Question

Sharks (鯊魚) are the most frightening animals in the sea. Sometimes we can see sharks swimming in the sea around Hong Kong. People put nets around some beaches to protect swimmers. When there is a "shark's flag", people must slay on the beach. It will be too late if a shark can swim sixty kilometers an hour to you.

There are 30 kinds of sharks and 25 kinds of them are dangerous. The whale sharks are very big. They can grow to 18 meters long, but they are not dangerous to people. The jaws (大白鯊) and the tiger sharks are the most dangerous kinds of sharks.

Do you know all sharks must keep swimming, or they will go down? All sharks can feel everything that happens around them. We must keep calm and don't make any noise when a shark is swimming near you.

If a shark loses a tooth, a new one will grow out very quickly. So sharks always have many sharp teeth.

1. Why do people put nets around some beaches?

A. To keep swimmers running.

B. To keep swimmers swimming.

C. To keep swimmers safe.

D. To keep sharks swimming.

2. _________ of sharks are dangerous in all kinds of sharks.

A. Less than 80% B. More than 80%

C. More than 90% D. Less than 20%

3.What are the most dangerous kinds of sharks?

A. The jaws and the tiger sharks.

B. The whale sharks and the tiger sharks.

C. The jaws and the whale sharks.

D. The whale sharks and the blue sharks.

4. What does the underlined word mean in Chinese?

A. 安靜 B. 吵鬧 C. 沉默 D. 任性

5.Which is NOT true according to the passage?

A. It will be late if a shark can swim sixty kilometers an hour to you.

B. There are 30 kinds of sharks in the sea.

C. All sharks must keep swimming to go down in the sea.

D. Sharks's teeth can grow out very quickly.

Answer 1

1.C

2.B

3.A

4.A

5.C

【解析】試題分析：這是一篇介紹鯊魚生活習性及特點的科普文。文章說到了鯊魚的種類，危害性，生活習性等特點。

1.小題1】細節(jié)理解題。People put nets around some beaches to protect swimmers.句意：人們在部分海灘圍上網(wǎng)去保護游泳的人。由此句可知答案選C，圍網(wǎng)的目的是保護游泳者的安全。

2.小題2】推理判斷題。There are 30 kinds of sharks and 25 kinds of them are dangerous.句意：有30種鯊魚，25種是危險的。由這個數(shù)據(jù)可以推算出危險鯊魚占鯊魚總數(shù)的比例超過80%，因此答案選C

3.小題3】細節(jié)理解題。The jaws (大白鯊) and the tiger sharks are the most dangerous kinds of sharks.句意：大白鯊和虎鯊是鯊魚中最危險的種類。由這句可知答案選A

4.小題4】詞意猜測題。We must keep calm and don't make any noise when a shark is swimming near you.

句意：當鯊魚游近你的時候，我們必須保持鎮(zhèn)靜，并且不能發(fā)出任何響聲。由后半句可知，鯊魚對周圍聲音很敏感，不能發(fā)出任何響聲才不會被它發(fā)現(xiàn)，由此推斷劃線單詞應該是與安靜有關的意思。分析四個選項，BD首先排除，而沉默多指不說話，不發(fā)言，而不是不發(fā)出任何聲音的意思，因此排除C項，選A

5.小題5】細節(jié)理解題。It will be too late if a shark can swim sixty kilometers an hour to you.句意：如果鯊魚向你以每小時60公里的速度游來時，你逃生將是太晚了。故A項正確，排除。There are 30 kinds of sharks ……句意：有30種鯊魚……由此句可知B項正確，排除。Do you know all sharks must keep swimming, or they will go down?句意：你知道所有的鯊魚必須一直游泳，否則他們會沉下去嗎？由此句可知C項錯誤。If a shark loses a tooth, a new one will grow out very quickly.句意：如果鯊魚掉了一顆牙，一顆新牙將會很快長出來。由此句可知D項正確。因此答案選C

考點：科普類說明文