1、泗洪县第四中学 9 年级 英语 学科教学案 主备人： 祖瑞 个备人： 祖瑞 审核人： 时间： 17-03-03 总第 17 课时课题：Unit 3 Reading (2) 二次备课【教学目标】1. master the usage of key words, phrases and sentences;2. compare the life on the Earth with that on Mars;3. know the importance of protecting the Earth.【教学重难点】1. Further understanding of the text.2. Lan
2、guage points.【复习引入】Show some beautiful pictures and our own planet Earth.T: Fill in the blanks with proper words according to the article.【自主 合作 探究】1. more and moreT: Why will we leave our own planet Earth?来源:gkstk.ComS: Earth is becoming more and more crowded and polluted because of the rapid incre
3、ase in population.more and more 加强程度，表示“越来越”The structure is “comparative + comparative”.e.g. younger and younger, faster and faster, better and better, more and more careful, more and more comfortable来源:学优高考网T: Lets make some sentences to praise your partner with this structure. 2. too + adj. + to
4、do/ so that cant / adj. + enough to do T: How long does the spacecraft need to get to Mars at present? S: It takes months. Because our spacecraft are too slow to carry large numbers of people to Mars at present.too + adj. + to do/ so that cant / adj. + enough to do e.g. Sandy太年轻了而不能去上学。Sandy is too
5、young to go to school.Sandy is so young that she cant go to school.Sandy is not old enough to go to school.3. at the speed ofT: How long does the spacecraft need to get to Mars in the future?S: By the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of l
6、ight.4. Life on MarsT: How many aspects does the article tell us about the life on Mars? What are they?S: Five aspects. They are about food, gravity, houses, free time and schools.T: Describe life on Mars from the five aspects.Food: Food would most probably be in the form of pills and would not be s
7、o tasty.Gravity: The gravity on Mars is only about three-eighths of that on the Earth.Houses: Compared with life on the Earth, people would have more space.Free time: Robots would do most of their work so that they could have more time to relax.Schools: Every student would have a computer connected
8、to an interplanetary network.5. Language points(1) in the form of “以的形式” Would you like the food in the form of pills?Of course not. I hate eating pills so far.(2) three-eighths “八分之三” 基数词表示分子，序数词表示分母。如果分子大于 1，分母要用复数形式。Three-fifths (五分之三) of the students in my class are girls.(3) compared with/to“与相
9、比较”I compared the first report with the second.You did a good job.(4) so that “以便”，表目的We should plant more trees so that we can have a better environment.(5) have a computer connected to 过去分词短语作后置定语What do you read in your spare time?来源:学优高考网 gkstkThe books written by Han Han are my favourite.6. Cou
10、ld humans survive on Mars without water, oxygen or food?来源:gkstk.Com7. Can you think of some suggestions to protect the Earth?【反思 反刍 反馈】【当堂反馈】I. 根据句意及提示写单词。1. He drives his car at the_（速度）of l00 km per hour.2. Can you_（想象）how they did such kind of work without any modern machines?3The young couple p
11、ut on their _(头盔)， and drove away quickly.4. The air _(污染) is very serious in the river.5. Do you know the names of the eight_（行星）?6.（2013甘肃兰州）When we_（比较）western culture with Chinese culture, youll find many differences.7. The theatre was_（挤满）with audience.8. These _(乘客)were so noisy on the bus.II.
12、 用方框中所给动词的适当形式填空。probable taste little compare comfortable 1. _ with life on Earth, life on Mars will be better in many ways.2. People will have _ space on Earth than on Mars.3. There will be_ no rain tomorrow.来源:学优高考网4. I seldom see a movie on the mobile phone because it makes me _.5.1 think vegetables are not as _ as fish.
