9B-Unit4-reading課件

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 太陽系太陽系 2021/8/29one-half the diameter (直徑直徑) 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飛行的太空穿梭機進行的旅程可以光速一半速度飛行的太空穿梭機進行的旅程可能只要花約能只要花約20分鐘的時間。分鐘的時間。 分析：此句是分析：此句是that連接的定語從句。連接的定語從句。that引導的定引導的定語從句修飾先行詞語從句修飾先行詞spacecraft, 從句中的動詞的人從句中的動詞的人

8、稱和數(shù)由先行詞稱和數(shù)由先行詞spacecraft決定。決定。2021/8/2292021/8/230 Every student would have a computer at home connected to an inter-planetary network. 每個學生在每個學生在家里有一臺連接星際網(wǎng)絡的電腦。家里有一臺連接星際網(wǎng)絡的電腦。 connect to 意思是意思是“與與連接連接”。這里的。這里的connected to 是過去分詞后置作定語是過去分詞后置作定語,修飾修飾computer。當然我們也可以用當然我們也可以用connect to結構表示結構表示“把把 和和連接起

9、來連接起來 ”。 2021/8/2312021/8/232Task 1 -WordsPage 54, Finish B12021/8/2332021/8/234p目前；現(xiàn)在目前；現(xiàn)在p變得越來越擁擠變得越來越擁擠 p以光速的一半運行以光速的一半運行 p許多許多 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 與與相比相比p 生病生病 p 被連接到被連接到p 在許多方面在