Ice volcanoes erupted on the shores of Lake Michigan last weekend, and an employee from National Weather Service ( NWS) caught sight of an astonishing scene on the spot. “You never know what you'll find at the lake until you go out there," the employee said, "Today it were volcanoes. ”
Despite their nickname, ice volcanoes aren't really volcanoes at all. They form at the edges of lakes, where thin sheets of ice form, and water shoots through holes in the ice, Water flows beneath the ice sheet and builds up enough pressure to push water to the surface. If the air above is cold enough, the released water freezes over the surrounding ground, forming a mini volcano of sorts.
Ice volcanoes can be very dangerous to climb on because they are empty inside and built over that hole in the ice. Although some frozen volcanoes were discovered a few years ago, it is still rare to witness one.
Ice volcanoes typically form near large bodies of water where freezing temperatures below allow an ice shelf to form over the water’s surface along the coastline. Meanwhile, waves beneath the shelf must be strong enough to crack the ice and push water out. For this reason, ice volcanoes tend to form along shorelines where winds blow up waves constantly.
For example, when the Oval Beach volcanoes were spotted, the wind was almost due west, which was perfect for pushing waves right into the shoreline at this location. Due to their superior size, the Great Lakes may be more likely to form ice volcanoes along their shores than smaller lakes.
So if you want to see an ice volcano in person, the Great Lakes may be your best choice—but be cautious where you step!
1.What did the NWS employee discover in Paragraph 1?
A.The eruption of ice volcanoes. B.Volcanoes erupting on the mountain.
C.Frozen shores of Lake Michigan. D.An ordinary scene of Lake Michigan.
2.What can we learn about ice volcanoes according to the passage?
A.They appear whenever it is freezing. B.They are real volcanoes in the ocean.
C.It is uncommon to see their eruptions. D.It takes years to form an ice volcano.
3.Where do the ice volcanoes usually form?
A.Shorelines with suitable weather conditions.
B.Smaller lakes where wind direction is perfect.
C.Along shorelines where waves are not powerful.
D.In the center of the ocean or large bodies of water.
4.What is this passage mainly about?
A.Dangers of ice volcanoes. B.Ice volcanoes and their formation.
C.Different kinds of volcanoes. D.The Great Lakes and ice volcanoes.
Will doing housework save you a trip to the gym? If you think so, you need to think again. A new study finds that people who do housework as their weekly exercise tend to be heavier than those who get their exercise by doing sports.
In fact, the more time people spend on performing housework as exercise, the heavier they tend to be. The finding is shocking, because people thought more physical activities — no matter what the form — would always lead to a lower weight.
Richard Cotton, an exercise physiologist, agreed that it is hard to lose weight only by doing housework. You’ll get the most reward for your time if you add some traditional physical activities, he said. For example, 30 minutes of sweeping floors bums about 130 calories, while 30 minutes of riding a bike bums 400 calories. But some housework does give you exercise. For example, 30 minutes of washing the clothes by hand bums 215 calories, close to what you would bum in 30 minutes of combined jogging and walking.
The study collected information from more than 4 ,600 people who were interviewed about their weekly physical activity. About 42 percent of them had 150 minutes of physical activity per week. Of those people, nearly two-thirds said that at least 10 minutes of their weekly activity was spent doing housework. Women and older people tended to report more time spent in doing housework as part of their physical activity. In other words, if the researchers didn’t count housework as a type of physical activity, just
20 percent of women had enough physical exercise.
Therefore, it is possible that people who said they exercised by doing housework were not really honest about the time or length of the activity, researchers said. "After all, the combination of different physical activities is the best choice," Cotton said.
1.Why does the author raise a question at the beginning of the passage?
A.To invite some readers to answer it. B.To draw readers' attention to the topic.
C.To test readers' knowledge about sports. D.To show the importance of going to the gym.
2.Which of the following belongs to “traditional physical exercise"?
A.Sweeping floors. B.Riding a bike.
C.Washing the clothes. D.Cleaning the garage.
3.What can we learn about losing weight according to the passage?
A.We should do various physical activities.
B.We should exercise by doing housework.
C.Jogging and walking are the best kinds of sports.
D.The more housework we do, the heavier we'll be.
That two bicycle salesmen were the first people to fly is as surprising today as it was over a century ago. In 1903 , the Wright brothers flew above the crowd at a public exhibition in the United States. For a long period, the whole world was still in shock.
The Wrights’ success is worth reviewing today because it challenges the 21st century's belief that, for young engineers, courses in arts and humanities are not as important as math and science. In fact, however, neither of the Wright brothers went to college or had any formal technical training.
To see what we can learn from the Wright brothers today, we must consider what made them different then. The Wright brothers grew up in a family where there was always encouragement on curiosity. The bookshelves in their home were filled with novels, poetry, and ancient history. The Wrights’parents had great curiosity for learning. They encouraged their children to read widely and find out the truth on their own. In their late 20s , the Wrights began reading books on the movement of bird wings , which led to their original air-control system.
