Earthquakes are the shaking, rolling or sudden shock of the earth’s surface. Earthquakes happen along "fault lines" in the earth’s crust. Earthquakes can be felt over large areas although they usually last less than one minute. Earthquakes cannot be predicted -- although scientists are working on it!
Most of the time, you will notice an earthquake by the gentle shaking of the ground. You may notice hanging plants swaying or objects wobbling on shelves. Sometimes you may hear a low rumbling noise or feel a sharp jolt. A survivor of the 1906 earthquake in San Francisco said the sensation was like riding a bicycle down a long flight of stairs.
The intensity of an earthquake can be measured. One measurement is called the Richter scale. Earthquakes below 4.0 on the Richter scale usually do not cause damage, and earthquakes below 2.0 usually can’t be felt. Earthquakes over 5.0 on the scale can cause damage. A magnitude 6.0 earthquake is considered strong and a magnitude 7.0 is a major earthquake. The Northridge Earthquake, which hit Southern California in 1994, was magnitude 6.7.
Earthquakes are sometimes called temblors, quakes, shakers or seismic activity. The most important thing to remember during an earthquake is to DROP, COVER and HOLD ON. So remember to DROP to the floor and get under something for COVER and HOLD ON during the shaking.
1. Which statement about earthquakes is not correct?
A. Earthquakes are the result of the sudden shock of the earth’s surface.
B. Earthquakes usually can be felt because they can last for a long time.
C. There are usually some signs for people to notice an earthquake.
D. People can feel an earthquake over 6.0 because it is very strong.
2. According to the passage, when the earthquake happened, a survivor of the 1906 earthquake in San Francisco_______.
A. was riding a bicycle B. was just climbing the stairs
C. heard a low rumbling noise D. felt like riding a bicycle
3. What can be inferred from the passage?
A. Most of the time, people can not feel or predict the earthquakes.
B. Earthquakes are sometimes called temblors, quakes shakers or seismic activity.
C. The Northridge Earthquake in Southern California in 1994 caused severe damage.
D. When an earthquake happens, it is important to drop on the floor immediately.
Our warming planet is expected to face serious water crisis(危机)in the coming decades — which means each nation’s natural resource will be more important than ever.![]() ![]() |
According to the statistics, what is the world average of freshwater resource per person?
A.244,973 cubic kilometers |
B.241 cubic kilometers |
C.3,642 cubic kilometers |
D.6,122 cubic kilometers |
Which country or region has the most freshwater resource per year?
A.Guyana | B.Brazil | C.Iceland | D.China |
Which country or region appears twice on the top 5 lists?
A.Bhutan | B.Seychelles | C.Canada | D.Suriname |
It's generally believed that people act the way they do because of their personalities and attitudes. They recycle their garbage because they care about the environment. They pay $5 for a caramel brulee latte because they like expensive coffee drinks.
It's undeniable that behavior comes from our inner dispositions(性情), but in many instances we also draw inferences about who we are, as suggested by the social psychologist Daryl Bern, by observing our own behavior. We can be strangers to ourselves. If we knew our own minds, why should we need to guess what our preferences are from our behavior? If our minds were an open book, we would know exactly how much we care about the environment or like lattes. Actually, we often need to look to our behavior to figure out who we are.
Moreover, we don't just use our behavior to learn about our particular types of character --- we infer characters that weren't there before. Our behavior is often shaped by little pressures around us, which we fail to recognize. Maybe we recycle because our wives and neighbors would disapprove if we didn't. Maybe we buy lattes in order to impress the people around us. We should not mistakenly believe that we always behave as a result of some inner disposition.
Whatever pressures there can be or inferences one can make, people become what they do, though it may not be in compliance(符合)with their true desires. Therefore, we should all bear in mind Kurt Vonnegut's advice: "We are what we pretend to be, so we must be careful about what we pretend to be."
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According to the passage, personalities and attitudes are commonly believed to.
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2. |
Which of the following would Daryl Bern most probably agree with?
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3. |
What can be inferred from the underlined sentence in the passage?
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4. |
What does the author mainly discusses in the passage?
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One moment it was quiet and calm in the forest, the next, the air was charged with tension. The elephant had heard the distant alarm calls of animals and her mood suddenly changed. I urged the elephant deeper into the forest. We sounded like a forest fire --- cracking, snapping, trailblazing. But through all the noise came a sharp warning cry. The elephant stopped and we heard it again --- the tell-tale call of a spotted deer.
I looked quickly around the shadows of the forest. Rays of sunlight shone through tree branches, beneath which the patchwork(交错)of green plants and shadows-within-shadows would make tiger stripes(条纹)look more attractive. Apart from an occasional noise from the elephant’s stomach, the forest was silent.
