零五网 全部参考答案 课课练答案 2026年课课练江苏七年级英语下册译林版 第74页解析答案
A
People throw rubbish on the beach and even into the ocean. The rubbish has become the "home" of hermit crabs (寄居蟹). Believe it or not, it is happening all over the world. Scientists have seen hermit crabs using bottle tops, parts of old light bulbs (灯泡), and even broken glass bottles.
Different from other crabs, hermit crabs have soft bodies, so they need to look for shells for protection. They first look at the shells' type, size, and colour. Then, they use their legs to check the inside of the shells to make sure they are the right size. As they grow, they give up their old shells and find bigger ones to live in.
However, "rubbish shells" can bring danger to hermit crabs. Plastic rubbish is often brighter in colour than shells. It might stand out against the background, so predators (捕食者) can find hermit crabs more easily. Also, the crabs may not get out and then die when they go into plastic bottles or old tires (轮胎).
(
) 21. What has become a problem according to paragraph 1?
A. There are more hermit crabs than ever.
B. Hermit crabs are using rubbish as homes.
C. People cannot leave rubbish on the beach.
D. Scientists have a problem finding hermit crabs.
(
) 22. According to the passage, the underlined word "protection" in paragraph 2 means "
" in Chinese.
A. 抵抗
B. 保护
C. 觅食
D. 爬行
(
) 23. How do hermit crabs check the inside size of a shell?
A. They use their legs.
B. They use their eyes to see.
C. They check by the smell.
D. They check by the nearby water flow.
(
) 24. Why might the writer write this article?
A. To tell interesting stories about hermit crabs.
B. To show the rubbish problem for hermit crabs.
C. To show the importance of having hermit crabs.
D. To have people make new homes for hermit crabs.
(
) 25. Where can we probably read this passage?
A. In a storybook.
B. In a travel book.
C. In a fashion magazine.
D. In a newspaper.
答案:21. B
22. B
23. A
24. B
25. D
解析:
21. 本题可根据第一段内容解答,第一段表明全球多地出现寄居蟹将瓶盖、旧灯泡部件等垃圾当作居所的情况,这是文中提出的问题,选项B符合文意。
22. 定位到第二段,由“hermit crabs have soft bodies, so they need to look for shells”可知,寄居蟹身体柔软,需要外壳来保护自己,因此划线词“protection”的中文意思是“保护”,对应选项B。
23. 根据第二段中“Then, they use their legs to check the inside of the shells to make sure they are the right size.”可知,寄居蟹用腿来检查壳的内部大小,选项A正确。
24. 文章先介绍寄居蟹使用垃圾作为居所的现象,接着阐述这类“垃圾壳”给寄居蟹带来的捕食风险、被困致死等危险,作者写作本文是为了展示寄居蟹面临的垃圾问题,对应选项B。
25. 本文是关于人类垃圾影响寄居蟹生存的科普性文章,这类内容大概率会出现在报纸上;故事书以虚构故事为主,旅行书围绕旅行内容展开,时尚杂志聚焦时尚相关话题,均不符合本文定位,故选项D正确。
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