11Population problem may be one of the greatest challenges we are facing today .Now there are over six billion people on the earth. Each day, about 400,000 babies are born around the world. On the same day, about 140,000 people die. As it goes on, every year there are 95 more people on the earth. Most of the growth is taking place in Africa and parts of South and West Asia that can hardly afford more people. However , population increases have slowed or even stopped in Europe , North America and Japan. By 1960, about 70 percent 百分比 of the worlds people lived in developing countries .Today it is 80 percent, （8）and 95 percent of the worlds population growth is taking place in the developing countries. Asia has more than doubled its population since 1960. （9） China is the country with the largest population in the world. Since the 1960, the population in China has doubled. Too many people cause too many problems.Since China carried out the one-child policy, the population increase rate 率 had dropped, but much still needs doing. 根据所给词的首字母和英语释义补全单词，使句子意义完整、正确 6.s_ _ _ not different 7.i_ _ _ _ _ _ _grow in number, size- 写出划线句子的同义句 8. 95 percent of the worlds population growth is taking place in the _ developed countries. 9.China has the _ people in the world. 10.简略回答下面问题 How many more people are there in the world today than there were yesterday? _. 2 As the worlds population is growing faster and faster, pollution problem is becoming more and more serious. Air pollution is one of these pollutions which troubles people a lot. It is caused by the growing factories, heavier traffic, home cooking and heating and so on . Smog causes too many problems. Many people get ill and some even die from it.(8)London had the worst experiences with smog. The worst fog in London in 1892 killed about 1000 people. Many other big cities also have or once had this problem .The city with the worst air pollution is Mexico City, which has the largest population. Los Angeles once had this problem. The air pollution in Beijing is very serious. Sometimes people cant see blue sky even when the weather is fine. People complain a lot about it. The government is trying its best to improve it. Factories were told to control their smoke . More public transportation has been provided. More underground lines have been built. (9)People use natural gas instead of coal, use electricity for heating , try to drive cleaner or try car pool. More and more people realize how important it is to solve the air problem. 根据所给英语写出单词 6.i_ _ _ _ _ _ get better 7.t_ _ _ _ _ _ _ _ _ _ _ _ _ way of carrying people or things from one place to another 写出划线句子的同义句 8.The worst smog once _ in London. 9.Natural gas _ the place of coal. 10.简略回答下面问题2Which city has the worst experiences with smog? _.3Different countries have different languages. Among the 5000 languages , English is the most widely used .(8)Whatever countries you go to, you can speak English. English is used in sport and science ,business, transportation and other fields. Its so useful to learn English that English is taught as the first foreign languages in many countries. China is one of them. Especially after the successful bid of the 2008 Olympic Games, Chinese pay more attention to the English education . Even some old people begin to learn English. (9)Chinese isnt so widely spoken as English, but it is spoken by the largest number of people , including Chinese inside China and outside China. As more and more Chinese people go abroad, the number of speakers is becoming larger. Both Chinese and English are the official languages in the UN. The other four are Arabic , French, Russian and Spanish. All these languages are widely spoken by people in different continents. 根据所给英语写出单词 6.o_ _ _ _ _ _ _ of the government 7. c_ _ _ _ _ _ _ _ one of the 7 great land masses of the world 写出划线句子的同义句 8 You can speak English in _ the countries. 9. Chinese is spoken _ widely than English. 10.简略回答下面问题 Are there more and more people learning Chinese? _.4Thomas Edison was a famous American inventor. During his lifetime he had made 1093 inventions. That is amazing, isnt it? Many of his inventions have changed our life. You may ask why Edison was able to make so many inventions. That is because he was the man who never gave up. He always thought that no matter how difficult something seemed, he could find the answer. He believed that nothing was difficult if you put your heart into it. That is true. When he was a child, he was always asking strange questions and trying out new ideas. Many of his questions made his teacher unhappy or angry,(8) because the questions had nothing to do with his lessons. He could not study at school, so his mother taught him at home.(9) He showed great interest in science and le