一、根据句意及汉语提示写单词。
1. As an animal lover, I can't stand people who are(残酷的) to animals.
2. We should make more(法律) and rules to deal with waste.
3. The forest(生态系统) provides a lot of resources and services for humans.
4. Agriculture (农业) is going to be one of the greatest(行业) in the next 20 years.
5. We all support Matt's(科学的) research. He studied it for a long time.

1.cruel 2.laws 3.ecosystem 4.industries 5.scientific

二、用括号中所给单词的适当形式填空。
6. As we all know, staying up late is(harm) to our health.
7. Tom is one of(strong) boys in our class and he likes doing sports very much.
8. It is a wonderful idea that we can put our old books and clothes online for(sell).
9. Mike borrowed a book yesterday. He(keep) the book for two days so far.
10. Thanks to people's protection, the number of Asian elephants in China(be) gradually increasing.
11. The(danger) animals should be better protected so that future generations (后代) could still see them.
12. This city is facing more and more(environment) problems.
13. Tea(bring) to Western countries in the 19th century.
14. Hainan Island is a wonderful place to visit. It lies at the(south) end of China.
15. House prices(fall) by 2.5% in November compared with October.

6.harmful 7.the strongest 8.sale 9.has kept 10.is 11.endangered 12.environmental 13.was brought 14.southern 15.have fallen

三、完形填空。
What does the word “ecology” mean? It was16_ by Ernst Haeckel, a German biologist (生物学家). 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 our17_, Earth. Earth is home for all living things — humans, animals, plants, and even18_ microbes (微生物).
To study a house is to learn how humans use it. An ecologist is a scientist who studies the19_ between organisms (生物) and their environment. The environment is an organism's surroundings. It may20_ water, gases, rocks and temperature.
Ecologists also study the balance (平衡) of21_ the environment while protecting it.
An ecologist once asked a boy22_ he thought the meaning of protecting the environment was.
The boy said, “You go into the23_ and look for somebody who wants to cut down a tree. You take away his tool. You tell him about how24_ trees are. You say they are good for natural beauty, saving soil (土壤), and giving shelter to birds and other animals.”
“Good answer,” said the ecologist, “_25_ it may not be easy to find a woodcutter to talk to. Also, remember that sometimes it's26_ to cut down a tree. But if we cut down too many trees, the forest will disappear.27_ we don't cut down any trees, we won't get what we need from the forest. We have to find the right28_.”
“I get it,” the boy said. “We need the29_ for wood and paper, or we might not have desks or notebooks for school.”
“Exactly — and school is a good place to learn about ecology,”30_ the ecologist. “Then you will know how to protect the natural environment.”
()16. A. refused
B. created
C. marked
D. accepted
()17. A. planet
B. building
C. project
D. surface
()18. A. little
B. tiny
C. big
D. huge
()19. A. feelings
B. relationships
C. customs
D. competitions
()20. A. pollute
B. control
C. include
D. challenge
()21. A. wasting
B. harming
C. using
D. developing
()22. A. who
B. whose
C. why
D. what
()23. A. forest
B. house
C. park
D. field
()24. A. wild
B. common
C. wealthy
D. important
()25. A. but
B. and
C. so
D. or
()26. A. comfortable
B. tiring
C. impossible
D. necessary
()27. A. Though
B. When
C. Because
D. If
()28. A. mysteries
B. temperatures
C. ways
D. symbols
()29. A. soil
B. forest
C. scene
D. tool
()30. A. added
B. found
C. wrote
D. read

16－20.BABBC 21－25.CDADA 26－30.DDCBA