For example, one evening when it was so warm, I stayed awake {#blank#}1{#/blank#} until half past eleven {#blank#}2{#/blank#} have a good look at the moon by myself. But as the moon gave far too much light, I didn't dare open a window. Another time five months ago, I happened to be upstairs{#blank#}3{#/blank#} when the window was open. I didn't go downstairs until the window had to be shut. The dark, rainy evening, the wind, the {#blank#}4{#/blank#} clouds held me {#blank#}5{#/blank#} in their {#blank#}6{#/blank#}; it was the first time in a year and a half that I had seen the night{#blank#}7{#/blank#}.

    The Chinese language is one of the{#blank#}1{#/blank#}（old）written languages in the world. It {#blank#}2{#/blank#}（speak）by the Han majority and many other ethnic groups in China. Nearly 1.3 billion people speak some form of Chinese as their first language.

    The{#blank#}3{#/blank#}（vary）of Chinese are usually described by native speakers as dialects of a single Chinese language，but linguists（语言学家）note that they are as diverse as a language family. There are between 7 and 13 main regional groups of Chinese, of{#blank#}4{#/blank#}the most spoken by far is Mandarin（普通话），{#blank#}5{#/blank#}（follow）by Wu, Min, Yue, etc. Standard Chinese is a standardized form of spoken Chinese based on the Beijing dialect of Mandarin. It is{#blank#}6{#/blank#}official language of China, and also one of the six official languages of the United Nations.

    {#blank#}7{#/blank#}many Chinese dialects exist，the written language is still a very common form of communication. If we go to{#blank#}8{#/blank#}（differ）provinces, we may not be able {#blank#}9{#/blank#}（communicate）with the local people orally. However, we can understand each other in writing. The written language can be further divided{#blank#}10{#/blank#}different forms, like simplified Chinese and traditional Chinese. There is also a form called "pinyin", which is the Chinese language with a Roman spelling.

    With the {#blank#}1{#/blank#}(develop) of industry, air pollution is getting more and more serious. In Beijing, many people suffer different kinds of illnesses because {#blank#}2{#/blank#} air pollution.

    Air pollution is caused by the following {#blank#}3{#/blank#} (reason): about half of the problem is caused by vehicles. There are more and more cars, buses on the roads, and they give off {#blank#}4{#/blank#} (harm) gases.25% of air pollution is caused by factories. Another factor is the smokers. Smoking not only does harm to their health {#blank#}5{#/blank#}to others. {#blank#}6{#/blank#} (beside) these, about 10% of air pollution is caused by other reasons.

    We should take some measures to fight {#blank#}7{#/blank#} pollution. New fuel can be used to take {#blank#}8{#/blank#} place of gas. We can plant more trees. If everybody realizes the {#blank#}9{#/blank#} (important) of the environment and does something to stop pollution, the problem will {#blank#}10{#/blank#} (solve).

    In the past a gentleman would offer his seat {#blank#}1{#/blank#} a lady on a crowded bus.  But now, he will probably look out of the window or hide behind his newspaper, {#blank#}2{#/blank#}(leave) the lady standing {#blank#}3{#/blank#} someone else gets off.  You can't entirely blame men for this change in manners. {#blank#}4{#/blank#}(go) are the days when women could be referred to the weak. A whole generation has grown up demanding {#blank#}5{#/blank#}(equal) with men in jobs, in education and in social life.  Hold a door for some women {#blank#}6{#/blank#} you are likely to get {#blank#}7{#/blank#} angry lecture on treating women {#blank#}8{#/blank#} weaklings.  Take a girl out for a meal and she'll probably insist on paying {#blank#}9{#/blank#} share of the bill.  All these, according to some sociologists, will change men's attitude towards women and the conventional active politeness is perhaps slowly being {#blank#}10{#/blank#}(replace) by true consideration for the needs and feeling of women, so that men can see women as equal human beings.