As Dr. Alexander Weiss said, human beings are always in pursuit of ______ .

A.fur

B.kidneys

C.loan

D.portraits

ed the antibiotic penicillin —a special "mould" he had cultivated all by himself.

A．Y

B．N

C．NG

A、James Watt has improved the steam engine.

B、Alexander Bell has invented telephone.

C、Penicillin was discovered by a Scottish Scientist Dr. Fleming.

D、Scotland was the home to the sports of Golf and Curling.

听力原文： Alexander Fleming was bom on August 6th, 1881 on Darvel, Scotland. He was one of the eight children in the family. As a boy he showed a strong interest in nature.

Just before his 14th birthday he went to London to live with an older brother, Dr. Thomas Fleming. At 16 he went to work as a clerk for a shipping company.

When Fleming was twenty, an uncle died and left him a small sum of money. Determined to use the money wisely, he asked his brother's advice. Dr. Flemning suggested that he take an examination for medical college. He took the exam, and he got the highest score. He then began to study at St. Mary's Hospital in London.

When he completed his medical training, Fleming did not join his brother's practice as he had earlier intended. He decided to spend the rest of his life as a biologist.

It was in the fall of 1928 that Fleming discovered penicillin, the chemical produced by a mold called Penicillum. But it was two years before anyone attempted to produce pure penicillin in quantity. This was achieved by two other scientists, Howard Florey and Ernst Chain, during World War Ⅱ , in time to save the lives of thousands of wounded soldiers.

In 1945, he, Florey and Chain received the Nobel Prize for medicine.

Alexander Fleming died at the age of 71, on March 11th, 1955.

(33)

A．In Britain.

B．In the United States.

C．In Canada.

D．In France.

k through the campus, I'll provide a bit of history about the college, and I'll describe some of our fine academic programs. Right now we're standing in the lobby of the Boyd Memorial Library. This library is named after Alexander Boyd, its first director and greatest benefactor. Thanks to Dr. Boyd's fine efforts, library development got off to a very good start here, and the Boyd Library now houses over 800, 000 volumes, including periodicals and newspapers. We also have more than 60, 000 maps and 2, 000 photographs in our collection. All of the library's collections are arranged for easy student access. There are comfortable study and reading lounges; in addition, more than 500 individual student study desks are located in the library within easy reach of reference materials and library stacks. Are there any questions about the library？ Good. Then let's move on to the Cline Biology Building, If we're lucky, the greenhouse will be open and we can take a peek inside.

Who is the speaker？

A．A librarian.

B．A tour guide.

C．A professor.

D．Alexander Boyd's secretary.

100,000 U. S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday.

Officials from the U. S. government's National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness.

The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.

Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to construct their residences, the NIH said.

Officials said more than $ 200 million has been spent already and the study is projected to cost $ 3.2 billion.

"We anticipate that in the long term, what we learn from the study will result in a significant savings in the nation's health care costs," Dr. Duane Alexander, who heads the NIH 's Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.

The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.

Some of the early findings will be about factors behind pre-term birth, which has become more common in recent years, according to Dr. Peter Scheidt of the NIH, who heads the study.

The people taking part will be from rural, urban and suburban areas, from all in- come and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to______.

A．conduct research

B．track public health

C．prevent or treat illness

D．speed up development

A study that will cost $ 3. 2 billion and last more than two decades to track the health of 100,000 U. S.children from before birth to age 21 will be Iaunched in January, U. S. health officials said on Friday.

Officials from the U. S. government's National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that af- fect later development, with the goal of learning new ways to treat or prevent illness.

The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.

Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to con- struct their residences, the NIH said.

Officials said more than $ 200 million has been spent already and the study is projected to cost $ 3. 2 billion.

"We anticipate that in the long term, what we lea:m from the study will result in a significant savings in the nation's health care costs, " Dr. Duane Alexander,r who heads the NIH's Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.

The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.

Some of the early findings will be about factors behind pre-term birth, which has become more common

in recent years, according to Dr. Peter Scheidt of the NIH, who heads the study.

The people taking part will be from rural, urban and suburban areas, from all income and educa-

tional levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to____.

A.conduct research

B.track public health

C.prevent or treat illness

D.s.peed up development

ller. Helen was healthy until the age of nineteen months when she developed a brain fever that may have been scarlet fever. The fever left her unable to hear, see or speak. Captain Keller was a newspaper editor and was determined to find help for his child. He contacted Dr. Alexander Graham Bell to assist him. Dr. Bell found Michael Anagnos, the director of the Perkins Institution for the blind in Boston, Massachusetts. Mr. Anagnos sent one of his best students, Annie Sullivan to help Helen.

The students at the Perkins Institution made a doll for Annie Sullivan to give Helen. Ms. Sullivan began using the doll to spell the word doll in Helen's hand. Helen learned quickly to make the letters. Helen learned many words and soon wanted to learn to speak. Miss Sarah Fuller of the Horace Mann School was her first speech teacher. Helen learned to use the raised print for reading and soon wanted to go on to college. Helen graduated from Radcliffe College with honors in 1904. Annie Sullivan spelled books and lectures in Helen's hand all through college.

Helen Keller spent the rest of her life trying to make it easier for disabled people to learn. She fought for women's rights, equality for minorities and worker's rights. She was a crusader for people who needed help. Helen Keller won many awards for her work for the blind. Helen Keller died on June 1, 1968, a few weeks short of her 88th birthday. She will be remembered by the world as a champion and hero of the blind and disabled people.

Which of the following is true？

A．Helen Keller became disabled after the disease.

B．Helen Keller learned to finger spell and read.

C．Helen Keller never attended college.

D．Helen Keller was born in Wisconsin.

根据下面材料，回答题。

U.S. to Start $3.2 Billion Chiltd Health Study in January

A study that will cost $3.2 billion and last more than two decades to track the health of100,000 U.S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday.

Officials from the U. S. government&39;s National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness.

The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.

Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to construct their residences, the NIH said.

Officials said more than $200 million has been spent already and the study is projected to cost $3.2 billion.

"We anticipate that in the long term, what we learn from the study will result in a significant savings in the nation&39;s health care costs," Dr. Duane Alexander, who heads the NIH&39;s Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.

The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.

Some of the early findings will be about factors behind pre-term birth, which has become more common in recent years, according to Dr. Peter Scheidt of the NIH, who heads the study.

The people taking part will be from rural, urban and suburban areas, from all income and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to __________. 查看材料

A.conduct research

B.track public health

C.prevent or treat illness

D.speed up development