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题型:阅读理解-阅读单选 难度:0.65 引用次数:24 题号:18824582

As the weather turns colder in some parts of the world, signs of autumn begin to appear. At this time of the year depending on your location, you may also see a familiar flower: chrysanthemums ( 菊花). We often call them “mums,” for short.

In parts of the United States, many people use chrysanthemums as decorations. The flowers sit next to pumpkins for Halloween, October’s famous holiday. But then the mums are thrown away along with rotting jack o’lanterns.

This yearly tradition bothered plant expert Jessica Damiano. In a recent article, she wanted to know why people simply threw away their mums. So, she asked some of her neighbors in Long Island, New York.

Everyone had the same answer: They thought the flowers were annuals — flowers that only last for one season.

Damiano explained that there are annual and perennial (多年生的) mums. Perennials come back for several growing seasons. Garden chrysanthemums, she adds, are actually perennials. Annual chrysanthemums are often sold in stores as potted gift plants. Special plant stores usually sell perennial mums.

If the plants are not labeled at a store, Damiano said to look at the leaves. The large, flat leaves of perennial mums have deep cuts around the edges. The narrow leaves of annuals do not.

Perennial mums are hardy flowers. But they cannot survive freezing temperatures. They also cannot survive extreme summer heat. So, that means about half of the United States is good for growing mums.

Perennial chrysanthemums come from China. Kaifeng, a city in China’s Henan province, is famous for its mums. Each year, the city holds a popular festival to celebrate the flowers. Chrysanthemum festivals are also held in other countries — like Pakistan, Germany, South Korea, Japan, and the United States, to name a few.

Chrysanthemums come in shades of orange, red, rust, pink, purple, yellow, cream, and white. Some can grow to nearly one meter in height. They reach their mature size in about three years. In warmer climates, they bloom again in spring.

1. Why did people throw away their chrysanthemums?
A.They don’t like the mums.
B.They don’t think the mums can flower again.
C.They mistake the mums as lanterns.
D.They throw away the mums by accident.
2. How can we tell the differences between annual mums and perennial ones according to Damiano?
A.By observing the leaves.B.By looking at the pot.
C.By asking others.D.By referring to books.
3. What kind of climate is suitable for mums’ growth?
A.Freezing.B.Extremely hot.C.Warm.D.Wet.
4. Where are the perennial mums originally from?
A.Pakistan.B.Germany.C.Japan.D.China.
【知识点】 科普知识 说明文 植物

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【推荐1】Very few animals except dolphins, chimpanzees (黑猩猩),and elephants have ever passed the mirror test for self-recognition. Scientists believe they have found a fish able recognize itself in a mirror. The result is surprising because this ability is usually only found in animals with bigger brains. Even humans don't usually pass the mirror test until they are about a year and a half old.

To test the wrasse (隆头鱼), a small fish in the sea, scientists put each wrasse in a tank with a mirror. They gave the fish a chance to get used to the mirror and watched their reactions. At first, the wrasses challenged the "other fish" by swimming up to the mirror and "fighting" them with the mouth. But soon the wrasses seemed to understand that something funny was happening. They began to swim toward the mirror upside down or in other unusual ways. It was like they were testing whether the fish in the mirror were really themselves.

Once the wrasses seemed used to the mirror, the scientists gave the wrasses a mark by putting the fish to sleep and injecting something under their skin. Some of the fish got a brown mark. Other fish got a clear "mark" that didn't have a color and couldn't be seen in a mirror.

After looking in the mirror, the wrasses with the brown marks would rub the area with the mark against the sand in the bottom of the tank. Then they would go back and look in the mirror again, as if checking if the mark was still there. But when wrasses with brown marks were put in tanks without mirrors, they didn't try to rub their marks away. And wrasses with clear "marks" didn't either, even when they could see themselves in the mirror.

The unexpected results are making some people look hard for other ways to explain how the wrasses reacted. So even though the wrasses seem to have passed the mirror test, the scientists will need some time to reflect on exactly what that means.

1. Why do the scientists feel surprised about the result?
A.The fish has a big brain.
B.Elephants failed to pass the mirror test.
C.Chimpanzees are as clever as dolphins.
D.The fish succeeded in passing the mirror test.
2. What did the scientists take notice of about the wrasses at first?
A.They swam in unusual ways.
B.They were unaware of themselves in the mirror.
C.They thought the mirror interesting.
D.They wanted to challenge themselves.
3. How did the fish with brown marks react in the mirror test?
A.They would rub the area with the mark against sand.
B.They would pay no attention to marks.
C.They would rest in the bottom of the tank.
D.They would swim upside down to the mirror.
4. Which can be a suitable title for the text?
A.Why Are Fish Smarter than Expected?
B.Do Colors Affect the Experiment?
C.How Is the Mirror Test Conducted?
D.Can Fish Recognize Themselves in the Mirror?
2020-04-13更新 | 83次组卷
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Researchers found that women are overcome by a burning desire to share gossip (流言蜚语) as soon as they hear it. They will typically tell the secret to at least one other person in 47 hours. Depending on who the gossip is about, their boyfriend, husband, best friend or mother is most likely to be the recipients of the information.


       The study of 3000 women aged between 18 and 65 also found that out of ten admitted they were unable to keep a secret—no matter how personal or secret the news was. It was also found that alcohol usually gives us a helping hand to let out secrets—with more than half admitting a glass or two of wine could get them to dish the dirt.

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Three quarters say they are able to keep quiet about a secret, and 83 percent consider themselves 100 percent reliable within each group of friends. Yet, four in ten admit gossiping to a close friend from another friendship group. Nearly half (45 percent) disclose secrets just for the weight to be lifted from their shoulders. More than four in ten think it is acceptable to share a friend’s secret with someone who doesn’t know him or her.

Private issues, true cost of purchases and affairs emerged top of the secret-keeping list, with girls most likely to share a secret chatting face-to-face, on the phone or via a text message. Fortunately, over a quarter (27 percent) said they forgot what they were told the following day.

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2. What makes women more likely pass on gossip? (No more than 3 words.)
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5. Should women tell secrets to others or keep secrets? Please give your reasons. (No more than 30 words.)
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【推荐3】A headache is a pain in the head which almost everyone feels at one time or another. Almost half of all people have a headache at least once a year. Most headaches are not dangerous but they get in the way of your work and disturb your life.

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Tension (紧张)headaches usually cause a slight to strong pain in the head. Many people describe such headaches as a tightening feeling. Some headaches cause a dull pain that can last for hours. They appear anywhere from the front to the back of your head.

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2020-08-11更新 | 26次组卷
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