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发布时间:2024-05-17 23:26:32

[单项选择]Hearing the gunshot, all the birds flew _____ every direction.
A. in
B. on
C. to
D. toward

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[单项选择]Hearing the gunshot, all the birds flew _____ every direction.
A. in
B. on
C. to
D. toward
[简答题]Part 1Birds Do you like birds What kinds of birds are there where you live Are there many birds around your neighborhood In your country, do birds have special meaning Do you think we should protect birds
[简答题]Have you ever heard the saying "All work and no play makes Jack a dull boy" (只工作,不玩耍,聪明孩子也变傻). How do you interpret it and how are you going to act it out Write a composition titled Let’s Learn to Relax. You should write at least 120 words. 文中应包括以下要点: (1)我对这一谚语的理解; (2)人们可以选择多种方式放松自己; (3)我打算怎样做。
[简答题]frog因为人类失去habitat Birds
[单项选择]B Passenger pigeons (旅鸽)once flew over much of the United States in unbelievable numbers.Written accounts from the 18th and 19th centuries described flocks (群)so large that they the sky for hours. It was calculated that when it populationzxxk reached its highest point ,they were more than 3billlionpassenger pigeons—a number equal to 24 to 40 percent of the total bird population in the United States, making it perhaps the most abundant bird in the world. Even as late as 1870 when their numbers had already become smaller, a flock believed to be 1 mile wide and 320 miles (about 515 kilometers) long was seen near Cincinnati. Sadly the abundance of passenger pigeons may have been their undoing. Where the birds were most abundant, people believed there was an ever-lasting supply and killed them by the thousands,Commercial hunters attracted them to small clearings with grain, waited until pigeons had settled to feed, then threw large nets over them, taking hundreds
A. To seek pleasure.
B. To save other birds.
C. To make money.
D. To protect crops.
[单项选择]    The first birds appeared during late Jurassic times. These birds are known from    four very good skeletons, two incomplete skeletons, and an isolated feather, all from    the Solnhofen limestone of Bavaria, Germany. This fine-grained rock, which is    extensively quarried for lithographic stone, was evidently deposited in a shallow (5) coral lagoon of a tropical sea, and flying vertebrates occasionally fell into the water    and were buried by the fine limy mud, to be preserved with remarkable detail In this    way, the late Jurassic bird skeletons, which have been named Archaeopteryx, were    fossilized. And not only were the bones preserved in these skeletons, but so also    were imprints of the feathers. If the indications of feathers had not been preserved in (10) association with Archaeopteryx, it is likely that these fossils would have been    classified among the dinosaurs, for they show numerous theropod characteristics.    Archaeopteryx were animals about t
A. to indicate the size of Archaeopteryx
B. To specify the age of the Archaeopteryx fossils
C. To explain the evolutionary history of Archaeopteryx
D. To demonstrate the superiority of the theropod to Archaeopteryx
[单项选择]

The US president’ s helicopter flew over the path of the deadly storm in the state of Alabama, where eight teenagers were killed Thursday in the collapse of a high school in the town of Enterprise.
The storm killed two other people in Alabama, nine in the neighboring state of Georgia, and a young girl in Missouri. Fourteen teams of experts from the Federal Emergency Management Agency are evahiating the damage to assess what federal ass/stance might be needed in situations that overwhelm state and local capabilities.
That agency and President Bush were widely criticized for their poor response to Hurricane Katrina in August of 2005, which killed more than 1,800 people along the Gulf Coast. Asked if the president’ s decision to visit the tornado- stricken areas Saturday was influenced by the political fall-out from Hurricane Katrina, White House Spokeswoman Dana Perino said that was never part of the discussion.
Traveling with the president, FEMA
A. To find out the lost people and animals.
B. To criticize the authority’ s poor response.
C. To assess the federal assistance needed.
D. To make clear the investment in agriculture.

[单项选择]Passage Four A man from flew York is suing four big fast-food companies. Caesar Barber is going to court because he says that high-fat foods at McDonald’s. Burger King. Wendy’s, and KFC’ Corporation destroyed his health. Barber says that he ate at these restaurants four or five times a week for many years. He claims that this diet made him very overweight. According to Mr. Barber. obesity gave him diabetes . high blood pressure. and two heart attacks. When a reporter asked him why he ate there so often, he said. "I was single, it was quick. and I’m not a very good cook " Barber’s lawyer, Samuel Hirsch. says that the suit has two different purposes. The first is to make fast-food restaurants offer healthier foods in smaller amounts. The suit also asks that fast foods have warning labels similar to labels on cigarettes. Mr. Hirsch says that these labels are necessary because the effects of fast foods are similar to the effects of cigarettes, alcohol, and illegal drugs such as heroin.
A. Attacking
B. Mentioning.
C. Complaining about.
D. Taking a legal action against,
[单项选择]Passage Four
Birds are literally half-asleep-with one brain hemisphere alert and the other sleeping, according to a new study of sleeping ducks.
Earlier studies have documented half-brain sleep in a wide range of birds. The brain hemispheres take turns sinking into the sleep stage characterized by slow brain waves. The eye controlled by the sleeping hemisphere keeps shut, while the wakeful hemisphere’s eye stays open and alert. Birds also can sleep with both hemispheres resting at once.
Decades of studies of bird flocks led researchers to predict extra alertness in the more vulnerable, end-of-the-row sleepers. Sure enough, the end birds tended to watch carefully on the side away from their companions. Ducks in the inner spots showed no preference for gaze direction.
Also, birds dozing (打盹) at the end of the line resorted to single-h
A. the phenomenon of birds dozing in pairs is widespread
B. birds prefer to sleep in pairs for the sake of security
C. even an imagined companion gives the bird a sense of security
D. a single pet bird enjoys seeing its own reflection in the mirror
[单项选择]The linear flight formations of migratory birds are called echelons. The V and the J structures are typical and are the most readily recognized flock echelons, but other variations also occur. Studies of several species have shown that a true V-shaped echelon is, in fact, less common than a J formation is.
There are two well-supported and complementary explanations for why birds fly in formation. One is to conserve energy by taking advantage of the upward vortex fields created by the wings of the birds in front. The other is to facilitate orientation and communication among the birds. These explanations are not mutually exclusive, and both have been backed by a variety of studies. The relative importance of each undoubtedly shifts as various factors, such as the season of the year or the purpose of individual flights, change. During local feeding flights, for example, energy conservation is probably much less important than careful orientation and collision avoidance are. During l
A. The characteristics of echelon changes.
B. Lack in hands and equipment.
C. Too many intuitive predictions.
D. Too many factors involved in echelons.

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