题目内容

【题目】根据句子意思,选择正确的图片。
A. B. C.
D. E.
(1)—What does your brother do ?
—He is a policeman .
(2)—Which season do you like best?
—I like summer best . Because I can swim .
(3)—What is the elephant doing now?
—It is drinking water .
(4)—What is your mother doing ?
—She is cooking dinner .
(5)Please remember the traffic rules. We must stop at a red light .

【答案】
(1)C
(2)D
(3)E
(4)A
(5)B
【解析】(1)根据 —What does your brother do ? —He is a policeman . “—你的哥哥是做什么的?—他是一名警察。”故与C图一致,故选C。
(2)根据—Which season do you like best? —I like summer best . Because I can swim “—你最喜欢哪个季节?—我最喜欢夏天。因为我可以游泳。”故与D图一致,故选D。
(3)根据—What is the elephant doing now? —It is drinking water .“—那头大象现在正在做什么?—它正在喝水。”可知此处与E图一致, 故选E。
(4) 根据—What is your mother doing ? —She is cooking dinner . “—你母亲正在做什么?—她正在做晚饭。” 可知此处与A图一致,故选A。
(5)根据Please remember the traffic rules. We must stop at a red light .“请记住交通规则。我们必须在红灯时停下来。”可知此处与B图一致,故选B。

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【题目】Do you want to know how and why a fall leaf changes color? We first have to understand what leaves are and what they do.

Leaves are the worlds food factories. Plants take water from the ground through their roots and take CO2 from the air. Plants use sunlight to turn water and CO2 into glucose(葡萄糖), a kind of sugar. Plants use it as food for energy and growing.

A chemical called chlorophyll in the leaves gives plants their green colour. As summer ends and autumn comes, the days get shorter and shorter, and trees know to begin getting ready for winter.

During winter, there is not enough sunlight or water. Trees rest during this time and live on the food they store during the summer. They begin to shut down their food-making factories. As the green chlorophyll disappears from the leaves, we begin to see yellow and orange leaves.

The bright reds and purples we see in leaves are made mostly in autumn. In some trees, like maples, sunlight and the cool nights of autumn turn the glucose in the leaves into a red colour. And we can enjoy the beautiful red leaves during autumn.

【1】Which should be in the box? sunlight+ +CO2 glucose

A. air B. sugar C. water D. wind

【2】The underlined word chlorophyll means __________.

A.叶绿素 B. 脂肪 C.蛋白质 D.淀粉

【3】The leaves turn yellow because they are short of(缺少) __________.

A. water and CO2

B. glucose and energy

C. sunlight and water

D. sunlight and CO2

【4】Which of the following is NOT true?

A. When autumn comes, the days get shorter and shorter.

B. During winter trees live on the food they store in summer.

C. During winter some of yellow and orange colors are still in the leaves.

D. Trees begin to stop making food in summer.

【5】This passage tells us_____________.

A. the plants can grow well only with the sunlight

B. there are all kinds of plants on the earth

C. not all the colors of the leaves are from chlorophyll

D. maple leaves change the color as other trees

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