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1、If you go to the party,you will have a great time教师寄语Think twice before acting学习目标1、 知识目标：单词travel/teenager/normal/certainly/wallet/worried/understanding/careless/mistake/advise/solve/step/trust/experience/else短语keep.to oneself/make money/in the end/make mistakes句子 If people have problems,they shoul
2、d try to keep them to themselves. Unless we talk to someone,well certainly feel worse. 2、 情感态度价值观目标：能在做事前考虑结果，正确行动教学重点Unless引导的条件状语从句教学难点Unless引导的条件状语从句教学方法教师讲授，小组讨论教 学 过 程1 自学指导掌握下列词组或句子go to college/travel around the world/make a lot of money/get an education/get advice from an expert /keep them t
3、o themselves有很多担忧 有关于他们学业的问题 除非我们对某人说，否则我们将肯定会感到更差 犯粗心的错误 逃避问题 有更多的经验 解决一个问题 2 合作探究（3） unless引导条件状语从句（unless = if not） “除非，否则” 例 (1)The concert will be held as schedule unless there is a typhoon.除非刮台风，否则演唱会将如期进行 = the concert will be held as schedule if there is not a typhoon (2)She will keep on sin
4、ging unless she is told to stop. 她会一直唱下去，除非有人叫她停止 = she will keep on singing if she is not told to stop 也可以用 or“否则”来做同义句转换 Unless you listen carefully, you wont know the answer. = if you dont listen carefully, you wont know the answer. = you should listen carefully, or you wont know the answer. 2.mi
5、stake可数名词 a mistake make some careless mistakes It was a mistake to tell him.告诉他是个错误。短语 by mistake 错误地 . I picked up your book by mistake. 我拿错了你的书.mistake sth for sth把.误当成. He mistakes your bag for mine.做动词 mistake过去时mistook You mistook my meaning entirely.你完全误解了我的意思。5. in the end强调结果(无in the end of
6、这种用法) In the end,the policeman caught the thief. at the end of.在.(时间、地点)尽头 The school is at the end of the street Well have an exam in English at the end of January by the end 在.结束之前(常与完成时态连用如：将来完成时/过去完成时/现在完成时连用) By the end of this year,they will have finished the work (在今年年底前，他们将完成这个工作）注：have+过去分词
7、表完成时6. experience 做可数名词，经历，阅历 I like to share experiences with your friends. 做不可数名词，经验 My teacher has more than ten years teaching experience. 动词，经历 I have experienced hardship in my early life. 在我早期生活我经历过困苦。 条件状语从句专练 2. If I _ his phone number, I will tell you. A. find B. found C. will find D. have
8、 found 3. We will go camping if it _ tomorrow. A. Wont rain B. didnt rain C. doesnt rain D. isnt raining 3. Im waiting for my friend. If he _, I _ swimming alone. A. doesnt come; will go B. wont come; will go C.will come; wont go D. dont come; will go 4. _ you go to the supermarket at 7 p.m, you can
9、 buy a lot of cheap food. A. If B. Unless C. Whether D. When 5. I wont get to the party on time _ I catch the first train tomorrow morning. A. If B. Unless C. Whether D. When 6.Shall we go on a picnic this weekend? -Good idea! Unless it _. A. rains B.doesnt rain C. rain D. wont rain 7.-Can I change
10、the jacket for another one _ it doesnt fit me well? - Of course. A. unless B. if C. that D. Though8.Each student can ask teachers for help if he_ A will know B wont know C dont know how to work out the problem. D doesnt know Mistake专练1.Tom was so careless that he _ in the exam . A. make mistake B. m
11、ade mistakes C. by mistake D. mistakes2. -Sorry .Jane . I took your schoolbag_ - It doesnt matter . A. by hand B. by mistake C. by accident3. - Why is she so excited ? - Oh, she met an old friend _ in Shanghai . A. by mistake B. by air C. by accident 2 用 if 或 unless 填空1. _ he wants to see me, you ca
12、n tell him to wait. 2. _ it snows tomorrow, well have a day or two off. 3. We wont go to his party _he invites us. 4. _she is ill，she is sure to pass the examination5. Ill take that computer _ I have enough money. 6. _my grandma wears glasses, she can see better.7. _ it costs less than $20 I wont bu
13、y that backpack 8.8. _Im tired,Ill have a rest for tea.选择正确短语填空 in the end at the end of by the end of 1.Li Ming came across a few new words the article.2.Xiao Ming passed the exam . 3. last term we had learned five English songs. 4.Ice(冰)becomes smaller and smaller until it disappears(消失) completely(完全).5.The world population(世界人口) will pass six billion the twentieth century. 6.There is a clothes shop the street.教 学 反 思3
