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1、选修8 导学案设计Unit 3 Inventors and inventionsPeriod Two &Three Language Focus【课前自主学习】Whats the writing purpose of the writer?_【课堂互动探究】一、重点单词。1.call up 打电话，使.回忆起Ill call you up tonight (call sb. /ring sb. up)The old photo calls up memories of my childhood. (recall sth.) call for 需要, 要求call back 回电话，召唤某人回来
2、call in 邀请, 请来call off 取消；停止call on/at 拜访 (call on后跟人作宾语，call at后跟地点名词作宾语) 选用以上短语的适当形式填空。1). They _ their plan for a picnic because of the bad weather. 2). I hope to _ you at your office at three oclock today. 3). The photos _ memories of my study in Beijing.2. now and then 有时, 偶尔I see them now and
3、then, but not often.This section of the road is so narrow that there are bound to be traffic jams now and then. 这段路太窄，交通有时不免堵塞。 3. distinguish v. 辨别, 区别I cant distinguish the twins, they are so alike.拓展：）distinguish from 把.与分开= distinguish between and Can you distinguish between those two objects? 你
4、能区分那两个物体吗？Children should be taught to distinguish right from wrong. 应当教育孩子分辨好坏。）distinguish oneself 显扬自己, 使自己扬名Hes distinguished himself as a teacher. 作为老师，他早已负有盛名。The man distinguished himself by his wisdom. 这个人因智慧而扬名。即学即练：把下列句子译成英语。1. 语言使人区别于动物。_2. 视力好的人能看清远处的物体。_3. 你应该能够明辨是非。_4. 我很难区分她与她的姐姐。_5.
5、作为运动员他已享有盛名。_.set about开始，着手拓展：set about 后接名词或动词 -ing形式，即set about (doing) sth.。如： You must set about your work at once. Gathering up the thread of his story, he set about writing. 辨析：set about & set out 两者都表示“着手，开始”时，set about 后跟名词或动词 -ing 形式，set out 后跟动词不定式。如： 1）Jack set about decorating their new
6、 house in blues and yellows.2）The journalist immediately set out to obtain these important facts. 联想：set aside 为节省或保留（钱或时间）；将放在一边 set out to do sth.开始做某事set out (for) 出发, 启程set off (for) = leave for出发, 动身; 使爆炸 set aside 留出, 对不予以考虑 set down 记下, 写下; 登记set up 设置, 造成, 产生选用以上短语的适当形式填空。1) When I really _
7、to take care of somebody, I usually do the job properly. 2) Do you know how to _ going on with this work?3) On receiving the assignment, we_at once.A. set to work B. set out to work C. get down to work D. all the above5. abruptly adv. 突然地, 唐突地, 意外地, 比 suddenly 的意外程度强。abrupt adj. 突然的;意外的1). 这路有很多急转弯。
8、The road is full of _.2). 这会议突然结束了。The meeting came to _.3). 我们的讨论突然给缩短了。Our discussion was _ curtailed6.convenient 便利的；方便的可构成 it is convenient to sb. 和 it is convenient for sb. to do sth. 结构，意为：对某人来说（做某事）是方便的 (警示: convenient 不能以人作主语。)例句：1) This dishwasher is very convenient to me.2) Will it be conv
9、enient for you to start work tomorrow?3) Its convenient to have a supermarket nearby.即学即练1) If it is quite _ to you, I will visit you next Tuesday. A. convenient B. fair C. easy D. comfortable 2) Would it be _ for you to pick me up at four o clock and take me to the airport? A. free B. vacant C. han
10、dy D. convenient7. seize阅读下列句子，观察 seize 在句中的意思。 1). Seize the day, seize the hour. ( )2). He seized me by the hand and dragged me from the window. ( )3). The soldiers seized the city after a hard fight. ( )用 seize 的适当形式填空。 1). The host _ my hand and shook it heartily.2). We must _ every chance to pr
11、actice speaking English.二、长难句分析和仿写。1. The first thing I did was to see if there were any products that might help me, but there only seemed to be powders designed to kill snakes. (P20)分析 a. 本句是一个由but连接的并列句。b. 第一个分句中，I did是省略了关系代词that的定语从句；在if引导的宾语从句中又有个由that引导的定语从句，修饰products。c. 第二个分句中， designed to
12、. 是过去分词短语作后置定语，修饰_。2. Between the outside and the inside walls of the bowl there is some jelly, which freezes when cooled. (P20)分析 a. 本句的主干是：there is some jelly。b. which引导非限制性定语从句，其中which指代先行词_, 并在从句中作主语。c. when cooled是“连词 + 分词”形式，是一种省略，完整的表达是when it is cooled。英语中，如果状语从句中的主语与主句的主语相同，谓语动词是be时，则常可省略成“
13、连词 + 分词”形式。“连词 + 动词-ing形式”表示主动；“连词 + 过去分词”表示被动。3. Only after you have had that recognition can you say that you are truly an inventor. 只有你得到这种承认, 你才能说你是真正的一个发明家。分析 a. only 在句首的only如果后面跟了副词、介词短语或从句等状语（即修饰状语），则主句用倒装结构。但如果only后跟 的是主语，就不用倒装结构了。例如： Only when the war was over in 1918 was he able to get ba
14、ck to work Only in this way can you learn English well Only after a bitter struggle was the aim achieved Only the teachers are allowed to use the room（不倒装） Only five men were hurt in the accident（不倒装） 即学即练：翻译以下句子：Only by working hard can we pass the exams. _4. The criteria are so strict that it is d
15、ifficult to get new ideas accepted unless they are truly novel. (P21)分析 a. 本句的主句是The criteria are so strict, 从句是that引导的结果状语从句。b. 从句中it是形式主语，真正的主语是_；该从句中还有一个由unless引导的条件状语从句。5. Nor will you receive a patent until a search has been made to find out that your product really is different from everyone e
16、lses. (P21)分析 a. 本句的主句Nor will you receive a patent是个倒装句，nor位于句首时，句子用倒装。b. 从句是until引导的时间状语从句。c. 时间状语从句中包含一个由that引导的宾语从句，作find out的宾语。仿写 _（如果你决定不参加会议，我也不参加。）【课后实践导练】一每空填一词, 使该句与所给句子的意思相同或相近。1. Not receiving any letter from him, I gave him a call. Not receiving any letter from him, I _ _ _.2. The shep
17、herd set out to look for the sheep that had wandered away. The shepherd _ _ _ _ the sheep that had wandered away.3. It seems that he has read this book. He seems to _ _ this book.4. He went to see his grandmother sometimes. He went to see his grandmother _ _ _. 5. He was able to walk without sticks
18、only one day after the operation. _ _ _ _ _ _ _ he able to walk without sticks.6. He will not agree to this plan, and he will not support anyone who does either. He will not agree to this plan, _ _ _ support anyone who does.二用方框内所给短语的适当形式填空。a matter of get down to in case call up in addition to get
19、rid of1. How can you _ a bad habit?2. He had his camera ready, just _ he saw something that would make a good picture.3. _ your car payment, you will have to pay for annual insurance.4. Im sure we will succeed in time if we keep on trying. Its just _ time.5. I must _ study tonight, as Im going to take an exam tomorrow.6. She _ a friend just for a chat.【课后反思总结】1、我的收获是：_2、存在的问题：_学科网（北京）股份有限公司