高中英语人教 必修 UnitPeriodGrammar

会计学1高中英语人教高中英语人教 必修必修 Unit Period Grammar231、帮助学生了解、熟悉并初步掌握名词性从句主语从句的用法。2、使学生能够找出主语从句，并动手解决主语从句的相关练习。3、学会用主语从句简单会话表达。第1页/共28页 本课首先开始于简单句子到复合句子中对主语的认识，从学生熟悉的名词、人称代词充当主语，一步一步由浅入深过渡到句子作主语。旨在给学生有个初步认识，为下面的环节打基础。 通过小组竞赛，在已学的reading中快速找出主语从句，旨在加深学生对主语从句的认识程度，竞赛有利于培养学生的合作能力，使语法课生动活跃起来。通过不同的语法练习的呈现、讲练结合看图根据对话写出主语从句及各种语法任务设置，使学生掌握主语从句的相关知识。尤其是try your luck部分更能调动学生学语法知识的气氛，提高学生解决语法知识的能力，熟悉主语从句。第2页/共28页It is certain that we shall be late.主主语语名词充名词充当主语当主语人称代词人称代词充当主语充当主语不定式充不定式充当主语当主语动名词充动名词充当主语当主语句子充句子充当主语当主语句子充句子充当主语当主语it充当充当形式主形式主语语第3页/共28页Lets see which group can find the sentences like the following examples in Reading on Page25-26 more quickly.Attention please:1. Four or six people in a group. 2.Try to find as many sentences like the following examples as possible! 3.If your group finish the task, please put up your hand and one member should tell us all the sentences your group have found.Examples : (sentences served as subject) What she said is not yet known. That we shall be late is certain. It is certain that we shall be late.第4页/共28页Sentences in Reading P25-26Read & translate所有划线的句子都充当所有划线的句子都充当_.那么什么是那么什么是主语从句主语从句呢？呢？主语主语第5页/共28页 主语从句主语从句 (Subject Clause)如果一个句子在复合句中充当一个主语如果一个句子在复合句中充当一个主语, , 那么这个句子就是那么这个句子就是主语从句主语从句。That he finished writing the composition in such a short time surprised us all.What we need are good doctors.Whom we must study for is a question of great importance.What is subject clause?第6页/共28页主语从句三要主语从句三要素素 he became a great scientist is known to us all.Is what you told me really true?谓语动词用单数谓语动词用单数从句用陈述语序从句用陈述语序不能省略关联词不能省略关联词Notice:What we need most are books.How第7页/共28页_has not been found.Student A: where was Thomas Edison born?Students B: I dont know. I cant find the answer in the passage.Where he was born 第8页/共28页_is still unknown.Student A: who will win the English speech contest?Students B: I dont know. It is hard to say.Who will win the match 第9页/共28页_will be welcome.Student A: Tom, tomorrow is your birthday. Who do you invite?Students B: I will welcome everyone who comes to my party.Whoever comes 第10页/共28页在主语从句中在主语从句中, 谓语一般用单数。谓语一般用单数。无论他说什么都不重要。无论他说什么都不重要。Whatever he says is of no importance.无论谁说这话都不对。无论谁说这话都不对。 Whoever says that is wrong但谓语动词用单数还是复数但谓语动词用单数还是复数, 不可不可一概而论一概而论, 而要视句子的意义而定。而要视句子的意义而定。 What I need is money. What I need are books.第11页/共28页what 与与that 在引导主语从句时的区别在引导主语从句时的区别what 引导主语从句时在句时在从句中充当引导主语从句时在句时在从句中充当句子成分句子成分, 如主语、宾语、表语如主语、宾语、表语, 而而that 则不然。则不然。 1) What you said yesterday is right.2) That she is still alive is a consolation. 第12页/共28页为了防止句子头重脚轻，通常把形式主语为了防止句子头重脚轻，通常把形式主语it 放在主语位置，真正主语后置。放在主语位置，真正主语后置。1. It is certain that he will win the match. That he will win the match is certain.2. It is true that he has made a very important discovery in chemistry. That he has made a very important discovery in chemistry is true .3. It is very likely that they will hold a meeting. That they will hold a meeting is very likely .第13页/共28页 1.以以that 引出的主语从句引出的主语从句,常以形式主语常以形式主语it引导引导, 结构为结构为: It is +形容词形容词/名词名词/某些动词某些动词ed + that 从句。