四、完形填空
阅读下面语篇,从各小题所给的 A、B、C、D 四个选项中,选出最佳选项。
When you ____ around,you can find plants almost everywhere(到处),on the top of mountains and under the water. There are over 300,000 kinds ____ plants. The most common plants are flowers and trees.
Plants go through a process(过程)of photosynthesis(光合作用). Plants use sunlight to help them ____ food like sugar and O₂.
Plants are multicellular organisms(多细胞生物). They use photosynthesis to make ____ own food. They produce most of the world’s O₂,and they are ____ in the food chain(食物链),____ many organisms eat plants or eat organisms which eat plants.
Why are plants so important? Almost all living things ____ plants to live. Animals can’t ____ food directly from the sunlight as plants. They need to get the sugars and other things to live. And they need O₂ from plants to ____.
Plants have something in common. First,plants make their own food through photosynthesis. Then,plants have chlorophyll(叶绿素). It can make leaves become ____.
All in all,plants are common but amazing.
()1. A. work
B. look
C. use
D. jump
()2. A. of
B. on
C. with
D. in
()3. A. come
B. change
C. produce
D. play
()4. A. their
B. its
C. his
D. hers
()5. A. interesting
B. fine
C. dark
D. important
()6. A. because
B. or
C. but
D. so
()7. A. enjoy
B. make
C. plan
D. need
()8. A. mean
B. rise
C. get
D. see
()9. A. breathe
B. eat
C. drink
D. know
()10. A. yellow
B. green
C. black
D. red

BACADADCAB

1. 考查固定搭配。"look around" 表示“环顾四周”，符合语境，选B。
2. 考查固定短语。"kinds of" 表示“各种各样的”，选A。
3. 考查动词词义。光合作用是植物“生产”食物，"produce" 符合，选C。
4. 考查代词。主语是 "They"，对应 "their own"，选A。
5. 考查形容词。下文讲植物在食物链中的作用，说明其“重要”，选D。
6. 考查连词。后半句解释前半句原因，用 "because"，选A。
7. 考查动词。生物“需要”植物生存，选D。
8. 考查动词。动物不能像植物一样从阳光“获取”食物，选C。
9. 考查动词。氧气用于“呼吸”，选A。
10. 考查常识。叶绿素使叶子呈“绿色”，选B。