1、3. Emotional aims: （optional）激发学生探索宇宙的兴趣。4. Culture awareness:. The key points and difficult points1. Key points:Words and phrases: storm, weigh, journey, excitement, generally, limit, be named after sb., asas, at a distance of , It takesto do sth.Sentences: Its diameter is 53% as wide as that of th
2、e 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 .each other. It has been two days since we landed on Mars. G
3、rammar: passive voice Difficult points： Its diameter is 53% as wide as that of the earth. It has been two days since we landed on Mars. Learning strategies 通过1a学习预测文章的内容。 通过1b利用图表复述课文。. Teaching aids火星、罗马战神Mars、太阳系等的图片/乒乓球/小皮尺/小黑板/ppt等。. Teaching procedures Stage（time period）InteractionpatternsTeach
4、er activityStudent activityRemarks1Getting 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: Whats this? Oh, your geography is quite good. Its solar system. Whats th
5、is, then? Who is he? He is the Roman god of war, Mars. And the planet Mars is named after him. 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? You got it! （drops the ball ） Oh, my god! Do you know why the ba
6、ll falls to the ground? Yes! Its the gravity that makes it fall to the ground. You know the story of Newton, dont you?Learn the new words and phrases.Ss: 太阳系。 火星。 Sorry.直径。重力。 Yes. 允许学生用汉语表述新词。老师要及时用英语板书并讲解：solar system, Roman, god, be named after sb., diameter, gravity。2Pre-reading（2mins）Individual
7、 workLet the Ss read the statements in 1a and encourage them to predict which is/are right. Now, read the four statements in 1a and predict which of them is or are right. Write down F/T on the left.Read the statements in 1a and predict.把这四点用小黑板或大屏幕呈现更好。这样学生就不用打开课本，以保持神秘感。学生预测后不要马上判断正误。3While-reading
8、（10mins）Step 1:Let the Ss read 1a quickly and check the answers. Now, please read 1a quickly to check whether you have predicted correctly. When you finish, raise your hand. Hi, class! Who has predicted all the answers correctly? No one? Dont worry. Youll do better next time.Step 2: Let the Ss read
9、1a again and do 1b. Check the answers. Now, please read 1a again and do 1b. If you finish, put up your hand. Have you finished it? xxx, whats the diameter of Mars? What color is it, xxx? What shape is it, xxx? Read 1a quickly and check the answers.Read 1a again and do 1b. Yes.S1: Its 53% as wide as
10、that of the earth.S2: Its red and orange.S3: It looks like a ball. S4:4Post-reading（14mins）Group work Let the Ss read 1a again. Discuss in groups to find out the difficult and key points. Please read 1a again. Discuss in groups to find out the difficult and key points. When you finish, raise your ha
11、nd. Lets solve the problems first. Which group has questions? Oh, you have got the most important point. Boys and girls, please turn to page 121, you will find it on the right side of the page. Are you clear now? Any more questions? Who can help him? Wow, you are really smart. Could you tell us the
12、meaning of “storm” and “weigh”in Line 8 and Line 10. Wonderful! Lets give him a big hand! What do you think are the important points? Let the Ss discuss in groups the questions in 1c. Choose a member to state the reasons. Read the questions in 1c. Discuss in groups and state the reasons. When you fi
13、nish, raise your hand. Now, lets begin with Question 1. Which group? Good! And question 2?Read 1a again. Discuss in groups to find out the difficult and key points. We dont understand “Its diameter is 53% as wide as that of the earth”. How do we understand the word “tell”in “You can tell which plane
14、t issky.” 辨认，辨别。 “Storm”的意思是“暴风”, “weigh” 的意思是“有多重”。 倍数+as+形容词+as S5: be named after, nameafterS6:Discuss in groups the questions in 1c. Choose a member to state the reasons. We dont think Mars has a good climate for plants. Because in spring and summer, the surface of Mars is covered by strong stor
15、ms. We dont think Mars is a useful place to dry fruit. Because the temperature is low. The highest temperature is only 28.对于学生提出的问题，如果教材附页有解释，可以让学生自己先看，若学生看不懂老师再解释。5FinishingTask 2（8mins）Step1: Let the Ss complete the letter and circle the new words. Now, read the e-mail and complete the letter. If
16、you finish, put up your hand. Now, lets check the answers. Lets begin with xxx, then one by one. Are you clear? xxx, go ahead, please. Step2: Let the Ss learn the new words by synonyms or word formation. For example: generallyusually, journeytrip, limit control, excite（v）+ment=excitement （n） Look at
17、 these new words. Can you guess their meanings? Please turn to the vocabulary list and try to pronounce them by yourself. If you have problems, raise your hand. Who wants to try? Very good. Pay attention to “generally”. Now, follow me, “generally”. Look at the first sentence. If you dont understand
18、it, turn to page 122 for help.Complete the letter and circle the new words. since took getLearn the new words by synonyms or word formation. generally, journey, limit, excitement generally.9Summarizing and assigning homework （6mins） Let the Ss go over the lesson and sum up the key points. Go over th
19、e lesson and sum up the key points. What are the key points, class?HMK Please read the instructions of 3a and 3b. Find out what you should do. Are you quite clear? xxx, please explain what you should do. Im really satisfied with your understanding. I hope everybody will finish the two tasks. I will
20、check your letters in the next period.Go over the lesson and sum up the key points. 表达倍数。 It takes sb.+time + to do sth. It has been +一段时间+since+ 从句 It is +一段时间+since+ 从句 First, Im Kangkang. I should write a letter to Uncle Stephen to ask him some information. Second, Im Uncle Stephen. I should read
21、 my partners letter and answer his questions in the name of Uncle Stephen. Blackboard designIm excited about the things that will be discovered in the future.solar systemRomanGod of warbe named afterdiametergravitygenerallyjourneylimitexcite+ment=excitementGrammar:倍数+as+adj/adv+as百分数Its diameter is 53% as wide as that of the earth.It has been +一段时间+since+ 从句It is +一段时间+since +从句It takes/took+sb.+一段时间+to do sth.
