《2025年伴你学单元达标测试卷九年级英语上册译林版》

D
It is easy to believe that the daily life of a plant is simple and boring. They seem to just stand there and take a sunbath. In fact, however, plants are always busy doing many things. Being rooted in the ground, they must make their own food through photosynthesis. Besides, they need to do something to protect themselves from animals that want to eat them. What’s more, measuring (测量) light is also one of their daily activities. This helps plants to plan better for the future.
Plants have to measure the changes in the amount of daylight. This helps them to tell what time of the year it is. If a plant is beginning to get more daylight, it knows it’s spring. Because of this, it may then start producing flowers. If the amount of daylight starts to get low, the plant knows that autumn is coming. It may start to store “food” for its growth. The potato plant, for example, will make tubers (块茎)—the potatoes that we eat.
Plants record not only the amount of daylight they receive, but also the quality of light. Some types of light can better help plants grow. Direct sunlight, for example, works better than light that is being filtered (透过) through the leaves of other plants. A plant can’t get the right type of light when it is shaded by other plants. It may then begin to grow taller or produce larger leaves in order to get more sunlight.
( D)37. What does the underlined word “This” in paragraph 1 refer to?
A. Plants’ busy day. B. Taking a sunbath.
C. Plants’ simple life. D. Measuring the light.
( A)38. Paragraph 2 mainly tells us ________.
A. how plants know the seasons
B. how plants grow in each season
C. how light changes during the year
D. how plants record the quality of light
( A)39. What might plants do when they can’t get direct light?
A. Produce larger leaves. B. Save up more food inside.
C. Change their growth speed. D. Stop growing for better light.
( B)40. Which is the best title for the passage?
A. Light “Feeds” Plants B. Plants “See” Light
C. Light “Shows” Power D. Plants “Say” Words

答案： 37. D 38. A 39. A 40. B