The Wright brothers often compared themselves to artists because their invention had a lot to do with arts. For example, the art of flying was actually a complicated dance between man, machine and air, which required thousands of hours of practice to perfect. Technical skills and math were certainly necessary to build the machine, but much of the challenge lay in the art of flying in order to have beautiful lines during flight and landing.
If today’s schools hope to have more extraordinary engineers, they should broaden the limited academic requirements and encourage students to be curious about different subjects as the Wright brothers did.
1.What was peopled attitude to the Wright brothers, flight in Paragraph 1?
A.They were eager to fly. B.They wondered its safety.
C.They were shocked at it. D.They doubted if it was true.
2.Which of the following led to the brothers, success according to the passage?
A.Formal technical training. B.Research on birds' movement.
C.Math and science in college. D.Curiosity about finding the truth.
3.What does the passage encourage today's schools to do?
A.To abandon academic requirements on learning.
B.To encourage students to be artists and engineers.
C.To broaden students’ knowledge about the Wright brothers.
D.To be supportive to students' curiosity on different courses.
阅读下面材料, 根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。续写的词数应为150左右。
'Usual boring day!' This would be the answer from Roman if somebody asked him how his day was. These days he found everything boring, nothing excited him.
One day he was lying in his room as usual. Suddenly light went off. His room was rather hot without an air conditioner. Though he did not want to leave his room, he had to. Unwillingly, he left his room and came to living room. Living room was slightly cool as it had two huge windows.
His young brother was playing with his friend. They were rolling on the floor. He was looking out for the TV remote, but couldn't find. He got up and searched it everywhere, but remote was nowhere. He looked at his brother who was still lying on the floor playing.
He asked him, "Where is the remote?"
"Under the Sofa," his brother yelled.
He tried to look through, but it was dark. He put his hand under the sofa. He touched something, grabbed it and took his hand out. OMG! It was a snake in his hand!
After seeing that his brother started to yell, “ Snake, snake!” Mom came as soon as she heard their shouting. She too was horrified to see a snake. She was so scared that she even couldn’t speak a word. Two kids were trying to hide into each other's back. “What an old trick!” Roman thought and threw it over kids.
As the snake landed on the floor near to the kids, it started moving from left side to the right. Only then did Roman realize that the snake was real, not a toy. He threw the snake over kids because he thought it was a fake snake and kids were playing some tricks.
This time mom almost got heart attack. Now he was scared too. The snake was only 10 meters away from kids and was staring at kids. They even couldn’t call a rescue team. There might be some deadly damage before their arrival. There was not much time to think. It was the time for a quick action.
Paragraph 1：
As Roman was farther from the snake, he jumped to the window and grabbed the curtain.
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Paragraph 2：
After the rescue team caught and took the snake away, everyone went inside the home.
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假如你是李华，你的英国笔友Jean来信了解中国青少年的上网喜好。请你予以回复，并以自己为例，谈谈你最喜欢的网站或APP及理由。
注意：1. 词数80左右；
2. 可以适当增加细节，以使行文连贯。
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When I was a kid, my family didn’t live a rich life. As a result, we couldn’t ______ to eat out in a restaurant. My mother ______ cooked in the evening after she returned home from work.
One day, my mother had a very_____ day in the office and was exhausted. After work,she went into the kitchen and started preparing supper for us. When she was frying some eggs, she ______ to concentrate on her cooking and the eggs burned . She wanted to throw them away, but eggs were ______ for a family like mine back then. So she placed them in a plate and______to eat them herself.
After the eggs were put on the table, my father looked at them for a while. But he said ______. He just smiled at my mom and then asked me how my ______ was at school. Then he started eating the eggs. He finished them ______ so that my mother and I wouldn’t have to eat them.
Later that night, I heard my mom ______ to my dad for burning the eggs. And I’ll never ____ what he said, “Honey, I love burned eggs.”
The next day, I asked Dad ______ he really liked burned eggs. He held me in his arms and said, “Your mom had a ______ day at work yesterday and she was really tired. I didn’t want to ____ her. Besides, a little bit burned egg won’t hurt anyone.”
My father was a very ______ man, and I learned to be such a man from him.
1.A.agree B.afford C.promise D.prepare
2.A.seldom B.even C.always D.simply
3.A.tiring B.boring C.exciting D.relaxing
4.A.tried B.failed C.refused D.managed
5.A.rare B.fresh C.cheap D.delicious
6.A.struggled B.started C.hoped D.decided
7.A.something B.nothing C.everything D.anything
8.A.plan B.day C.status D.reputation
9.A.easily B.calmly C.carefully D.completely
10.A.lie B.complain C.apologize D.shout
11.A.forget B.catch C.accept D.understand
12.A.whether B.how C.why D.when
13.A.sad B.hard C.romantic D.comfortable
14.A.cheat B.lose C.upset D.disturb
15.A.modest B.hospitable C.optimistic D.understanding
