光山二高高二实验班尖子生周考
英 语 试 题
命题人：张鹏程
说明：1. 本试卷分第I 抟的拼音卷（选择题）和第II卷（非选择题）。满分150分，考试时间100分钟。
2. 将第I 卷的答案代表字母填（涂）在第II卷的答题表（答题卡）中。
第I 卷
酸葡萄第二部分 阅读理解（共两节， 满分40分）
第一节（共15小题；每小题3分，满分45分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
A
Planet Earth would be a scary place for humans if dinosaurs still ruled the world. Though there are still some traces of life from the Jurassic Period, the Age of Dinosaurs ended more than 65 million years ago.
This mass extinction is believed to be the result of an asteroid(小行星) hitting Earth. A new report by the journal 上火的症状有哪些Biological Reviews called “The Extinction of Dinosaurs” concludes that this impact was, indeed, the cau of the dinosaurs’ demi. But the space blast(村支委爆炸) wasn’t the only reason the creatures aren’t still around today.
Dinosaurs need food to survive. Meat-eating monsters like the Tyrannosaurus Rex（霸王龙） were at the top of the food chain, and fed off plant eaters like the horned Triceratops(三角恐龙). The herbivores(食草动物) were decreasing in population after the asteroid hit Earth, which left the meat-eating species less food to survive on. “In any ecosystem where you remove links to key species, that community has problems,” Richard Butler, one of the review’s authors, told National Geographic.
While the herbivore population was going down, Earth’s temperatures were rising when volcanoes erupted. Hot vapors and gas began wiping out some of the dinosaur populatio
n and weakening the survivors.
The changes made the asteroid’s impact especially powerful. It caud more volcanoes to erupt, heated up Earth's atmosphere, and led to a sharp drop in the level of oxygen in the oceans.
With the dinosaurs gone, mammals (哺乳动物) began to evolve into bigger and more diver species. Many animals we e today, like birds, sharks, and even some cats and dogs, appeared after the asteroid hit Earth. But none rule Earth quite like the dinosaurs did.
21. Which of the following words can replace the underlined word “demi” in Paragraph 2?
A. Death B. Evolvement C. Prence D. Decrea
22. According to what Richard Butler said, what caud dinosaurs to die out?
北面冲锋衣怎么洗 A. A shortage of clean water. B. A break in the food chain.
C. A small variety of animals. D. The constant warming climate.
23. What was the negative effect of the asteroid hitting Earth?
有苦说不出的图片 A. Oceans became too hot for animals. B. There was less oxygen in the oceans.
C. Earth's climate became violent. D. The majority of the plants gradually died out.
24. The text is mainly about _______________.
A. the evolvement of mammals on Earth B. the gradual process of climate change
怀孕喝什么牛奶好
C. the importance of the balance of ecosystem D. the cau of the extinction of the dinosaurs
B
A two-day water ban in parts of Ohio and Michigan has been lifted.
Imagine being told not to drink, shower, or brush your teeth with tap water. That’s what happened to residents of Toledo, Ohio, and parts of Michigan over the weekend after tap water coming from Lake Erie was found to be unsafe. Hundreds of thousands of people were affected.
The water ban began on Saturday. As a temporary solution, bottled water was trucked into the area and the
Ohio National Guard was purifying water for residents. But by Monday morning, the ban had been lifted.
“Our water is safe,” said Toledo mayor, D. Michael Collins. “Families can return to normal life.” To reassure(使放心) people, he took a sip from a glass of the city’s tap water.
Toledo is Ohio’s fourth largest city. News about the water ban came after tests at one water-treatment
plant showed high levels of the microcystin (微囊藻素) caud by algae(海藻). Following the warning, Ohio governor John Kasich declared a state of emergency.
Drinking the contaminated water could cau people to feel uncomfortable. Health officials said that children and tho with weak immune systems should not shower or bathe in the water.
To try to solve the problem, city officials added carbon and chlorine(氯) to the water. Test results on Sunday showed that the toxins(毒素) had probably reached a safe level. It wasn’t until Monday that the mayor announced that six new water samples had come back clean and safe to drink.
Tap water accounts for two- thirds of the drinking water consumed in homes across the U.S., according to a study relead by the U.S. Department of Agriculture three years ago. Officials test the quality of the water to make sure it is healthy for people to drink.露寒
Toledo mayor, D. Michael Collins said that, going forward, scientists and political leaders need to come
together and figure out how to address the algae problem in Lake Erie.
25. What happened to the residents of Toledo on Saturday?
A. They were told not to u tap water. B. They had to carry water from a lake.
