1 . Longing for the most amazing places on the planet? You can do no wrong with these lakes across the globe.
Five Flower Lake
Set in the striking karst landscape of the Jiuzhaigou Valley in Sichuan province, China, Five Flower Lake is extraordinarily clear, with visibility to a depth of 40 metres. Five Flower is one of a series of blue-, green-and sky-colored lakes blocked by rock falls, but it differs from the others as its waters change color, looking sometimes yellow, sometimes green, but usually diamond blue. In winter, Five Flower never freezes; in summer, it never dries up. Local wildlife living in the surrounding mountain forests include the rare giant panda and the golden snub-nose monkey.
Crater Lake
The deep-blue waters of Crater Lake in Oregon, US, fill the outlet of an ancient volcano that collapsed 7,700 years ago. Its strangest occupant is the “Old Man of the Lake”, a nine-metre-tall tree stump(树桩), which has stood upright in the water for more than a century. No rivers or streams enter the lake. Water loss in summer is compensated by winter snow and rain, the entire body of water being replaced every 250 years.
Lake Ohrid
Ancient Lake Ohrid has been around for about five million years and crosses the mountainous border between Macedonia and Albania. It has unique plants and wildlife, including the Ohrid “plashica”, a fish native to the lake, whose scales(鳞片) are used to make Ohrid pearls.
Lake Maggiore
Surrounded on three sides by the Lipontine Alps and touching the plain of Lombardy to the south, Lake Maggiore is Italy’s longest lake. Considered part of the country’s lake district, it is shared with Switzerland. Characterized by a Mediterranean-style climate, temperatures here are mild all year. This has given rise to some of northern Italy’s most wonderful gardens, which appear to float like flower-decked boats on the water.
1. What makes Five Flower Lake different from other lakes?| A．Its agreeable climate. | B．The rare local wildlife. |
| C．Its color-changing waters. | D．The visibility of waters. |
| A．By artificial rain. | B．By snow and rain. |
| C．From nearby streams. | D．From an ancient tree. |
| A．Five Flower Lake. | B．Crater Lake. |
| C．Lake Ohrid. | D．Lake Maggiore. |
2 . There has been a very serious decline in the numbers of shallow-water fish as a result of overfishing. People still want to eat fish, so the fishing industry must look at other sources, especially the deep waters of the Atlantic.
Conservation measures will have to be put in place if these deep-sea fish are to survive. Research on five such species shows that numbers have declined by between 87 percent and 98 percent.
The problem is emphasized by the fact that the decline in numbers happened in less than twenty years. Deep-sea fish take a long time to reproduce and normally live for many years.
The damage done by overfishing goes beyond the sea environment. Millions of people make a living in the fishing industry.
| A．Billions of people rely on fish for protein. |
| B．Many people now choose not to eat deep-sea fish. |
| C．Unfortunately, their reproduction rate is very low. |
| D．This puts them in the category of “critically endangered”. |
| E．None of these facts has been taken into account by the fishing industry. |
| F．Overfishing is a major cause of decline in populations of ocean wildlife. |
| G．This has resulted in a sharp decline in the numbers of many of the species caught. |
1. 得知情况及感受；
2. 表达安慰和鼓励；
3. 打算提供的帮助。
注意：1. 词数100左右；
2. 可以适当增加细节，以使行文连贯.
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4 . 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. |
| 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. |
| 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. |
| 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? |
5 . Finding a mountain goat resting high on a cliff(悬崖) might thrill many of the millions of tourists who visit Wyoming’s Grand Teton National Park every year, but park officials say it might be time for the bearded animals to go.
The problem, according to the park, is that Grand Teton’s 100 or so mountain goats threaten about 80 bighorn sheep. The bighorn sheep numbered as many as 125 just a few years ago. The strong goats spread disease and compete with bighorn sheep for food. Unlike small-sized bighorn sheep, Grand Teton’s mountain goats aren’t native to the park. They were introduced to the park in the 1960s.
Grand Teton spokeswoman Denise Germann said, “We’ve got a management responsibility to protect the native species. After hearing from the public on the proposal (建议) in January, park officials expect to decide as soon as mid-February on what to do about the mountain goats.”
The goats are reproducing rapidly. Now might be the best time to reduce the animals before they’re too many to bring under control, according to the Park Service.
One wildlife biologist who studies bighorn sheep praised the proposal. Mountain goats’ original habitat is nowhere close to where they’ve been introduced in the U.S. to provide hunting opportunities, said Rob Roy Ramey II, with Nederland, Colorado-based Wildlife Science International, Inc.
Wildlife managers should get rid of mountain goats not only in Grand Teton but elsewhere to help struggling bighorn sheep, Ramey said. “Unfortunately, state wildlife agencies sell nonnative wildlife viewing opportunities to the public,” Ramey said. “This is not a zoo in the wilderness. It should really be for native wildlife.”
1. What can be learnt about the bighorn sheep in the park?| A．Their size is huge. | B．Their number is decreasing. |
| C．They arrived in the 1960s. | D．They threaten local species. |
| A．By providing suggestions. | B．By driving away mountain goats. |
| C．By volunteering in the park. | D．By taking over Grand Teton National Park. |
| A．Curious. | B．Proud. |
| C．Surprised. | D．Concerned. |
| A．To offer hunting chances. |
| B．To sell nonnative wildlife. |
| C．To satisfy wildlife managers. |
| D．To increase diversities of sheep. |
Lions，tigers and other animals are staying awake at night
Scientists have known that human activities can lead to changes in nature．Many animals may move around less or travel to far places to keep away
The latest research found even activities like farming and camping can
The new findings are
