（填词补文）下面的短文有10处空白，短文后列出12个词，其中10个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
Protecting the Few
How we live our lives affects the environment. The environment is all the things around you. All across Earth, humans are __31__ the environment in small and large ways. We cut down trees to build houses. We plow fields to __32__ crops. We pour waste into rivers, lakes and oceans .We use larger nets and bigger boats to catch __33__ numbers of fish. Activities like these affect plants and animals. They __34__ affect things like the soil and water.
Sometimes our actions make the number of a __35__ plant or animal get larger. For example, if you planted roses in your yard, there would be more roses in your area.
Our activities can also __36__ to a smaller number of plants and animals. If a park were turned into an apartment building, what would happen to the plants and animals there? Well, they would __37__ die or move to other __38__. There would be fewer plants and animals.
Pollution and other activities sometimes cause the number of a species（物种）to become so __39__ that it cannot survive. A species that is in __40__ of dying out is called an endangered（濒危的）species.
第31题：根据文章，选择对应的单词。
A. changing
B. grow
C. lead
D. either
E. huge
F. places
G. certain
H. also
I. increase
J. small
K. survival
L. danger
A
