【文章內(nèi)容簡介】 statement is TRUE? A. The writer plans to head out to the Mission Bay next Sunday for a beach piic. B. You should finish the homework before leaving for the piic. C. You can buy and share food and drinks on the farm D. The driving time is less than one and a half hour C Our factories and homes burn coal and oil. Every year we have forest fires somewhere. Many scientists believe that the weather is changing. The earth will perhaps be warmed by about 7℃ at the South Pole(極 ) and the North Pole. The ice will be melt(融化 ). The sea level(平面 ) will rise by about 7 meters. As a result, water will cover cities like London, Tokyo and New York. Some ports(港口 ) and towns along the coasts will disappear under water. Some other scientists think that the dust, smoke and pollution from coal, wood and oil fires will block out(封閉 ) the ultraviolet rays(紫外線 ). Then the earth will bee colder and great sheets of ice will cover Europe and North America. When chemicals in the air mix with rain, we have acid(酸 ) rain. Acid rain can bring us great harm. It destroys(破壞 ) forests and kills life in lakes and rivers. People are beginning to see how serious the problem is. They find it important to work with nature instead of against it. They are trying to save the earth in many different ways. But one of the most important things to do is to make people understand that saving the earth is saving ourselves. do our factories and homes do? burn coal and oil. B. They cut down the trees. B. They burn down forests. D. They have acid rain. 39. Some scientists believe that . A. the earth is growing warmer B. we have to burn down the forests every year C. we can find oil in our forests D. we need coal in our forests 40. Ice at the poles will if the earth gets warmer. A. bee thicker by seven meters B. cover cities like London and Tokyo C. raise the sea level by 7 degrees D. bee water and make the sea rise 41. What can we learn from the third paragraph? A. The dust together with pollution from coal, wood and oil fires will bring us more heat from the sun. B. The ultraviolet rays will e more because of the dust and pollution from fires. C. According to the scientists, the change in weather hardly has anything to do with the pollution. D. As a result of the dust and pollution from coal, wood and oil fires, the earth will bee colder. D The government in China plans to end its onechild policy(政策 ) and let families have two children instead. The plan was given on Thursday after political meetings in Beijing. There are a number of reasons for the change in policy. The change is meant to balance population development, stop a falling birth rate （率） and strengthen（增強(qiáng)） the country’s labor(勞動(dòng)力 ) force. China, with the largest population in the world, started the onechild policy in 1980. But the government allowed only a small number of couples to have two children. For example, some families in the countryside could have two children, if the firstborn child is a girl. In 2020, the Chinese government gave other couples a chance to have two children if one of them was an only child. Jiang Quanbao, a teacher and population expert, explained how Chinese families react（反應(yīng)） to the newest policy. “Too many young people in the cities are no longer interested in having a second child,” he said. “People in the countryside are more interested. But some of them are already allowed to have two children. ” At the end of 2020, China had billion people. A total of 800 million of them have jobs. But the labor market population will drop in 35 years. That is to say, the country will be in great need of labor by the year 2050. With the twochild policy, an increase in births can solve this problem. Boys and girls, what do you think of the twochild policy? Do you want to have a newborn brother or a sister? 42． Why does the government plan to end the onechild policy? A. Because we need a larger population. B. Because millions of people have jobs. C. Bec