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Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: storm, weigh, journey, excitement, generally, limit, be named after sb., as…as…, at a distance of …, It takes…to do sth.
Sentences: Its diameter is 53% as wide as that of the earth.
You can tell which planet is Mars because it is bright, red in the night sky.
The gravity on the surface of Mars is about two-fifths as strong as it is on earth.
It takes a spaceship about eight months to reach Mars from the earth when the two planets are closest to each other.
2． Difficult points： Its diameter is 53% as wide as that of the earth. Be named after/ by
The temperature’s pronunciation.
Ⅳ. Learning strategies 1 通过1a学习预测文章的内容 2通过mind map 学习和复述课文。
Ⅴ. Teaching aids Micro-video, multi-media act.
Unit 4 Topic2 Section C
龙岩市初中英语名师工作室领衔人 蔡华茂
Ⅵ. Teaching procedures
Stage and patterns(time period)Teacher activityStudent activityLead-in
5Play micro-video Or show some pictures about Mars, let Ss know some latest situation in exploring Mars, and motivate students’ intertst in exploring space. Watch 1Getting students ready for learning
(5mins) Class activityPresent some pictures and objects to learn the new words and phrases: solar system, Roman, god, be named after sb., diameter, gravity.
T: What’s this?
T: Oh, your geography is quite good. It’s solar system.
T: What’s this, then?
T: Who is he?
T: He is the Roman god of war, Mars. And the planet Mars is named after him.
T: Look at me! I will measure the diameter of the ping-pong ball. Oh！Its diameter is 5 centimeters long. Could you tell me what diameter means?
Can you tell me what’s the diameter of Mars?
T: You got it! (drops the ball ) Oh, my god!
T: Do you know why the ball falls to the ground?
T: Yes! It’s the gravity that makes it fall to the ground.
Can you tell me how strong the gravity is on the sureface of Mars?Learn the new words and phrases.
Ss: 太阳系。
Ss: 火星。