阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
What on earth does happiness mean? I can’t give you its exact definition, but I’m sure if you love and help 【小题1】        , you’ll get it.
I’ll never forget an old lady. She lives in 【小题2】    small house alone. It is said that her husband and her son 【小题3】   （die）in a road accident years ago. Her life is bitter, but she often helps others 【小题4】    a smile. Whenever it snows, she is always the first to clean the paths. She looks after several children living nearby. I am one of them. I often remember the stories she told us and her kind smile. Perhaps she is unlucky, but I think she is a happy person. Her life is full of【小题5】   （laugh）and love.
But I’m sad to see some people getting their happiness in bad ways. They talk 【小题6】  （noisy）in cinemas and meeting rooms; they destroy trees to enjoy themselves and they laugh at others’ shortcomings. Perhaps they feel happy at that time,  【小题7】  they will never get true happiness because they 【小题8】   （lose）their personality already.
Now I know what happiness is.  【小题9】  means kindness, love and unselfishness. Above all, I have come to understand that【小题10】   （bring）happiness to others is getting ourselves happiness.

What on earth does happiness mean? I can’t give you its exact definition, but I’m sure if you love and help 16.        , you’ll get it.
I’ll never forget an old lady. She lives in 17.      small house alone. It is said that her husband and her son 18.    （die）in a road accident years ago. Her life is bitter, but she often helps others 19 .    a smile. Whenever it snows, she is always the first to clean the paths. She looks after several children living nearby. I am one of them. I often remember the stories she told us and her kind smile. Perhaps she is unlucky, but I think she is a happy person. Her life is full of 20.     （laugh）and love.
But I’m sad to see some people getting their happiness in bad ways. They talk 21.    （noisy）in cinemas and meeting rooms; they destroy trees to enjoy themselves and they laugh at others’ shortcomings. Perhaps they feel happy at that time, 22.       they will never get true happiness because they 23.      （lose）their personality already.
Now I know what happiness is. 24.     means kindness, love and unselfishness. Above all, I have come to understand that 25.      （bring）happiness to others is getting ourselves happiness.

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.

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

2.Snow protects plants and wild animals from cold weather by _____.

A．supplying much more air                  B．limiting heat movement

C．absorbing strong winds                   D．sending back sound waves

3.Snow can be deadly mainly because it can _____.

A．cause road accidents

B．make people stuck in winter storms

C．lead to heart attacks

D．make people victims of snowstorms

4.What will the text probably tell us following the last paragraph? _.

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

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 _____.

—It snows a lot this winter. My room often gets very cold at night.

—_______.

　 A. So is mine B. So does mine C. So mine is D. So mine does