9B-Unit4-reading课件

1、2021/8/212021/8/22 Read Read the article andthe article and find out the keyword find out the keyword of each paragraph.of each paragraph. a force that keeps us from floating in the air2021/8/23Para12021/8/24 pollutedthe rapid increase in populationWhy?2021/8/25Howdeal with?Hope for?2021/8/262021/8/

2、272021/8/28the solar system 太阳系太阳系 2021/8/29one-half the diameter (直径直径) of Earth2021/8/210two moons:2021/8/2112021/8/2122021/8/213It may be difficult to imagine, people will live on the planet Mars.by the year 21002021/8/214Para22021/8/215How long?2021/8/216How long?How make it?2021/8/217Para 3-420

3、21/8/218Read Para. 3-4 and do some T or F exercises( ) 1. Humans need food, water and oxygen to survive.( ) 2. On Mars, plants could be grown and people could have enough oxygen and water . ( ) 3. Mars has threes times the gravity of Earth.( ) 4. The boots will be special for people on Mars in order

4、 not to float off into spaceTFFTthree-eighths of2021/8/219Para 5-62021/8/220Part 3 (Para. 5-6) Advantages of life on Mars1. People will have _ space.2. _ will do most of our work.3. Well have more time to _.4. Students will study in _ schools.moreRobotsrelaxonlineRead and fill in the blanks2021/8/22

5、12021/8/222Page 55, Finish B32021/8/223 speed boots space houses robot on Marsonline teacher2021/8/224What will be changed on Mars?Page 55, Finish B42021/8/225AdvantagesAdvantages of living on of living on MarsMarsIts not _or_.The _ is more convenient . People will wear special _People will have _sp

6、ace ._ will do most of our work.Well have more time to _.Students will study in _ schools. crowded polluted spacecraft boots . moreRobots relax online2021/8/226_ will be a problem.Food would probably be in the form of _ and wouldnt be _.Space travel might be _ make people feel _.Gravity tasty ill /

7、sick uncomfortable pills 2021/8/2272021/8/228The journey might take only about 20 minutes in spacecraft that travel at half the speed of light.用用以光速一半速度飞行的太空穿梭机进行的旅程可以光速一半速度飞行的太空穿梭机进行的旅程可能只要花约能只要花约20分钟的时间。分钟的时间。 分析：此句是分析：此句是that连接的定语从句。连接的定语从句。that引导的定引导的定语从句修饰先行词语从句修饰先行词spacecraft, 从句中的动词的人从句中的动词的人

8、称和数由先行词称和数由先行词spacecraft决定。决定。2021/8/2292021/8/230 Every student would have a computer at home connected to an inter-planetary network. 每个学生在每个学生在家里有一台连接星际网络的电脑。家里有一台连接星际网络的电脑。 connect to 意思是意思是“与与连接连接”。这里的。这里的connected to 是过去分词后置作定语是过去分词后置作定语,修饰修饰computer。当然我们也可以用当然我们也可以用connect to结构表示结构表示“把把 和和连接起

9、来连接起来 ”。 2021/8/2312021/8/232Task 1 -WordsPage 54, Finish B12021/8/2332021/8/234p目前；现在目前；现在p变得越来越拥挤变得越来越拥挤 p以光速的一半运行以光速的一半运行 p许多许多 p漂入太空中漂入太空中Task 2 -Phrasesat presentbecome more and more crowded travel at half the speed of lightlarge numbers of = a number offloat off into space2021/8/235p 与与相比相比p 生病生病 p 被连接到被连接到p 在许多方面在