北师大版高中英语选修七高二限时练习 文科普通班英语练习005

高中英语学习材料madeofjingetieji高二限时练习文科普通班英语练习005使用时间_________班级_________姓名_________考号________一．阅读理解:AThe Internet plays a big part in human life. We use it for work and entertainment. We can find new recipes on the Internet or advice on staying healthy. We can even use it to learn a new language and connect with family and friends.As far as the Internet being a part of our lives — well, that train has left the station. This expression means there is no going back to an Internet-free life. But can using the Internet too much be bad for our health? It might be, say researchers.A new study finds that heavy Internet use may be connected to high blood pressure in an unlikely group — teenagers. The study results show that teens who spend at least 14 hours a week online were more likely to have high blood pressure. High blood pressure can cause heart and kidney(肾)disease. It is also closely linked to some forms of dementia(痴呆), a brain disease. Dementia is marked by memory disorders, personality changes, and a reduced ability to reason.The Henry Ford Hospital in Detroit, Michigan did the study. 335 young people from 14 to 17 years old participated in it. One hundred and thirty-four of the teens were described as “heavy Internet users.” Researchers found that out of these 134 teens, 26 had high blood pressure.The lead researcher of the study is Andrea Cassidy-Bushrow. In a statement she said, “Using the Internet is part of our daily life but it shouldn’t consume us.” For the purpose of the study, she explains, teens considered heavy Internet users were online on “average 25 hours a week.” Ms. Cassidy-Bushrow adds that it is important for teens to take “regular breaks from their computers or smartphones” and to do some “kind of physical activity.”1. Which of the following statements is closest in the meaning to the underlined sentence in Paragraph 2?A. The train has stopped at the wrong station.B. There is something wrong with the train.C. Life without the Internet is nowhere to be found.D. The train has changed its course.2. If a person suffers from Dementia, he ________.A. will remember everything clearlyB. will change his characterC. will develop a brain cancerD. can do analysis accurately3. What is the percentage of young “heavy Internet users” with high blood pressure?A. 26%.B. 14%.C. 25%.D. 19%.4. Which of the following is the best title of the passage?A. The Internet Does Harm to the Study.B. Too Much Internet May Be Bad for Teenagers.C. We Should Stop Using the Internet. .D. High Blood Pressure Is around the Corner.BBrooke Martin’s golden retriever(金毛猎犬) Kayla hated being left alone or separated. She would howl, pace, and chew on things. Brooke learned that other people had the same problem with their pets. She wondered: ―What if you could talk to your dog if you were gone?Working with her father in their garage, the 16-year-old came up with several ideas. Finally, she invented a device that allowed pet owners to video chat with their pets! She calls the device iCPooch. ―The dog doesn’t have to answer the call, explains Brooke. ―It comes up immediately on the screen on their end. It’s a two-way audio and video—you can see and hear each other.With a click of a button you can even send the dog a treat!Her invention has earned her a spot competing against nine other finalists in a young scientist competition for middle-school students. These finalists, selected based on their short video presentations, are working with mentors over the summer before heading to the final competition in St. Paul, Minn.After Martin’s video put her among the 10 finalists in the Discovery Education 3M Young Scientist Challenge, she was paired with Delony Langer-Anderson, a product development scientist in 3M’s consumer health care division. ―I just lead her down the product development path, Langer-Anderson told Live Science. This path includes guidance on how to test the potential product, which combines a video chat device that answers imm ediately on the dog’s end with a dog treat device the owner can remotely activate.One thing I have thought about a lot is, what happens if while the device is on the floor, what if your dog knocks it over, or scratches the screen? Martin said. She and Langer-Anderson discussed this, and Martin is now testing materials at a local dog shelter by taping them to the dog house floors to see how well they withstand sharp teeth and claws.The finalists create models they can test, with the guidance from a mentor. Their projects include a fuel cell that transforms cut grass into electricity and an app that rewards drivers for not texting orcalling. Langer-Anderson tries to help the students work through the scientific method, testing their hypothesis, in a deter mined way, so the kids don’t get buried in data. she said.5. Which of the following would be the best title of the text?A.“iCPooch” wins in a young scientist competition.B。