重庆市20xx-20xx学年高一英语上学期期中试题内容摘要:
e. Police said that Tamir had an air gun that looked real, according to CNN. To help with the distrust between police and minority munities (少数民族社区 ), President Obama said that he would ask Congress for $263 million to buy 50, 000 bodyworn cameras for police to record themselves, and improve training to make sure law is obeyed. “For the people who just feel pained because they get a sense that some munities aren’t treated fairly — I understand that, and I want to work with you, and I want to move forward with you,” Obama said on Dec 2. 28. Which of the following differences between black and white Americans isn’t mentioned in the text? A. ine B. welfare C. education D. jobs 29. We can learn from the text that ______. A. only black Americans care about the shooting B. the case is not about a man but about legal segregation. C. if Brown had been white, the same thing would not have happened. D. many American Media pay attention to the case 30. President Obama’s attitude towards the case can be described as ______. A. gentle B. caring C. angry D. hesitant 31. We can infer from the text that ______. A. the shooting and the decision shock the United States B. all American policemen are equipped with bodyworn cameras C. all people believe black Americans aren’t treated fairly D. the police, Wilson, will be charged with the shooting D Cooking Kills Four Million People a Year. Polluted airborne particles (大气悬浮颗粒) kill 7 million people a year, reports the World Health Organization. That news may not e as a surprise to anyone who has seen images of chimneys in Beijing, Delhi or Mexico. But those factories— or even the jammed roadways of modern cities— are not the biggest killer. Each year, some million people die earlier than they should because of polluted air inside their homes, says the WHO. What39。 s causing the air inside people’s homes to be so harmful that it kills around 11, 000 people a day? Stoves(火炉 ). “Having an open fire in your kitchen is like burning 400 cigarettes an hour”, says Kirk Smith, a professor at the University of California at Berkeley, whose research suggests that household air pollution from cooking killed between million and 4 million people in 2020. Not all stoves cause this kind of harm. The ones Smith’s talking about are those that the 3 billion people in the developing world use for heat and cooking, which burn solid fuels such as wood, coal, or crop waste instead of gas. The smoke from those fires produces harmful fine particles and carbon monoxide into homes. Poor ventilation then prevents that smoke from escaping, raising fine particle levels 100 times higher than the limits that the WHO considers acceptable. Breathing this air day in day out eventually causes a lot of diseases: more than a third of the million die of a stroke, while a quarter die of heart disease. And around onethird of annual lung disease deaths worldwide result from waste from coal stoves. It is extremely dangerous for the people to spend the most time around the fire— usually women and young children. In fact, the WHO reports that household air pollution almost doubles the risk for childhood lung disease. 32. According to Kirk Smith’s research, ______ . A. some million people die earlier each year than they should B. cooking smoke should be the deadly killer in a household kitchen C. polluted airborne particles kill 7 million people a year D. factories are the biggest killer worldwide nowadays 33. _____ may not cause air pollution according to this passage. A. Wood B. Coal C. Heavy traffic D. Gas 34. The underlined word “ventilation” in Paragraph 4 probably means ______ . A. burning B. breathing C. airing D. heating 35. The author intends to tell people ______. A. to know about household air pollution from cooking B. how to avoid polluted air in their homes C. to stop cooking in the household kitchen D. polluted air is harmful 第二节 (共 5小题,每小题 2分,满分 10 分) 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。 选项中有两项为多余选项。 Some people make you feel fortable when they are around. You spend an hour with them and feel you are already close friends. They are always good talkers. Here are several skills that good talkers have in mon. If you follow the skills, they’ll help you put people at their ease, and make friends with them quickly . 36 . First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a question. One wellknown businesswoman says, “At business lunches, I always。重庆市20xx-20xx学年高一英语上学期期中试题
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① 与 10:00 相比, 14:00 叶绿体合成有机物速率 (填“快”、“慢”或“不变”)原因是。 ② 若通过缓冲液维持密闭容器中 CO2浓度恒定为 300 181。 L/L,与 10:00 相比, 9:00 时 C5的合成速率。 (填“快”、“慢”或“不变”) ③若向密闭容器中加入 18O 标记的 O2, (填“能”或“否”)在青蒿叶肉细胞中检测到放射性的淀粉。 若能,请写出 18O