Question

【题目】What do you usually do when a flying insect lands on your arm? You may blow it away. But what if that insect is a ladybug (瓢虫)? It is possible that you would let it stay. What is it about ladybugs that we like?

Farmers once thought ladybugs were a good lucky sign. A ladybug in the field meant the crops would be successful and that the weather would be good. The farmers may have thought too highly of such a small bug, but in fact ladybugs do help out with the crops. They eat harmful insects.

Actually, it is not the adult ladybug that eats other insects. It’s the baby ladybug. When the baby ladybugs hatch (孵化), they are very hungry and will eat mites, aphids, mealy bugs, green flies, and other crop-destroyers. In the 1800s, ladybugs were brought all the way from Australia to California and set free among orange trees that were dying from being eaten by insects. They completely saved all the trees.

Ladybugs go about their daily business without worrying much about anything. Very few birds or insects will eat a ladybug because it gives off a dangerous fluid (液体). Ladybugs also protect themselves by playing dead. They fall off leaves and never move until their attacker goes away.

So the next time you see a ladybug, think about what it may be doing. Maybe it is off to save an orange tree. Maybe its next move will be to roll off a leaf and play dead orstand up toa bird about 100 times its size. Maybe it’s letting you know that the weather will be good tomorrow. Who knows? Ladybugs are special that way.

【1】Ladybugs were brought from Australia to California in the 1800s to .

A. add more ladybugs to area B. report the weather for farmers

C. act as a lucky sign of good crops D. save orange trees by eating insects

【2】From the passage we know that .

A. it’s the adult ladybug that eats most of the harmful insects

B. ladybugs often roll off a leaf and play dead to attack the birds

C. ladybugs can give off a dangerous fluid to protect themselves

D. the baby ladybug mainly eats mites, aphids, mealy bugs, and oranges

【3】The underlined phrase “stand up to” most probably means .

A. watch B. support C. save D. fight

【4】Which of the following may the author agree with?

A. Ladybugs do harm to nature. B. Ladybugs are unusual insects.

C. Ladybugs are dangerous insects. D. Ladybugs eat more than they should.

Answer 1

【答案】

【1】D

【2】C

【3】D

【4】B

【解析】本文是一篇说明文，主要介绍了瓢虫对人类的益处以及它们是通过什么方式保护自己的。

【1】细节理解题。由文中 In the 1800s, ladybugs were brought all the way from Australia to California and set free among orange trees that were dying from being eaten by insects. They completely saved all the trees.可知，在1800年，瓢虫从澳大利亚到加利福尼亚是通过吃掉危害橘树的昆虫，来拯救它们，故D选项正确。

【2】细节理解题。由Very few birds or insects will eat a ladybug because it gives off a dangerous fluid .可知，很少有鸟或昆虫会吃瓢虫，因为它会释放一种有毒的液体。A选项不是the adult ladybug，是baby ladybug。B选项不是瓢虫经常装死去袭击鸟，而是装死直到它们的袭击者离开，注意细节。D选项没有oranges，故C选项正确。

【3】词义推断题。A选项“看”B选项“支持”C选项“拯救”D选项“斗争”。由文中可知，或许它下一次的移动是卷在树叶里然后装死或者对比它大100倍的鸟怎么样，可以推断应该是与它大100倍的鸟斗争，选fight, 故D选项正确。

【4】细节理解题。由最后一段中Who knows? Ladybugs are special that way.可知，瓢虫是一种很特别的昆虫，也就是unusual，不寻常的昆虫，故B选项正确。