从句。 (1) It is +形容词形容词/名词名词+ that 从句，如：从句，如： It is a pity/shame that 遗憾的是遗憾的是 It is possible that 很可能很可能 It is unlike that 不可能不可能 (2) It +不及物动词不及物动词+ that 从句，如：从句，如： It seems/appears that. 似乎似乎 It happened that 碰巧碰巧第14页/共28页(3)It + be + 过去分词过去分词+ that 从句从句It is said that 据说据说 It is known to all that 众所周知众所周知It is reported that 据报道据报道It is believed that 人们相信人们相信It is suggested that 有人建议有人建议It must be pointed out that 必须指出必须指出第15页/共28页Choose the pictures and finish the exercise with your group!第16页/共28页1. _ watch was lost is unknown.2. _ you did is right.3. _ we will go for an outing tomorrow remains unknown.4. _ we need is time.5. _ will be our monitor hasnt been decided yet.whether what who whose whateverUse the words below to fill in the blanks.WhetherWhatWhateverWhoseWhoback第17页/共28页【常见错误展示常见错误展示】下列各句均有一处下列各句均有一处错误，请改正并分析错误的原因。错误，请改正并分析错误的原因。1. Light travels faster than sound is common knowledge.2. If shes coming or not doesnt matter much.Thatthat虽无词义但引导主语从句位于虽无词义但引导主语从句位于句首时不能省略。句首时不能省略。Whetherif, whether都可表示都可表示“是否是否”, 但但if不能引导位于主不能引导位于主句之前的主语从句，它可以引导位于主句之后带有句之前的主语从句，它可以引导位于主句之后带有形式主语形式主语it的主语从句。的主语从句。back第18页/共28页You are lucky today! You dont need to do exercises!back第19页/共28页3. That the professor said is of great importance.4. Where will the trees be planted has not been decided.Whatthat引导主语从句时无词义。引导主语从句时无词义。What the professor said表示表示“教授所说的教授所说的”。将将will置于置于trees之后。主语从句要之后。主语从句要用陈述句语序。用陈述句语序。back【常见错误展示常见错误展示】下列各句均有一处下列各句均有一处错误，请改正并分析错误的原因。错误，请改正并分析错误的原因。第20页/共28页5. No matter who breaks the rule will be punished.6. When the meeting will be held still remain a question.引导让步状语从句时二者可互换，但引引导让步状语从句时二者可互换，但引导名词性从句时只能用导名词性从句时只能用whoever。Whoever 主语从句表示单一概念时，谓语要用主语从句表示单一概念时，谓语要用单数形式。单数形式。remainsback【常见错误展示常见错误展示】下列各句均有一处下列各句均有一处错误，请改正并分析错误的原因。错误，请改正并分析错误的原因。第21页/共28页7. It was requested that everyone made a speech at the meeting.在在“It is requested / ordered / suggested + that从句从句”中，从句要用虚拟语气，中，从句要用虚拟语气，即谓语用即谓语用“should + 动词原形动词原形”，should可省略。可省略。(should) makeback【常见错误展示常见错误展示】下列各句均有一处错误，请改下列各句均有一处错误，请改正并分析错误的原因。正并分析错误的原因。第22页/共28页Finish ex.2 in Discovering useful structures.Group work第23页/共28页Discovering useful structures1. His discovery has not yet been proved.What _.2. Do the other astronomers accept his ideas? It remains a question. Whether _.3. The first appearance of life on earth is still a mystery to scientists. How _.has not yet been proved is his discovery other astronomers accepts his ideas remains a questionlife first appeared on earth is still a mystery to scientistsEx. 2第24页/共28页4. Why is the earth becoming warmer? It is an important topic for research. Why _.5. Stephen Hawking at 65 experienced zero gravity during a flight. It amazed everybody.It amazed everybody _.6. Pluto is no longer considered a planet in our solar system. What a surprise! It is a surprise _.that Stephen Hawking at 65 experienced zero gravity during a flight.that Pluto is no longer considered a planet in our solar system the earth is becoming warmer is an important topic for research第25页/共28页第26页/共28页第27页/共28页