总结本单元的语法。预习导学一、自学生词，并记住Section A 部分所学的生词和词组拼读及拼写。二、读Grammar Focus，并完成下面的语法要点归纳。现在完成时的结构： 现在完成时的用法1） 2） 和现在完成时连用的词： 三、在理
2、解的基础上，小组内完成4a-4c。合作探究Task1:全班朗读教材上Grammar Focus的句子，小组归纳语法知识并完成下面的练习。1、用所给单词的适当形式填空。1. Tom has already finished his work. (改为一般疑问句) _ Tom_ his work _?2. His parents have already visited Japan. (改为否定句) His parents _ _ Japan _.3. Has Jane eaten lunch? ( 作否定回答) _, she _.Task2:1. 先独立完成4a4c，再小组内讨论核对答案。2.
3、抽部分小组展示他们的结果，并作相应的说明。导学测评一、用所给单词的适当形式填空。1.Robinson Crusoe saw cannibals (try) to kill two men from a broken ship.2.Ive just (drink) some tea. 3I think Tom Sawyer was a bit (bored).4. She finished （read） a book about robots last week.5.Have you decided which book (read) yet?二、单项填空。1.Did Robinson Crus
4、oe arrived the island enough food and drink? A. in, for B. on, for C. to, with D. on, with2. Friday I clever and Robinson Crusoe him some English. A. has taught B. has teach C. is teaching D. was teaching3 There are two men waiting for her. Is Mike, is David.A、One, the others B、One, other C、One, the
5、 other D、One, another4.Can you imagine what the world will be like ? A. after 100years B. before 100years C. until 100years D. in 100years 三 根据汉语提示完成句子。1那以后不久，他去了珠海。 2 有人留下了一些标志。 3 他有两个孩子，一个在武汉，另一个在北京。 4 他不应该用他的枪射鸟。 5当他第一次到达沙滩时，他非常兴奋。 6 我将会记住我遇见他的那一天。 7请带回你可以用的东西。 8在过20年，他将会是什么样？ 9 他是如此想念他的家人，以至于迫不及
6、待想见见他们。 四、根据短文内容及首字母提示，完成下列短文。 Helen is an American girl. A the age of six months, she should say a few words. But w she was two Years old, she couldnt see o hear. And she even could not speak soon. Life is h to her. Later her teacher helps her to see and h the word around her with her hands. Soon ,
7、she can r books for the blind. She also learns c food and learns how to swim and r a horse. She writes manyinteresting b about her life. Many people like her books. She is g .知识超市现在完成时误区提醒:(1)have been(to)与have gone( to)的区别：have been(to)表示“去过某地(现在已经回来了)”，可用于各人称;have gone(to)表示“去某地了(说话时某人不在当地)”，常用于第三
8、人称，前者可与once ,never, several times等连用，后者则不能。如：They have been to Beijing twice.他们去过北京两次。He has gone to Beijing . 他去北京了。(2)如单纯表示一段时间，或强调一段时间，虽有since一词，也不必用完成时。如：It is two years since his father died. =His father has been dead for two years.他父亲去世已有三年了。(3)终止性动词现在完成时的否定式，已变成一种可以延续的状态，因此可以和表示一段时间的状语连用。如：I havent left here since 1997.自从1997年以来，我一直没有离开过这儿。has been in：表示一直呆在某地， 常与时间段搭配(呆了很久)。
