人教版八下-Unit 6 An old man tried to move the mountains.-Section A Grammar focus 4a—4c-ppt课件-(含教案)-省级优课-(编号：3110d).zip

Unit6 Grammar 初中英语人教版八年级下册初中英语人教版八年级下册 学习目标 掌握unless, as soon as, sothat的用法， 并通过不同方式的练习， 来熟练运用这些词汇。 1.You will fail the exam unless you prepare for it. 2. I will tell him the news as soon as he comes back. 3. The teacher speaks so fast that I cant catch the words. 4. Ill write to you as soon as I get to Beijing. 5. She will miss the train unless she gets up early. 6. He took out his English books as soon as he sat down. 7. The camera is so expensive that I cant afford it. 8.I wont let you in unless you show me your passport. 9. The sunshine is so nice that I want to go swimming. 仔细观察下面的状语从句，体会连词的用法。 【语境领悟】 1.You will fail the exam unless you prepare for it. 2. I will tell him the news as soon as he comes back. 3. The teacher speaks so fast that I cant catch the words. 4. Ill write to you as soon as I get to Beijing. 5. She will miss the train unless she gets up early. 6. He took out his English books as soon as he sat down. 7. The camera is so expensive that I cant afford it. 8.I wont let you in unless you show me your passport. 9. The sunshine is so nice that I want to go swimming. 【知识构建】 (一)定义 状语从句由从属连词引导, 从属连词不充 当句子成分, 只起连接作用。状语从句在复合 句中修饰主句中的谓语、形容词或副词, 根据 意义上的不同, 可分为: 条件状语从句、时间 状语从句、结果状语从句等。 unless unless引导条件状语从句，意为“除非，如果不”。 unless = if. not。 Youll fail in English unless you work hard. Youll fail in English if you dont work hard. （二）常见用法 as soon as as soon as是连词词组，引导时间状语从句，意为 “一就”。 如： As soon as I finish my homework, Ill give you a call. Ill write to you as soon as I get to Beijing. sothat 1. so形容词或副词that .引导肯定的结果 状语从句，意思是“如此以至于”。 2. so形容词或副词that .引导否定的结果 状语从句，意思是“如此以至于不能 ”。 The sunshine is so nice that I want to go swimming. sothat The camera is so expensive that I cant afford it. 易错点易错点1 在时间状语从句和条件状语从句中，应该使用一般 现在时代替一般将来时，简称“主将从现”原则。 2. unless/as soon as引导状语从句的“主将从现”原则 主 祈 从 现 主 情 从 现 1. unless/as soon as引导状语从句的“主过从过”原则 I told him the news as soon as he came back. （三）易错点 易错点易错点1 （主过从过） （从过） （主过） He took out his English books as soon as he sat down. He wrote to me as soon as he _(get) to Beijing. got 易错点易错点1 Well be late unless we speed up. Ill return the book as soon as I (finish/will finish) it tomorrow. （主将从现） （从现） （主将） 易错点易错点1 Please call me as soon as you get there. （主祈从现） （从现） （主祈） Dont play out unless you _(finish) your homework. finish 易错点易错点1 （主情从现） You cant pass the exam unless you study hard. （主情） （从现） She may miss the train unless she (get)up early. gets 易错点易错点2 一般情况下，unless相当于ifnot，可以互换，遵循“主将 从现”原则。 I wont let you in unless you show me your passport. unless与与ifnot I wont let you in if you dont show me your passport. 易错点易错点3 结构不一样 so that/sothat的区别的区别 so that后跟句子（目的状语从句/结果状语从句） sothat的结构为： so形容词或副词that从句 易错点易错点3 so that引导结果状语从句（因此、所以）或目 的状语从句（以便、为了）。 sothat只可以引导结果状语从句（如此 以至于）。 表达含义不一样 易错点易错点3 The speaker speaks loudly so that all of us can hear him. Maria likes this dress so that she decides to buy it at once. The boy is so yong that he cant go to school. (目的状语从句) (结果状语从句) (结果状语从句) 【典例典例1】_ youve tasted them, you cant imagine how delicious the dishes are. A. Because B. Although C. When D. Unless 考查连接词。