英语-A3演示文稿设计与制作-教学设计【2.0微能力认证获奖作品】.docx
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1、Lesson 30 Science Affects Us教学目标:i.掌握四会单词:suggest development mobile phone discovery 接触词汇:affect,掌握重点短语:turn over push up push down in place.2 .过程与方法:教师引导,自主思考,合作探讨。3 .佶感态度与价值观:通过本课学习引导学生认识科学的重要性,并为 祖国科学的开展做出应TT的贡献!4 .教学重难点:学会使用suggest的用法;并掌握一些重点短语。 教学方法:引导法,讨论法,讲授法,举例法,练习法。教学辅助:导学案,PPT,录音机,录音带,彩粉笔。
2、Listening:Listen to the first E-mail and fill in the blanks.First, get a jar of water and a piece of paper.the jar withthe cardboard and tuni (he jar over. Next, take your hand. Can you guess what happens? The cardboard the water in the jar! The airpressure pushing up on the cardboard is higher than
3、 that of the waterdown from inside the jar. Tiie higher air pressure outside the jar holds the cardboard.Reading: Read the second E-mail and fill in the blanks.Science affects peoples lives. Without (he scientific developments of recent years, our lives would be very different. Can you imagine life
4、without computers or? Scientific are making our lives belter and belter. DNA is really one of the mosi amazing things on the earth. Many people think it will the world.合作探讨:重点解析I suggest you try it. too!我建议你也试一试!(解析):suggest意为”建议.提议:暗示。当“建设,提议”讲时, 后可接名词、代词、动名词作宾语:也可接ihal宾语从句,thal从句用 虚拟语气即should加动词原形
5、,should可以省略。例如:He suggested waiting a bit longer. = He suggested (our) waiting a bit longer. = He suggested that we (should) wait a bit longer.他建议我们再等一会儿。 当“暗示,袤我“讲时,从句中用陈述语气,不用虚拟语气。例如:His science could only suggest disapproval.他的沉默只能暗示反对。 It is wrong to suggest that there are easy choices.暗示有容易的选择是
6、错。1. Cover the jar with the cardboard and turn the jar over.用硬纸板盖住广口瓶,再把它倒过来。(解析):turnover意为“把.翻过来“。 例如:The soil must be (urned over before planting,播种前必须先翻土。 turn over还有“移交;仔细考虑的意、思例如:If you can turn it over in time. I,ll lend the book to you.如果你能按时还书,我就把它借给你。 You should turn over the problem for h
7、ours before you make a decision,决 定这个问题之前你应该仔细考虑几个小时。2. The air pressure pushing up on the blackboard is higher than that of the waler pushing down from inside ihcjar.托着纸片的向上的空气压力要 大于广口瓶内水的向下的压力。(解析):(l)p“.汕”p意为“向上推: 提高. 例如:Will you help ine to push up the window?你能帮我把 窗户推上去吗? push down意为“向下推:推到:压倒”
8、。例如: What they have done pushed down the prices.他们的做法压低 了 价钱。ihal用来替代“ihe+前述名词”,以防止或复。例如:The price of rice is lower than that(thc price) of meat.大米的价格比肉(的价格)低。 (注:在含有比拟级的句子中,dial指代前面提到的不可数名词或可数 名词单数,而ihose指代前面提到的任数名词,防止重灯。E.g. The weather in Beijing in winter is colder than that in Guangzhou.The car
9、s made in Shanghai are more expensive than those made in Xian.3. Thc higher air pressure outside the jar holds the cardboard in place.广口瓶外面的较大的空气压力把纸片托在原位宣。(解析):in place意为“原位:在恰当的位置”。例如:I like to have everything in place.我再欢把一切东西都放在适当的位置。当堂检测:Fill in the blanks with the correct forms of the words in
10、 the box.discover affect suggest place developJenny they use a stronger piece of cardboard for the experiment.1. The air pressure the result of the experiment.2. The experiment led (o a wonderful.3. What are your plans for the of your company.4. They used a rock to hold the map in.板书设计:Lesson 30 Sci
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