1、人教課標 高一 必修 3 Unit 4,Unit 4 Astronomy the science of the stars,Learning about language,Use the correct prefix or suffix for each word. Write out the new word and explain the difference between the two.,Discovering useful words and expressions,un-,presence violence confidence difference patience,uncer

2、tain unfair unpaid unlike unkind,-al,-ist,cultural global universal agricultural mathematical,artist physicist chemist biologist scientist,Choose the correct word to fill in the each of these blanks.,At the beginning, the earth had no _. dust B. atoms C. water D. matter,2. The development of a plane

3、t generally depends on _ combining together. atoms B. rocks C. gases D. water 3. The _ of mammals happened after the disappearance of the dinosuars. harmful B. system C. spread D. method,4. Mammals _ when the animals that were to them disappeared. prevent B. multiplied C. depended D. existed,Complet

4、e the following passage with the words and phrases below in the correct form.,astronomy atom fundamental puzzle exist prevent from as a result give birth to,Is the moon a planet? This question is _ if students are to show that they understand the nature of _. Some scientists think that the earth _ t

5、he moon because the moon circles our planet. Others believe that the moon _ before the earth was formed.,fundamental,astronomy,gave birth to,existed,They think that earlier in time it travelled through space as a small planet which was caught by the earths gravity. _, it goes around our planet. The

6、evidence for this theory is that the _ that make up the rocks on the moon seem to be different from those on earth.,As a result,atoms,What is clear is that the moon is smaller than the earth and this _ it _ escaping form the earth. Although its origin may still be a _, the moon can never be anything

7、 more than a satellite of the earth.,prevents from,puzzle,In pairs divide these adjectives into two groups: emotional words and calm words.,violent patient gentle angry rude relaxing kind shocked excited easy-going calm crazy,patient gentle relaxing kind easy-going calm,violent angry rude shocked ex

8、cited crazy,I. 根據(jù)下列各句句意及所給單詞的首字母或漢語提示, 寫出所缺單詞的正確形式。 1. _ (生物學) is the science which is concerned with the study of living things. 2. As you go up a mountain, you have to overcome the earths g_ which pulls you down.,課堂練習,Biology,gravity,3. China successfully sent up its first man-made space _ (人造衛(wèi)星)

9、on April 24, 1970. 4. The policemen were sent to find the black box because it showed why the plane had _ (墜毀). 5. The United Nations World Food Program says potatoes can grow in almost any _ (氣候).,satellite,crashed,climate,II. 用所給詞的適當形式填空。 1. _ (culture) exchanges are a way of building bridges between nations. 2. A _ (physics) is a person who studies physics or whose job is connected with physics. 3. It is _ (fair) that he gets very little in reward for his hard work.,Cultural,physicist,unfair,4. If one loses _ (confident), he can never be expected to do his work well. 5. There was a sli