Gradually, the tension slipped from our bodies. The elephant seized a nearby branch and put it into its mouth. I reached forward and gently moved my hand over the elephant’s neck; there was a soft part, free of wrinkles and hairs, behind her ear.
This was my fourth time to sense the aura of the forest in Corbett, although I saw no tigers in the end. Located at the foot of the Himalayan mountains, Corbett is home to about 135 Bengal tigers, but the forest seemed to be guarding their whereabouts(出没处), a silent reminder of their secrecy and rarity. Still, I was happy enough touching the elephant behind the ear. If I had so desperately wanted to see a tiger, I could have gone to a zoo. After all, spotting tigers merely confirms their beauty; tracking them can make you aware of something more.Which of the following was a clear signal of alarm?
A.The elephant stopped. |
B.A spotted deer called. |
C.The elephant seized a branch. |
D.The forest was silent for a while. |
The author begins his account of the tour in the forest mainly by _______.
A.describing various sounds |
B.comparing different animals |
C.listing different activities |
D.introducing various plants |
What does the underlined part “to sense the aura” most probably mean?
A.To see the diversity. |
B.To enjoy the scenery. |
C.To feel the atmosphere. |
D.To experience the freedom. |
How does the author feel after several visits to Corbett?
A.Seeing a Bengal tiger is quite thrilling. |
B.It is very time-consuming to travel in Corbett. |
C.It is really worthwhile to study the animals in Corbett. |
D.The process of finding Bengal tigers is most appealing. |
The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid --- we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink.
However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard(蜥蜴)native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water's surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, we'll need huge feet that we could bring up to our ears in order to create adequate "hitting."
But fortunately there is an alternative: cornflour. By adding enough of this common thickening agent to water (and it does take a lot), you can create a "non-Newtonian" liquid that doesn't behave like normal water. Now if the surface of the water is hit hard enough, particles(粒子)in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick liquid of cornflour.
Fun though all this may sound, it's still rather messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sink --- and take a shower afterward!
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Walking on water hasn't become a reality mainly because humans.
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2. |
What do we know about Basilicus basilicas from the passage?
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3. |
What is the function of the cornflour according to the passage?
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4. |
What is the author's attitude toward the idea of human's walking on water?
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There have always been a lot of commonly believed but false ideas about being fat and doing exercise. Some people believe that they can’t help putting on weight as they get older, while others hold that if they stop exercising, their muscles will turn into fat. Here are some more myths:
I’ll never lose weight --- I come from a fat family
Wrong! While we can’t change the body type we are born with, we can’t blame our genes for making us fat. There’s plenty of evidence that fatness runs in families, and the main reason is that they share the same habits of eating too much and exercise too little.
I am fat because I burn calories slowly
Wrong! Fatness is not caused by a slow metabolism(新陈代谢). If fact, although fat people consume more energy that slim people, they also fail to realize how much they eat! Keeping a diary can help you work out your daily food intake more accurately.
Exercise is boring
Wrong! Anything will become boring if you do it repetitively. The key is to develop a balanced and varied program that’s fun as well as progressive. If you enjoy a Sunday walk, take a different route. If you do Yoga, try a tai chi class. If you like swimming, set yourself a distance or time challenge.
No pain, no gain
Wrong! Exercise is not meant to hurt. Indeed, pain is your body telling you something’s wrong, and continuing to exercise could lead to serious injury. You may experience mild discomfort as you begin to exercise regularly, but this your body adapting to the positive changes in your lifestyle and the aches should disappear relatively quickly. If you don’t, rest and seek medical advice.What does the author think about being fat?
A.It is the family genes that make people fat. |
B.People are fat because they consume too little energy. |
C.A diary of exercise can prevent people from becoming fat. |
D.It is the consequence of people’s unbalanced lifestyle. |
According to the author, how can we make exercise more interesting?
A.By taking varied exercise. |
B.By choosing simple exercise. |
C.By doing regular exercise. |
D.By sticking to outdoor exercise. |
What is the author’s opinion about “No pain, no gain” in exercising?
A.Keeping fit is essentially a painful experience. |
B.Exercise should be stopped if continuous pain is felt. |
C.Pain in exercise is a precondition for reaching your goal. |
D.Getting used to pain leads to positive changes in your body. |
What is the purpose of the passage?
A.To declare the importance of keeping fit. |
B.To clarify some misconceptions about fatness and exercise. |
C.To confirm what has long been believed about keeping fit. |
D.To explain some medical facts about being fat and doing exercise. |