内容正文:
完形填空之居住环境专练
(2021·江苏南京市·中考真题)
What does the word ecology mean? It was 18 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 19 , Earth. 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 20 between organisms (生物)and their environment. The environment is an organism’s surroundings. It may 21 water, gases, rocks, and temperature.
Ecologists also study the balance of using the environment while protecting it.
An ecologist once asked a boy 22 he thought it meant to protect the environment.
The boy said, “You go into the forest and look for somebody who wants to cut down a tree. You take away his axe. You tell him about how 23 trees are. You say they are good for natural beauty, saving soil, and giving shelter to birds and other animals. ”
“ Good answer,” said the ecologist, “ 24 it may not be easy to find a woodcutter to talk to. Also, remember that sometimes it’s 25 to cut down a tree. If we cut down too many trees, the forest will disappear. If we don’t cut down any trees, we won’t get any resources from the forest. We have to find the right 26 . ”
“I get it,” the boy said. “We need the forest’s 27 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,” added the ecologist. “Then you will know how to protect the natural environment.”
18.A.proved
B.invented
C.marked
D.accepted
19.A.planet
B.building
C.project
D.surface
20.A.feeling
B.relationships
C.distance
D.competitions
21.A.pollute
B.control
C.include
D.reduce
22.A.who
B.whose
C.why
D.what
23.A.wild
B.common
C.wealthy
D.important
24.A.but
B.and
C.so
D.or
25.A.comfortable
B.tiring
C.impossible
D.necessar