内容正文:
《Unit 8 Save Our World》同步练习
一、单项选择
1.Before playing the game, the teacher divided the children two groups.
A. of B. into C. in D. with
2.—Look! What's on the ground?
—Oh, it's my sweater. Please help me .
A. pick it up B. put it on
C. give it out D. take it off
3.He didn't use to be active in school, but now he gets lots of .
A. choices B. money
C. attention D. problems
4.I like the life in the countryside. There is less air than in big cities.
A. pollution B. information
C. noise D. change
5.The sports meet will begin in 20 minutes, we must right now.
A. start out B. put out
C. come on D. go by
6.Jiao Yulu has been for many years, but his spirit is still encouraging us.
A. die B. died C. dying D. dead
7.The Internet makes possible for everyone to get education anywhere and anytime.
A. it B. this C. that D. one
8.—You're late. Would you mind the reason to me?
—Sorry, I took the wrong bus this morning.
A. explaining B. repeating
C. improving D. preparing
9. —What will you your old bikes?
—I'll give them to the recycling centre.
A. deal with B. do with
C. make up with D. play with
10.—Yang Ming, could you please teach me Chinese?
— .
A. Not at all B. Come on
C. With pleasure D. That's all right
二、完形填空
What does the word ecology mean? It was 11 by Ernst Haeckel, a German biologist. He joined two Greek words: oikos, meaning "house", and logie, meaning "the study of".Together they mean "the study of the house". The "house" Haeckel had in mind is our 12 ,Earth. The Earth is home for all living things — humans, animals, plants and even tiny microbes.
To study a house is to learn how its residents(居民) use it. An ecologist is a scientist who studies the 13 between organisms (生物)and their environment. The environment is an organism's surroundings. It may 14 water, gases, rocks and temperature.
Ecologists also study the balance of using the environment while protecting it.
An ecologist once asked a bo