资源描述
Unit2 We have not found life on any other planets yet
一、 教学内容：Unit2 We have not found life on any other planets yet.
二、 课型：Reading and writing
三、 教学目标：
1、能掌握本单元的单词和短语:none, environment, solar system, group, university, light, impossible, out, communicate
2、能够识别文章的主题，读懂以太空为主题的文章并能识别细节，作出正误判断。
3、能够根据图片完成与主题相关的写作任务。
四、 教学重难点：
1、读懂以太空为主题的文章.
2、能用现在完成时简单介绍太空探索的话题和结合图片完成与主题相关的写作任务。
五、 教学准备：
六、 预习要求：
1、根据音标自学本课新单词；
2、查找相关资料，找出你认为本课较重要的语言点和短语。
七、 教学过程：
教学
步骤
教师活动
学生活动
设计意图
Step One
Warming-up (5’)
Lead in
1. See a video about Shenzhou-9 and answer a question.
What’s the video about?
2. Let students look at the pictures of spaceships and talk about something about Chinese spaceships.
For example:
Shenzhou-9 is a manned spaceship.
…
3. Show some pictures about some planets and lead into this lesson.
How many planets have you learned?
Have we found life on Mars yet?
…
1. See the video and answer the question.
(Shenzhou-9 has gone into space.)
2. Look at the pictures and talk about what you know about Chinese spaceships.
3. Look at the pictures and describe them.
通过观看神州九号飞船升天这个环节，让学生了解我国在太空探索领域取得的伟大成就，同时也引导学生轻松的进入本节课的主题。
Step Two
Pre-
reading
(5’)
Task1: Learn the new words
1. Show students some pictures and check the new words.
2. Organize the students to read the new words together.
3. Check the new words.
1. Look at the pictures to say out some new words
2. Read the new words together.
3. Give the answers.
引导学生谈论描述图片来学习新单词和句型，为学生扫清阅读障碍。
Step Three
While-
reading (18’)
Task2: Reading
1. Fast reading
(1) Ask the students to read the passage and choose the best title for it. (Activity 2)
(2). Check the answer.
2. Careful reading.
(1)Paragraph 1:
①Ask the students to read the Paragraph1 and answer the questions:
1) Has there been life on the earth for hundreds of millions of years?
2) Have we found life on any other planes yet?
②Organize some students to come to the blackboard and show out some difficult language points that they found in this paragraph.
(2)Paragraph 2:
①Fill in the blanks after reading it.
T: Please read paragraph 2 and fill in the blanks:
The Earth is a planet and it _______ ______ the sun. Seven______ _______ also go around the Sun. _____ ______them has an environment like the earth. So scientists haven’t _____life on them. The sun and its planets ______ ______ the solar system and our solar system is called the _______ or the Milky Way. There are _____ _____ stars in the Galaxy and our sun in ____ one of them.
②Organize some students to come to the blackboard and show out some difficult language points that they found in this paragraph.
(3)Paragraphs 3 and 4:
①Let the students answer the questions after reading them:
1. Are there any other galaxies in the universe?
2. Where have scientists sent spaceship?
3. Have spaceships visited most of the universe?
②Organize some students to come to the blackboard and show out some difficult language points that they found in these paragraphs.
(4) Paragraph 5
① Ask the students to read Paragraph 5 and check the true sentences.
1. To the universe, scientists have many questions without answers. ( )
2. Someone from other planets has tried to communicate with us, so we are not alone. ( )
②Organize some students to come to the blackboard and show out some difficult language points that they found in this paragraph.
(5) Ask the students to read the whole passage, check the true sentences, then check the answers. (Activity3)
(1) Scan the passage and choose the best title for it.
(2). Show the answer.
(1)Paragraph 1:
① Read the Paragraph1 and answer the questions:
1) Has there been life on the earth for hundreds of millions of years?
2) Have we found life on any other planes yet?
②Some students to come to the blackboard and show out some difficult language points that they found in this paragraph.
(2)Paragraph 2:
①Fill in the blanks after reading it.
The Earth is a planet and it _______ ______ the sun. Seven______ _______ also go around the Sun. _____ ______them has an environment like the earth. So scientists haven’t _____life on them. The sun and its planets ______ ______ the solar system and our solar system is called the _______ or the Milky Way. There are _____ _____ stars in the Galaxy and our sun in ____ one of them.
②Some students to come to the blackboard and show out some difficult language points that they found in this paragraph.
(3)Paragraphs 3 and 4:
①Answer the questions after reading them:
1. Are there any other galaxies in the universe?
2. Where have scientists sent spaceship?
3. Have spaceships visited most of the universe?
②Some students to come to the blackboard and show out some difficult language points that they found in these paragraphs.
