上学期 Unit 12 Mainly revision

II. Revision

　　Revise the dialogue in Lesson 45.

III. Leading in

　　Show some pictures that introduce the sun, the moon, the earth, space, spaceship, satellite, universe, etc.

     　　Ask the students to look at the pictures and say: Look, this is a satellite. Today we are going to read about it. The title of the passage is “The Universe and Man - made satellite”. Watch the video about satellite and speak out what a satellite is.

　　After watching, let the students discuss the questions for a while. Get them to give the explanations in English.

　　For instance: A satellite goes round the earth. The moon is a satellite of the earth. There are many man-made satellites in the space too. Then explain that man-made is an adjective meaning made by people. “Man” in this text means “the human race”.
IV. Reading

　　Get the students to look at the questions below:

　　What do we mean when we talk about the universe?

　　Why can’t many stars be seen?

　　How far is the moon away from the earth?

　　Has the moon been visited by man already?

　　Have any man-made machines travelled farther than the moon? What are they?

　　What do you know about the universe?

　　Why do we say the world itself is becoming smaller and smaller?

　　Read the passage carefully and discuss the answers in pairs. Finally check the answers with the whole class.

　　Give the students some more background information about spaceships without people: Some spaceships have been sent to visit different planets, such as Mars, Venus and Jupiter.

　　Ask the students to write down the answers in the exercise books. The suggested answer to the last question is: With the help of the man-made satellites, it is easy for different countries to send and receive messages. We can also use satellites to help us make telephone calls to foreign countries.

V. Practice

　　Play Speech Cassette or video for the students to listen or watch. For the second time, let the students repeat after it, at last, the students can read the passage at the same time while playing the sounds.

　　Give the students some free time to practice reading aloud. Then ask some of them to read in class. Check their reading. Explain:

　　so far: We have learned 2000 words so far.

　　With one’s help: With the teachers help, he caught up with the other students.

　　Knowledge: Our knowledge of the USA is not so good.

　　Thanks to: Thanks to Tom’s help, we finished the work on time.

VI. Do Exercise below:

　　The universe means the earth, the sun, the moon and the stars, and the space ______ them. Many of the stars are so ______ away that we ______ see them.

　　The moon, our ______, travelled ______ the earth. It has been visited _____ man in  spaceships.

　　Man-made ______ have been sent up ______ space by many countries. They go ______ the earth. They are used for helping us to learn more ______ the earth, the weather and other things. They are also used for sending and ______ messages.  It makes people ______ different countries understand each other better. So people say the world itself is becoming a much ______ place. People call the small place “the global village”.

　　The answers: between, far, can not, satellite, round, by, satellites, into, round, about, receiving, from, smaller

VII. Consolidation

　　Read the passage again, ask the students to find sentences what replace those in text.

　　1) Text —Many of the stars cannot be seen because they are too far away.
Exercise —Many of the stars are so far away that we cannot see them.

　　2) Text —The moon travels round the earth. It is our satellite.Exercise —The moon, our satellite, travels round the earth.

VIII. Homework

　　1.Fill in the blanks。

　　Man-made s ________ have been s ________ up into space by many countries. They can be used for sending and r ________ messages. For example, w ________ their help, China can send its TV and radio p ________ to the other side of the w ________. We can also use them to help us m ________ telephone, calls to f ________ countries. T ________ to the