句意：如果你不尝一尝，你就想象不到 这些菜有多美味！because因为，although尽管， when当时候，unless如果不，根据题意只能选 unless。 【典例典例2】 As soon as he returns to hometown, he _ his grandparents. A. visit B. visits C. will visit D. visited 考查连接词as soon as的用法。句意：他一回到家乡 ，就去看望他爷爷奶奶了。as soon as引导的从句“ 主将从现”，主句选一般将来时will visit。 【典例典例3】David was _ careless _ he didnt find the mistakes in his test paper. A. too; to B. so; that C. such; that D. so; / 考查状语从句。句意：大卫如此粗心以至于他根本 没有发现考试卷子中的错误。根据句意，前后两个 句子为前因后果，故答案选B。 一、单项选择。 1.Your dream wont come true unless you _ hard. A. will work B. work C. works D. worked 2.My mother cleaned the room as soon as she _ home. A. gets B. will get C. got D. gotten 3.The sports meeting wont be put off _ it rains heavily. A. if B. since C. as soon as D. unless 4.Listen to the teachers carefully as soon as you _ in class. A. be B. will be C.were D. are 5.I cant finish the work on time unless you_ me. A. help B.will help C. helped D.helps Fill in the blanks with unless, as soon as or so that. 1. _ her father died, the stepsisters made her do all the chores. 2. She was _ busy _ she had no time to make a dress for the party. 3. The mice knew that _ they helped her make a dress, she would not be able to go to the party. 4. _ the prince saw her, he fell in love with her. 5. The prince knew _ the girls foot could fit the shoe, it was not the right girl. 6. The new couple were _ happy _ they couldnt stop smiling when they got married. As soon as 4a so that unless As soon as unless so that 改错题 1. Dont come in unless you will be invited . _ 2. You cant pass the exam unless you will study hard. _ 3. Ill write to you as soon as I will get to Beijing. _ 4. The teacher speaks such fast that I cant catch the words. _ Dont come in unless you are invited . You cant pass the exam unless you study hard. Ill write to you as soon as I get to Beijing. The teacher speaks so fast that I cant catch the words. 用unless, as soon as, so.that 三个连 词写一段不少于10句话的短文或故事。 Unit6Unit6 SectionASectionA GrammarGrammar 教案教案 教学目标教学目标: : 1. 掌握 unless, as soon as, sothat 的用法。 2. 通过不同方式的练习，来熟练运用这些词汇的用法。 教学重难点教学重难点 1. 教学重点： 1) unless, as soon as, sothat 的用法。 2)练习巩固 unless, as soon as, sothat 句型，达到熟练运用的目标。 2. 教学难点： 1) 动词的正确形式填空。 2) 掌握 unless, as soon as, sothat 的用法，以及时间状语从句和条件状 语从句在事态上的特殊用法。 三、教学过程三、教学过程 Step 1 lead-in 1. Present 9 sentences, then ask the students divide them into three groups. 1.You will fail the exam unless you prepare for it. 2. I will tell him the news as soon as he comes back. 3. The teacher speaks so fast that I cant catch the words. 4. Ill write to you as soon as I get to Beijing. 5. She will miss the train unless she gets up early. 6. He took out his English books as soon as he sat down. 7. The camera is so expensive that I cant afford it. 8.I wont let you in unless you show me your passport. 9. The sunshine is so nice that I want to go swimming. tips: unless, as soon as, sothat Students give the answer and the reason 2. Check the answer. (见课件) Step 2 Grammar 1. unless 是连词，意为“除非；如果不”，引导条件状语从句，含有否定意 义，相 当于 if . not 。 