单选题
People who are hit by lightning and survive often have long-term effects. These may include memory loss, sleep disorders, muscle pain and depression. Expels tell people to seek the safety of a building or a hard-top vehicle(运输工具)anytime they hear thunder, even if it is not raining. They say lightning can strike as far as sixteen kilometers from any rainfall. Lightning can travel sideways. And at least ten percent of lightning happens without any clouds overhead that you can see. People who are outdoors should make sure they are not the tallest thing around. Bend low to the ground, but do not lie down. And do not stand near a tree or any tall subject. Get away from water and anything made of metal. A car is safe, but do not touch any metal inside. Safety experts say people in buildings should stay away from anything with wires or pipes that lead to the outside. The National Weather Service says if you plan to disconnect any electronic equipment, do so before the storm arrives. Do not use a wired telephone. Do not use water. All these can carry electricity. Some people think a person struck by lightning carries an electrical charge(电荷) afterward. Experts say this is not true. It is safe to begin emergency treatment. Each year about four hundred people in the United States are struck by lightning. Last year forty four people died. The average is close to seventy. The National Weather Service says that is more than the number of people killed by severe storms.
单选题
According to the passage, which of the following is NOT true? A) Lightning can happen even if there is no cloud. B) Lightning won't do harm to people's health. C) Lightning can travel sideways. D) Lightning can strike very far.
【正确答案】
B
【答案解析】[解析] 判断正误题。B选项明显与文中首段第一句People who are hit by lightning and Survive often have long-term effects. 不符, 故选B。
单选题
The underlined word “disconnect”(Para. 4)refers to“ ______ ”. A) cut out B) interrupt C) cut off D) disturb
【正确答案】
C
【答案解析】[解析] 词义题。第四段第一、二两句说的是一个意思。第一句提到…should stay away from anything with wires or pipes that lead to the outside. 其中stay away意为“远离”, 与disconnect同义, cut off意为“迅速远离, 切断“, 故选C。
单选题
Which of the following mustn't you do in order to seek lightning safety? A) Hide in a building. B) Sit in a ear. C) Bend low to the ground. D) Lie under a tall tree.
【正确答案】
D
【答案解析】[解析] 判断正误。根据第三段第三句And do not stand near a tree or any tall subject. 可知, 雷电来时不能站在树下, 故选D。
单选题
Which of the following object do not carry electricity? A) Wired telephone. B) Water. C) Pipes that lead to the outside. D) Person struck by lightning.
【正确答案】
D
【答案解析】[解析] 细节题。在文章的第四段我们可以找到A、B、C二三个选项的内容。根据第五段第一句Some people think a person struck by lightning carries an electrical charge afterward. Experts say this is not true. 可知, 被雷电触击后的人是不带电的, 故选D。
单选题
Which of the following is the main idea of the passage? A) The latest information about lightning. B) Some common knowledge about lightning safety. C) How lightning comes into being. D) Where we should hide in case of lightning.