Question

【题目】 It might seem impossible that tiny insects could be very harmful to a large house. But wood-eating termites（白蚁） can indeed do a lot of harm to a house.

Scientists believe that termites have been around for about 50 million years. Today, there are nearly 3,000 kinds of termites. They can be found all over the world.

A termite’s diet is mainly made of the fiber（纤维素） found in plants. Many termites feed on trees and wood in wooded areas. However, they don’t know the difference between the wood in a forest and the wood used to build houses. If they find wood inside a house, they will happily eat it.

It would take a single termite over 3,000 years to eat up the wood in a small house. Unluckily, termites are social insects. They live in groups. A termite group could be made up of 15 million termites or more. They eat day and night. Large termite groups can eat as much as one pound of wood in a day.

Termites can be hard to discover. Often, they’re found only after big damage has been done to a house, especially in May every year.

【1】From the passage, we know that termites_____________ .

A.are tiny and harmful birdsB.are used to build houses

C.can be seen only in ChinaD.are good at eating wood

【2】The fourth paragraph mainly tells us_____________ .

A.what termites like to eatB.where termites can be found

C.how termites are harmful to a houseD.how many termites a termite group has

【3】What’s the best title for the passage?

A.Silent EnemiesB.A Single Insect

C.Ways to Find TermitesD.Advice on Killing Termites

Answer 1

【答案】

【1】D

【2】C

【3】A

【解析】

文章大意：本文主要记叙了白蚁的生存历史，现有种类，日常饮食和对人类的危害。小白蚁，大危害。

【1】细节理解题。根据文章中. Large termite groups can eat as much as one pound of wood in a day.大的白蚁群体一天可以吃一磅的木材可知。故答案为D。

【2】主旨大意题。文章第四段的大意是群体生活的白蚁是怎样危害房子的。故答案为C。

【3】主旨大意题。本文主要记叙了白蚁的生存历史，现有种类，日常饮食和对人类的危害。小白蚁，大危害。故答案为A。