(4) Paragraph 5
①Read Paragraph 5 and check the true sentences.
1. To the universe, scientists have many questions without answers. ( )
2. Someone from other planets has tried to communicate with us, so we are not alone. ( )
②Some students to come to the blackboard and show out some difficult language points that they found in this paragraph.
(5) Read the whole passage, check the true sentences, then show the answers. (Activity3)
要求学生快速阅文章，回答问题，帮助学生理解课文内容。
通过学生快速阅读，培养学生获取主旨的能力。并进一步理解文章的内容， 为进一步学习做好铺垫。
让学生带着任务（问题）去阅读课文，去找答案，有助于学生更加准确地获取信息，提高阅读效果和技能。学生通过分层次阅读文章，获取具体信息，把知识点和课文理解在分段学习得以突破。而小组活动能通过学生间的自主、合作学习，让学生充分地实践运用语言，并激发学生创造性思维的发展。
Step Four
Post-
reading
(10’)
1. Retell.
(1). Let the students fill in the blanks according to the passage. （Activity 4）
(2). Call back the answers
from two students then
retell the short passage
in the whole class .
2.Writing
(1). Let students look at the cartoon picture and answer the questions. (Activity 5)
(2). Check the answers.
(3).According to the Activity5’s answers, guide the students to discuss in groups, then write a short story about the people on Mars., then write a short story about the people on Mars.
Fox example:
We have just received a message from our spaceship to Mars. The spaceship has landed on Mars and has discovered people. These people haven’t sent us a message because they can’t hear us…
(4). Ask three students to show their short passage from the whole class.
(1). Fill in the blanks according to the passage (Activity 4).
(2).Show the answers then
retell the short passage .
(1). Let students look at the cartoon picture and answer the questions. (Activity 5)
(2). Check the answers.
(3).According to the Activity5’s answers, discuss in groups, then write a short story about the people on Mars.
Fox example:
We have just received a message from our spaceship to Mars. The spaceship has landed on Mars and has discovered people. These people haven’t sent us a message because they can’t hear us…
(4). Ask three students to show their short passage from the whole class.
复述课文能使学生加深对课文内容的理解。
通过写作，让学生巩固所学，并增强写作能力。适量的口头练习，让学生巩固本课时的语言重点。
Step Five
Summary（1’）
1.Get the students to sum up the language points.
T: What have we learned today?
Ss:….
2. Let the students to choose the best team in this lesson.
1. Sum up the language points.
2. To choose the best groups.
引导学生对这节课的总结，让学生做自由发言，培养学生自主学习，自主总结的良好学习习惯。
简短的评价使学生的课堂表现得到肯定并且可以激励学生的学习兴趣，树立学习英语的信心。
Step Six
Home-
work
（1’）
Write a passage about the people on Mars.
Finish the homework.
课后作业有助于学生巩固已学的知识，补充其他方面的锻炼。写作是阅读的拓展，让学生最终完全掌握语言，实践运用语言。
八、 板书设计： Unit 2 We have not found life on any other planets yet.
hundreds/ thousands /millions/ billions of T1 T2 T3
go around
none of … no one
be called far enough
There have/ has been…
…
一 、单项选择
( ) 1. — Where’s Mr Green?
— He _____ to Changsha.
A. have been B. has gone C. has been D. have gone
( ) 2. — Is Tom at home?
— No, he______ to town.
A. has been B. has gone C. goes D. will go
( ) 3. He promised to pick me up at the school gate. However, he _______ yet.
A. didn’t arrive B. doesn’t arrive C. isn’t arriving D. hasn’t arrived
( ) 4. — What is the weather like this summer here?
— There ____ very little rain.
A. has B. has been C. are D. have been
( ) 5. A number of tourists ______ Yangzhou many times because it is such a
beautiful city.
A. have been to B. has been to C. has gone to D. have gone to
( ) 6. The earth goes around the sun, and _______ planets also go around it.
A. the other seven B. seven another
C. seven others D. more seven
( ) 7. — How many of these films have you seen?
—______ of them. I haven’t even heard of them before.
A. No one B. None C. Both D. All
( ) 8. She’s not strong enough ______ walking up mountains.
A. to go B. going C. go D. went
( ) 9.There are ________ people in the zoo on Children’s Day.
A. one hundreds B. two hundreds of
C. hundreds of D. hundred of
( ) 10. —Have you finished your homework?
— ________. Just half of it. How about you ?
A. Not at all B. Not likely C. Not a bit D. Not yet
Keys: 1. B 2. B 3. D 4. B 5. A
6.A 7. B 8. A 9. C 10. D
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