Question

【題目】 The United States has more tornadoes (龍卷風(fēng)) than any other country in the world. In a normal year there are 800 to 1,000 tornadoes. Most happen in the middle part of the country. Tornadoes form when warm and cool air meet. In the Midwest, the warm air from the Gulf of Mexico often meets the cold air fromCanada.

The usual tornado season is March through May. Tornadoes form most often in the afternoon and early evening. There is often no warning of a tornado. People who live in the Midwest know the signs (征兆) of tornado activity. The sky becomes dark, often a greenish color. Dark clouds appear in the sky and there is often large hail (冰雹). Suddenly, there is a loud sound, like a train or a jet plane. Sometimes, two, three, five, ten or more tornadoes can form over a large area.

This type of tornado activity hitOklahomaandKansasin May 1999. The day was stormy, with heavy thunderstorms in the afternoon. As the storms continued, tornadoes began to form. Dozens of tornadoes hit towns and neighborhoods inOklahoma, then inKansas. Some stayed on the ground for several hours, destroying everything they touched. The tornadoes killed 43 people and injured 600 others. They destroyed thousands of homes and businesses. In some areas, not one home stood. In other areas, the tornadoes destroyed every home on the left side of the street, but didn't touch any homes on the right side. The tornadoes lifted people and cars into the air and then threw them back down to earth. So it is important to know where to hide and how to protect yourself in the face of a tornado.

【1】What can we learn about tornadoes inAmerica?

A.There are more tornadoes in the Eastern States.

B.They usually happen in the summer.

C.They may appear in groups.

D.There are more than 1,000 tornadoes every year.

【2】The tornadoes that hitOklahomaandKansasin May 1999 _____.

A.took place at the same time

B.brought death and serious damage

C.came and went quickly

D.were the biggest in history

【3】What will the author most probably talk about next?

A.Tornado dangers and warning signs.

B.How a tornado forms.

C.Different kinds of tornadoes.

D.How to stay safe during a tornado.

Answer 1

【答案】

【1】C

【2】B

【3】D

【解析】

這是一篇說明文。文章主要介紹了美國的龍卷風(fēng)，美國比世界上其他國家有更多的龍卷風(fēng)，在正常年份，有800到1000次龍卷風(fēng)，大部分發(fā)生在這個國家的中部，還介紹了1999年發(fā)生的一次龍卷帶來的危害。

【1】細(xì)節(jié)理解題。根據(jù)第二段中Sometimes, two, three, five, ten or more tornadoes can form over a large area. 有時，2個、3個、5個、10個或更多的龍卷風(fēng)會在大片地區(qū)形成�？芍�，這些龍卷風(fēng)可能會成群出現(xiàn)。故選C項。

【2】細(xì)節(jié)理解題。根據(jù)第二段中...destroying everything they touched. The tornadoes killed 43 people and injured 600 others. They destroyed thousands of homes and businesses. In some areas, not one home stood. In other areas, the tornadoes destroyed every home on the left side of the street摧毀他們接觸到的一切。龍卷風(fēng)造成43人死亡，600人受傷。他們摧毀了成千上萬的房屋和企業(yè)。在一些地區(qū)，沒有一個家。在其他地區(qū)，龍卷風(fēng)摧毀了街道左側(cè)的每家每戶�？芍�，發(fā)生在1999年的龍卷風(fēng)帶來了人員的傷亡，并毀滅了許多家園。故選B項。

【3】推理判斷題。根據(jù)最后一段最后一句話So it is important to know where to hide and how to protect yourself in the face of a tornado.所以知道在龍卷風(fēng)面前藏在哪里以及如何保護(hù)自己是很重要的�？芍�，接下來作者應(yīng)談?wù)撊绾卧邶埦盹L(fēng)中進(jìn)行自我保護(hù)。故選D項。