Youll fail in English unless you work hard. Well miss the bus unless we walk more quickly. 2. as soon as 是连词词组，引导时间状语从句，意为“一就”。 As soon as I have finished, Ill give you a call. Ill write to you as soon as I get to Beijing. 3. so . that 表示“如此以至于”，常用于引导结果状语从句。 1). so形容词或副词that .引导肯定的结果状语从句，意思是“如 此以至于”。 The sunshine is so nice that I want to go swimming. 2). so形容词或副词that .引导否定的结果状语从句，意思是“如 此以至于不能”。 The camera is so expensive that I cant afford it. Step 3 Special points 1. unless/as soon as 引导状语从句的“主将从现”原则 在时间状语从句和条件状语从句中，应该使用一般现在时代替一般将来时， 简称“主将从现”原则。 主祈从现 主情从现 Well be late unless we speed up.( 主将从现) Ill return the book as soon as I finish it(主将从现). Please call me as soon as you get there.( 主祈从现) You cant pass the exam unless you study hard.( 主情从现) 2. 一般情况下，unless 相当于 ifnot，可以互换，遵循“主将从现”原则。 I wont let you in unless you show me your passport.(同义句) I wont let you in if you dont show me your passport 3. so that/sothat的区别: 1).结构不一样 so that 后跟句子（目的状语从句/结果状语从句） sothat的结构为： so形容词或副词that 从句 2). 表达含义不一样 so that 引导结果状语从句（因此、所以）或目的状语从句（以便、为了）。 sothat只可以引导结果状语从句（如此以至于）。 The speaker speaks loudly so that all of us can hear him. (目的状语 从句) Maria likes this dress so that she decides to buy it at once. (结果 状语从句) The boy ran so fast that I couldnt catch him. (结果状语从句) Step 4 Practice Work on 4a: 1. _ her father died, the stepsisters made her do all the chores. as soon as; 点拨：分析句子结构可知，后一句“继姐让她做所有的家务” 是主句，上一句“她的父亲死后”应是句子的时间状语。因此，应用 as soon as 来引导时间状语从句。 as soon as 意为“一就”，时态遵循“主将从 现；主过从过”的原则。 2. She was _ busy _ she had no time to make a dress for the party. so that; 点拨：分析句意可知“忙”所导致的结果是“没有时间为聚会做一 件礼服”。 so that 意为“如此以至于”，常用于结果状语从句，表示上文动作 所产生的结果，故空格处应用 sothat。前后句时态，要保持一致。 3. The mice knew that _ they helped her make a dress, she would not be able to go to the party. unless; 点拨：句意“公主知道，除非他们帮她做一件礼服，她就会不能去参 加那个晚会。”可知前一句是后一句的条件。 unless 意为“除非；如果不”，引导条件状语从句，相当于 if 条件状语从句 的否定句；时态遵循“主将从现；主过从过”的原则。 4. _ the prince saw her, he fell in love with her. as soon as;点拨：句意“王子一看到她，就爱上了她”，可知上一句应为一时 间状语从句，故应用 as soon as 来引导， 表示“一就”之意。 5. The prince knew _ the girls foot could fit the shoe, it was not the right girl. unless; 点拨：句意“王子知道，除非女孩的脚与鞋子合适，否则就不是他要 的女孩”，可知上下句之间存在条件关系 故应用 unless 一词。 6. The new couple were _ happy _ they couldnt stop smiling when they got married. 点拨：句意“这对新婚夫妇是如此的幸福，以至于他们不停地在笑。”，可知 上下文之间存在因果关系，“高兴”的结果是“不停地在笑” ，故应用 sothat 句式 correct the wrong sentences: 1.Don t come in unless you will be invited to. Dont come in unless you are invited to. 2.You cant pass the exam unless you will study hard. You cant pass the exam unless you study hard. 3.Ill write to you as soon as I will get to Beijing. Ill write to you as soon as I get to Beijing. 4.The teacher speaks such fast that I cant catch the words. The teacher speaks so fast that I cant catch the words. Step 5 Step 6 Homework 1. 复习 Grammar Focus 中的内容。 2. 用今天所学过的三个连词 unless, as soon as, sothat 编造不少于 10 句的小故事 板书设计板书设计 Unit 6 Grammar 时间状语从句与条件状语从句（主将从现 主祈从现 主情从现） 1. unless = if not 2. as soon as 结果状语从句 sothat