抗兵相若：哀者必胜( )A．出乎尔者：拔乎其萃 B．太仓之粟：陈陈相因 C．长袖善

阅读短文, 根据其内容回答问题。

A type of bird that is now extinct (消失) is the passenger pigeon. The passenger pigeon lived in the eastern part of North America. Scientists believe that in the year 1500 there were as many as five billion of these birds living from Canada to the Gulf of Mexico. They flew at great speeds and would travel to many places to look for food. Passenger pigeons grew to be about 16 inches long.

Settlers who came to North America killed the passenger pigeon for food and for its feathers. The forests where they lived were cut down to clear the land for farming. Because the passenger pigeon laid only one egg at a time, their population did not grow quickly. The last passenger pigeon died at Cincinnati Zoological Gardens in 1914.

Another type of bird that has become extint is the dodo. The dodo lived on an island called Mauritius in the Indian Ocean. It had short, stubby legs and wings and a large curved beak. The dodo was about the size of a large turkey. It was acturally related to the pigeon, but it could not fly. Like the passenger pigeon it laid only one egg at a time. Dodos became extinct because they were eaten by sailors and animals, such as pigs and monkeys, that the sailors brought to the island. The dodo is believed to have died out in 1680.

Another flightless bird that has become extinct is the moa. The moa lived on the North and South Islands of New Zealand. Like the dodo, the moa’s legs were shorter, but some of these birds grew to be more than ten feet tall. And the causes of its extinction is the same as the dodo’s.   The moa is believed to have died out sometime during the 1700s.

小题1: Were there many passenger pigeon in the year 1500?

小题2:When did the last passenger pigeon die at Cincinnati Zoological Gardens ?

小题3:Where did the dodo live before it died out?

小题4: How many kinds of birds have died out in the passage?

小题5: Why have these birds died out?

阅读理解

     Tom Whittaker, born in England in 1949, is an amazing example of a Can Do person. The young man

came to the United States in 1975, where he studied for a Master's in Arts. Although studying took up

much of his time, he traveled throughout the US and Canada climbing many different types of rock walls.

Thus, he made friends with many people with the same interest.

     However, on Thanksgiving Day in 1979, a car driven by a drunk driver lost control and suddenly

turned into his lane(车道), striking the head of his vehicle. The injuries to both of his legs and feet resulted

in the removal of one of his kneecaps(膝盖骨), and the amputation(截去)of his right foot.

      It wasn't easy, but after some time, with great effort and strong will, Tom rebuilt his hope for life. The

report of his story moved the whole nation of America. Eventually he earned another master's degree and

founded the Cooperative Wilderness Handicapped Outdoor Group. This program's success sent Tom

around the world to spread his message that "it is not the falling down, but the getting back up that matters". He became a professor in Adventure Education at Prescott College in Arizona, where he taught the

top outdoor leadership program in the nation.

     After 25 years of experience as a mountaineer, on May 27, 1998, Tom achieved his greatest

accomplishment so far:reaching the peak of Mt. Everest. Tom was actually the first person with a disability to ever climb and stand on the peak of Mt. Everest. He realized that reaching the peak of Mt. Everest

could do nothing to change his disability, but it could do a lot to change attitudes. Tom Whittaker wanted

people to realize that disability is as much an attitude as it is a condition.

1. For what did Tom Whittaker go to the US?

A. To improve his climbing skills.

B. To take his master's degree.

C. To become a professional mountaineer.

D. To meet other mountaineers in the US.

2. What led to the accident that caused Tom Whittaker's disability?

A. That his car was out of control.

B. That he was driving on a wrong lane.

C. That a drunk driver ran his car into Tom's.

D. That he got drunk on Thanksgiving Day.

3. When did Tom become a mountaineer?

A. Shortly before he reached the peak of Mt. Everest.

B. Two years before he went to the US.

C. Shortly after he arrived in the US.

D. After he recovered from the car accident.

4. Which of the following events made Tom first widely noticed by the American public?

A. Teaching outdoor leadership program at college.

B. Climbing Mt. Everest in spite of his disability.

C. Founding the Cooperative Wilderness Handicapped Outdoor Group.

D. His determination to fight against his disability.

酶的非竞争性抑制剂可使其Km值（），而Vm值（）。

在队列研究中，研究对象应该选择哪一类人

A．患某病的病人

B．患某病的暴露者

C．不患某病的暴露者

D．患某病者与不患该病者

E．暴露与不暴露于研究因素的人

用东方式握法进行底线正拍抽击球，击球点在身体（以右手持拍为例）（）

A.右侧前方

B.左侧前方

C.右侧后方

D.正前方