Question

【題目】 Sea urchins(海膽) are small creatures , but what’s really remarkable about them is that they eat anything that happens to float by. They have really sharp teeth they use to rid rocks of algae(海藻)which makes them pretty valuable especially in places like Hawaii where algae are threatening the coral reefs. In the summer of 2019, 500,000 of them were used to deal with the algae.

The problem started when non-native algae were introduced to the ecosystem of Kaneohe Bay in the 1970s. Because they had no enemies, they ended up taking over the bay, according to the National Marine Fisheries Service (NMFS). The algae blocked sunlight from reaching the coral, which in turn affected the local fish because they changed the chemistry of the water.

That’s when the NMFS turned to sea urchins that loved to devour the algae. But they had to grow to the size of a cherry tomato before they could be used. Since 2011, sea urchins have been grown and used to handle the algae problem. Some of the funds are available due to an unfortunate incident. In 2005, a ship was grounded on a shallow reef near Kaneohe Bay. When the ship was removed, 20 acres of reefs have been damaged. When there is environmental damage, the NMFS and other agencies receive funds from the wrongdoers and the funds are used to restore the damage. Some funds were spent on other projects like the sea urchins. The state of Hawaii began to grow the sea urchins. When they are large enough, divers carefully place them on the reef.

Algae isn’t the only thing that threatens the coral reefs. Climate change and the effects of fishing and tourism in the area also endanger the coral reefs. But turning to sea urchins instead of man-made solutions seems like the best way to go.

【1】Why are sea urchins regarded as outstanding creatures?

A.They are tiny but have teeth.

B.They can keep the ocean clean.

C.They can remove harmful algae.

D.They grow on coral reefs with algae.

【2】What happened after non-native algae arrived at Kaneohe Bay?

A.They helped the coral reefs to survive.

B.They spread to every corner of the bay.

C.They didn't fit in with the new surroundings.

D.They fought against other species to get food.

【3】Which word can replace the underlined word “devour” in paragraph 3?

A.EatB.Block

C.AttackD.Attract

【4】What does the author suggest doing to save coral reefs?

A.Banning fishing and tourism.B.Relying on humans’ solutions.

C.Employing divers to handle algae.D.Letting nature take care of nature.

Answer 1

【答案】

【1】C

【2】B

【3】A

【4】D

【解析】

這是一篇說明文。文章介紹了海膽。海膽之所以被認為是杰出的生物是因為它們可以清除有害藻類。藻類并不是唯一威脅珊瑚礁的東西。氣候變化以及該地區(qū)漁業(yè)和旅游業(yè)的影響也威脅著珊瑚礁。但是用海膽代替人工解決方案似乎是最好的選擇。

【1】

細節(jié)理解題。根據(jù)第一段中They have really sharp teeth they use to rid rocks of algae(海藻)which makes them pretty valuable especially in places like Hawaii where algae are threatening the coral reefs.“它們有鋒利的牙齒用來清除巖石上的藻類，這使它們非常珍貴，尤其是在夏威夷這樣的地方，那里的藻類正在威脅珊瑚礁。”由此可知，海膽之所以被認為是杰出的生物是因為它們可以清除有害藻類。故選C。

【2】

推理判斷題。根據(jù)第二段中The problem started when non-native algae were introduced to the ecosystem of Kaneohe Bay in the 1970s. Because they had no enemies, they ended up taking over the bay,“這一問題始于20世紀(jì)70年代非本地藻類被引入卡內(nèi)奧河灣的生態(tài)系統(tǒng)。因為它們沒有敵人，它們最終占領(lǐng)了海灣，”由此可知，非本地藻類到達卡內(nèi)奧河灣后，它們散布到海灣的每一個角落。故選B。

【3】

詞義猜測題。根據(jù)第三段第二句But they had to grow to the size of a cherry tomato before they could be used.“但它們必須長到櫻桃番茄的大小才能被使用。”可知，sea urchins that loved to devour the algae“海膽喜歡吃海藻”。由此推知劃線詞的意思是“吃”。故選A。

【4】

推理判斷題。根據(jù)最后一段Algae isn’t the only thing that threatens the coral reefs. Climate change and the effects of fishing and tourism in the area also endanger the coral reefs. But turning to sea urchins instead of man-made solutions seems like the best way to go.“藻類并不是唯一威脅珊瑚礁的東西。氣候變化以及該地區(qū)漁業(yè)和旅游業(yè)的影響也威脅著珊瑚礁。但是用海膽代替人工解決方案似乎是最好的選擇。”由此可知，作者建議讓大自然照顧大自然來拯救珊瑚礁。故選D。