黑龙江省五常市第三中学八年级英语上册Unit4Topic2SectionBAreyousurethereareUFOs导学案无答案仁爱版.doc

《Unit 4 Topic 2 Section B Are you sure there are UFOs》I. Learning Aims 学习目标1. 同学们学会熟练地运用句型：I’m (quite) sure …; 了解并学会运用新句型 I’m not sure whether/if … 在讨论UFOs 和 robots 时正确使用这些句型2. 同学们通过复习一般过去时和过去进行时，进一步掌握 “while”引导的过去进行时的句子3. 同学们进一步掌握“must, may, can’t”表示可能性的用法II. The key points 学习重点1.同学们需要掌握握下列单词和短语的用法：walk toward … 朝…走去；look like…看上去像…; be quite sure … 非常确信 …. ; be not sure whether/if … 不确定是否… ; mistake “A” for “B” 错把“A”当做 “B”2.同学们需要掌握下列句型： (1) A UFO flew over my head while I was walking toward the bus stop yesterday. 昨天当我向公交站牌走去时，一个不明飞行物从我头上飞过。

2) Even sientists aren’t sure whether there are UFOs.甚至科学家们也不能肯定是否有UFOs(3) People often mistake some man-made objects such as kites or balloons for UFOs. 人们常常把一些人造的物体，诸如风筝、气球等错认为飞碟4) While he was trying to call for help , an alien came out of the UFO. 当他正努力寻求帮助时，一个外星人从那个不明飞行物中走了出来 III. The difficult points学习难点 be not sure + whether/if …IV. Preview自主预习1. 请同学们认读生词表中P87-88的词汇五遍，直至读熟若有词读不准，请标出来2. 世界上真的有UFO吗？请同学们先从Section B中找出Jane，Michael，Kangkang以及科学家们目前对此问题所持的观点，用笔标注在书上，并试着用英语说出来3. 请同学们从Section B中找出含有下列单词的短语或句子并划在书上，会翻译。

over； toward ； whether；information ；mistake4. 请同学们从Section B中找出含有sure 的句子并翻译 5. 试着将下句翻译成英语：我不确定是否有外星人6. 请同学们认真预习知识链接，重点注意句型“be not sure whether/if…”的用法，准备课上讲述V. Hot links知识链接1. over 在……之上 over, on, above 都有“在……之上”的意思，但是它们稍有区别：on表示一个物体在另一物体表面上，即互相接触；over表示一个物体在另一个物体正上方，两者之间是垂直关系，但不接触；above表示一个物体在另一个物体的正上方或斜上方2. toward prep. 还可以写为 towards, 意为向着，朝着，对着拓展】toward(s)表示大致方向，to则含有到达的意思，如： He went _________ the bank. 他朝着银行走去 He went _________the bank. 他去了银行3. be not sure whether/if… 表示不肯定是否…，whether/if引导的是宾语从句。

I’m not sure ___________ they can come or not.I’m not sure ___________ it will be sunny tomorrow.sure一词既可用作形容词，又可用作副词下面谈谈它的用法：sure用作形容词，意为“肯定的；当然的；有把握的” (1). be sure（不接其它词），意为“肯定的”例如：Are you __________? 你能肯定吗？I think he is coming, but I'm not _______ _______. 我想他要来，但我不十分肯定2). be sure to do sth. 表示要求，意为“务必做某事；请一定做某事”，多用于祈使句Be sure ____________ (telephone) me and give me all the news. 请一定要给我打，让我知道所有的消息be sure to do sth. 还可表示一种推断，意为“一定做某事；肯定做某事”The child is sure ___________ (be) a teacher. 这孩子一定会成为一名教师。

You are sure ____________ (win). 你（们）肯定会赢3) be sure of / about (doing) sth. 表示人对某事（物）的看法，意为“对……有把握” 其后常接名词、代词或动词-ing形式如： Are you sure of ____________(pass) the exam? 你有把握通过考试吗？I'm not sure ____________ English grammar. 我对英语语法没有把握4) be sure+从句，意为“确信”如：I'm sure that ___________________________________. 我确信他会来4. mistake v. 弄错，误解，错认mistake…for… 把……错当成…… ，如：I mistook the number and went to the wrong room. 我记错号码,走错了房间人们常把他当成他的弟弟，因为他们是双胞胎 People often ________________his brother, because they are twins.【拓展】mistake n. 错误，失误 常用词组有：make a mistake 犯错误 by mistake 错误地，有失误的意思，也有意外的意思。

You take my books _______ mistake. 你错把我的书拿走了 He put salt into his tea _______ mistake. 他把盐误放进茶里 5. wake v. 唤醒，醒来 wake vi. 醒来，常与up连用，wake vt. 唤醒，弄醒， I woke up at six this morning. 今天早晨我六点钟醒来 噪音把他吵醒了 明天早上7点把我喊醒注意wake的过去式 ______VI. Having a Quit当堂检测 ( I ) 词汇(A) 根据句意及首字母提示，或用单词适当形式完成句子1. A lamp hung o ___ the table. 2. I’m not sure w______ he will arrive.3. The boy _____（walk）down the street when the UFO landed (着陆) .4. Miss Gao is one of the most popular _________（teacher） in our school .5. I went to work after _________ TV .（watch）( B) 用适当的介词填空。

1. He saw two policemen coming ________ him.2. He mistook Lucy ________ Lily.3. They are _______ danger, and they are calling _______ help.4. Robots can’t really take the place ________ humans.5. I’m not sure ________that. ( II )补全对话A. Are you sure there are UFOs ? B. Do you think they are clever ?C. I’m not sure of that . D. What does it look like ?E. What are you doing ?Jane：Hi, Mike! 1_____Mike: I’m looking for something about UFOs.Jane: UFOs? 2___Mike: Look! It looks like a plate.Jane: 3_____Mike: Sure. I’m quite sure that there are UFOs.Jane: 4_______Mike: Yes, I’m sure they are more clever than us .Jane: Really? But 5 _______. It’s said that there are no living things on other planets. 1_____ 2_____ 3_____ 4_____ 5______VII. Homework课外作业 1. 认真读、背今天的“学习重点” 和“知识链接”，并默写。

2. 仿照1c的例子，肯定、否定各写两个句子，写到作业本上3. 按照Section C中自主预习中的要求预习 Section C4. 完型填空 In recent(最近) years, computer games have become more and more popular in many cities and towns. A lot of small shops and restaurants along busy 1 have changed into 2 game houses in order to get more money. These places are always crowded with 3 especially young boys. In the。