题目内容
Some wild animals,______ tigers and pandas,are in danger of dying out.
A. such as B. as such C. like such D. as
A
such as...用来列举部分事物。通常放在被列举事物的前面以及需要说明的事物的后面,意思是“比如;诸如……之类的”,可与like互换,as后面不能有逗号。从后面的tigers and pandas可知,这里表示部分列举,故选A项。
Snow falls in the Earth’s extreme North and South throughout the year. However, the heaviest snowfalls have been reported in the mountains of other areas during winter. Snow is even known to fall near the Equator (赤道),but only on the highest mountains.
Snow contains much less water than rain, but much of the water the world uses comes from snow. Melting snow provides water for rivers, electric power stations and agricultural crops. In the western United States, mountain snow provides up to seventy-five percent of all surface water supplies.
Snowfall helps to protect plants and some wild animals from winter weather. Fresh snow is made largely of air trapped among the snow crystals (晶体). Because the air has trouble moving, the movement of heat is limited. Snow also influences the movement of sound waves. The surface of the snow takes in, or absorbs, sound waves. As snow grows older or if there have been strong winds, it can become hard and flat. Then, the snow,s surface will help to send back sound waves.
Snow may be beautiful, but it can be deadly. It is responsible for the deaths of hundreds of people. Many people die in traffic accidents on roads covered with snow and ice or from being seriously stuck in the winter storm. Others die from heart attacks caused by too much physical activity out in the cold.
People may not be able to avoid living in areas where it snows often. However, they can avoid becoming victims of snowstorms. People should stop driving and stay at home until the storm has passed. People living in these areas should carry emergency supplies in their vehicle. These include food,emergency medical supplies,and extra clothing to stay warm and dry.
【小题1】Mountain snowfall _____.
A.is heavier than that in the South and the North Poles |
B.has never occurred near the Equator of the earth |
C.brings less of the water the world uses than rain does |
D.provides up to seventy—five percent of water supplies worldwide |
A.supplying much more air | B.limiting heat movement |
C.absorbing strong winds | D.sending back sound waves |
A.cause road accidents |
B.make people stuck in winter storms |
C.lead to heart attacks |
D.make people victims of snowstorms |
A.How to drive during snowstorms |
B.Where we can get emergency supplies |
C.How to prevent heart attacks out in cold |
D.Why we should stay warm and dry in winter |