Lesson 30 Science Affects Us
教学目标：
mustache1.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.exerci是什么意思情感态度与价值观：通过本课学习引导学生认识科学的重要性，并为祖国科学的发展做出应有的贡献！
4.电话英语口语培训教学重难点：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。
英文人名
教学辅助：导学案，PPT，录音机，录音带，彩粉笔。
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 with the cardboard and turn the jar over. Next, take your hand ______. Can you guess what happens? The cardboard ______ the water in the jar! The air pressure pushing up on the cardboard is higher than that of the water _______ down from inside the jar. The higher air pressure outside the jar holds the cardboard ______ ______.
Reading: Read the cond E-mail and fill in the blanks.
Science affects people’s ________ lives. Without the scientific developments of recent years, our lives would be very different. Can you imagine life without computers or _______ _______? Scientific ________ are making our lives better and better. DNA is really one of the most amazing things on the earth. Many people think it will _______ the world.
合作探讨：重点解析
1.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“建议，提议英语短篇小故事”讲时，后可接名词、代词、动名词作宾语；也可接that宾语从句，that从句用虚拟语气即should加动词原形，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，表明”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错。
2.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)：turn over 意为“把……翻过来”。
例如： The soil must be turned over before planting. 播种前必须先翻土。
turn over 还有“积累英文移交；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 hours before you make a decision. 决定这个问题之前你应该仔细考虑几个小时。
3.The air pressure pushing up on the blackboard is higher than that of the water pushing down from inside the jar. 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)：(1) push up意为“向上推；提高”。例如：Will you help me 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”。例如：What they have done pushed down the prices. 他们的做法压低了价钱。
(2) that用来替代“the+前述名词”，以避免重复。例如：The price of
rice is lower than that(the price) of meat. 大米的价格比肉(的价格)低。学音标
{注}: 在含有比较级的句子中，that指代前面提到的不可数名词或可数名词单数，而tho指代前面提到的复数名词，避免重复。
E.g. The weather in Beijing in winter is colder than that in Guangzhou.
考研大纲什么时候出来
The cars made in Shanghai are more expensive than tho made in Xi’an.
4.The 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置。
(解析)：in place意为“原位；在恰当的位置”。例如：I like to have everything in place. 我喜欢把一切东西都放在适当的位置。kta
当堂检测：Fill in the blanks with the correct forms of the words in the box.
discover affect suggest place develop
1. Jenny _______ they u a stronger piece of cardboard for the experiment.
2. The air pressure ________ the result of the experiment.
3. The experiment led to a wonderful ________.
4. What are your plans for the ________ of your company.
5. They ud a rock to hold the map in ______.
板书设计： Lesson 30 Science Affects Us
一：Words: suggest development mobile phone discovery affect
二：Phras: ver push up push down in place
