1、Absolutely not. Its part of flying, and it isnt dangerous. Turbulence is caused when two masses of air hit one another at different speeds. Wind, thunderstorms and closeness to mountains are all possible reasons. Despite how dangerous it feels, turbulence wont crash your plane. Even in extremely rou
2、gh air, the wing is not going to break off.Why are plane windows round?If you have traveled by plane before, you may have noticed that every plane window has a round design. This isnt to make the plane look good. Its for the safety of everyone on board. As the airplane flies higher and higher, the o
3、utside atmospheric pressure gets lower and lower. In the end, the pressure inside the plane becomes greater than the pressure outside. At this time, windows that can resist pressure are needed.Square windows can crack. The different pressure inside and outside put stress on the right angles. However
4、, rounded corners help to reduce these stresses by spreading them around the window.21. It can be learned from the passage that_. A. passengers waste falls onto the land direct B. blue ice frequently falls out of planes C. blue ice from a plane is a great safety threat D. passengers waste is dealt w
5、ith on the ground22. According to the passage, turbulence_.A. is very dangerous B. seldom happens during flying C. may crash a plane D. can be caused for many reasons23. The plane window has a round design for the purpose of _. A. economy B. security C. beauty D. convenience 24. The passage is meant
6、 to _.A. tell us some interesting facts about flying B. inform us of flying safety tips C. warn us of the danger of flying D. introduce us the design of a plane BChinese colleges have come up with an unusual way to help freshmen settle in. They turn their gyms into campsites for moms and dads, some
7、of whom have traveled thousands of miles across the country, to say goodbye. For the past five years, Tianjin University in northern China has provided free accommodation for parents in what it calls tents of love. Other schools let parents sleep on mats in school gymnasiums.Going to college is a li
8、fe moment and my parents didnt want to miss that, said Zhang Jinqi, a freshman at Tianjin University majoring in applied chemistry. His parents traveled with him on the 19-hour train journey from Jiangxi province in southern China.Images of schools gyms packed with parents have been widely shared on
9、 Chinese social media prompting a debate on whether Chinas only children are too coddled.Some have voiced criticism of Tianjin University, saying that they think both the parents and the children should be more independent.Xiong Bingqi, the deputy director of think-tank 21st Century Education Resear
10、ch Institute,thinks the problem is overstated. It has always been a problem in China that at the start of every school year, colleges are packed with parents who come along to drop off their children and stay with them, he said. For some families, its their way to celebrate the first-ever family mem
11、ber whos able to go to college, Xiong added. Theres nothing wrong with sharing the happiness.Zhangs father said the decision to escort their son was a no-brainer. He and his wife are among the many campers who sleep in the 550 temporary tents set up in the Tianjin University gym.My child has lots of
12、 luggage and we also want to go travel, said his father Zhang Yonghui. The hotels nearby are fully booked so I had to sleep in the tents. Their son also shrugged off the criticism although he said he was looking forward to living on his own for the first time. Being accompanied by my parents doesnt
13、mean Im spoiled.25. Zhang Jinqi thought his parents accompanied him to his university mainly because _. A. they wanted to go to travel in Tianjin B. they wanted to help him with his luggage C. they wanted to witness his important life moment D. they doubted his independence26. Xiong Bingqi thinks go
14、ing to college with parents company _. A. is not such a serious problem as people think B. is a chance for freshmen to travel with their parents C. is a long-lasting problem to be solved D. is not good for the freshmen to build up their independence 27. The underlined phrase “shrugged off” probably
15、means_. A. was in favor of B. thought nothing of C. was ashamed of D. was concerned about 28. Whats the main idea of the passage? A. “Tents of love” is widely criticized. B. Chinese only children are too spoiled. C. There are different opinions on “tents of love”.D. Chinese college education is face
16、d with a big challenge. C Times are a little tough at our house right now. Neither of us makes a lot of money, but years of experience have taught us how to walk between the raindrops and make it from one month to the next with a fair amount of grace. I cook a lot at home, more when were facing lean
17、 times. When I know that I have to keep us fed on not much money, I fall back on my grandmothers recipes. She taught me to cook. When I was a kid, my twin brother and I spent long summer weeks and Christmas vacations with my mothers parents in the mountains of North Carolina. Rather than go hunting
18、with my grandfather on frozen mornings, I found myself more and more in the kitchen with my grandmother, watching her making a lemon cheese pie with her soft hands. My great-grandmother died when my grandmother was 11 years old. As the eldest daughter, she was expected to take on all of the housewor
19、k while attending school. Throughout the Great Depression, she learned how to make a little food go a long way. Vegetables were cheap, so she cooked a lot of them, mostly only using small amounts of meat for seasoning. Roast beef was a twice-a-month luxury, but there was nothing she couldnt do with
20、a chicken, every part of it. Nothing went to waste. Now I understand that her food was sacred(神圣的). I feel connected to my grandmother and to hundreds of years of family when Im in my kitchen making country food. In the delicious smells is a long tale of victory over hard times, of conquering starva
21、tionof not just surviving, but finding joy and pleasure in every meal of every day. From grandmother I learned to take real satisfaction in feeding people. My grandmother would beam with pleasure over a heavily laden table and say:“Do you know what this would cost at the restaurant?”I never knew wha
22、t restaurant in particular she had in mind, but I knew that the question was totally not fair, because no restaurant anywhere can cook like a grandmother. But now, thanks to her guidance and years of practice, I can. 29. According to the passage, the author cooks a lot at home because_. A. she wants
23、 to try out her grandmothers recipes B. she is quite particular about food C. the food in restaurants is unhealthy D. she and her husband are embarrassed financially 30. According to the passage, the authors grandmother_. A. learnt to cook because of the Great Depression B. was good at cooking as we
24、ll as careful in budgeting C. preferred chicken to beef D. had to walk a long way to learn cooking in a restaurant 31. It can be inferred from the passage that the author_. A. liked to compare her grandmothers food with that in restaurants B. learnt something more precious than cooking from her gran
25、dmother C. hasnt found the joy in cooking though she can cook like her grandmother D. feels connected to her grandmother when making country food in the kitchen 32. Which of the following can be the best title of the passage? A. Cook like my grandmother B. My grandmothers sacred food C. My grandmoth
26、ers recipe D. Joy and pleasure in cooking D The city of Hangzhou in Zhejiang province is a frequent headline. As a major tourist attraction in China, there were so many tourists during last years hottest travel seasons that most of them see only the top of each others heads rather than one of the ma
27、ny sights. Hangzhou is also famous for creativity and famous people, being home to Internet giants such as the Alibaba Group and Net Ease. However, the city has never drawn so much attention as it did in September, when the G20 Summit welcomed heads of the worlds 20 major economies and international
28、 organizations. For two days, they discussed topics including strengthened policy coordination, building new paths for growth, effective economic and financial governance, as well as strong world trade and investment. On the night of Sept 4, the city also entertained its guests and audience from aro
29、und the world with a marvelous party directed by Zhang Yimou. The show, entitled Symphony on West Lake is based on Zhang Yimous Impressions of West Lake, an astonishing performance that takes place right on the surface of the water, combining music, dance, and light effects all against the backdrop of nature. Influential discussions and attractive shows may be enough to draw the worlds attention toward Hangzhou, and for young people around the world
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