Ⅰ. Complete the sentences with the proper form of the words given. 用所给单词的适当形式完成句子。
1. Look! The birds (fly) madly in the park.
2. Ssh! The baby (sleep) in the bedroom.
3. Look, the girl (play) games with her pet cat. They are happy.
4. Come and see! That pigeon (look) at itself in the water!
5. At the moment, the Smiths (watch) a TV programme on beavers.

1. are flying 2. is sleeping 3. is playing 4. is looking 5. are watching

Ⅱ. Complete the passage with proper words or the proper form of the words given. 用适当的单词或所给单词的适当形式完成短文。
How do we know dinosaurs(恐龙) lived on the earth?
We know because we have found fossils(化石) in rocks (岩石) all over 1. world. In the picture, the science workers 2. (dig) dinosaur fossils carefully out of the ground. Then they 3. (take) them to a museum (博物馆). At the museum, scientists will study the fossils.
Scientists study other animals to learn 4. dinosaurs. They learn that many dinosaurs were very big. They learn that some dinosaurs could walk, some could 5. (swim) and some could fly.
Scientists study fossil footprints (脚印) to see how 6. (fast) dinosaurs moved. Some dinosaurs moved very 7. (slow). Some moved faster than humans(人类).
Scientists study the fossil teeth. They find some dinosaurs eat meat, while others eat 8. (plant).
Scientists also find fossils of plants, fish, and other animals. It helps 9. (we) learn what earth was like when dinosaurs lived here. But no one knows for sure about the reasons 10. dinosaurs disappeared(消失) on the earth.

1. the 2. are digging 3. will take 4. about 5. swim 6. fast 7. slowly / slow 8. plants 9. us 10. why

Ⅲ. Answer the questions according to Exercise Ⅱ. 根据练习Ⅱ的内容回答问题。
( )1. In which part of a newspaper can we read the passage?
A. Art.
B. Sports.
C. People.
D. Science.
( )2. What do scientists study to learn how fast dinosaurs moved?
A. The fossil teeth.
B. The fossil footprints.
C. Fossils of plants and fish.
D. Fossils of other animals.

1. D 2. B