CourseDetailsCrazyCreatures(3

Every living cell contains genes. They are too small to be seen in a microscope, but they are very important. Each set of genes in the body contains all the instructions needed to make a human being. Some genes determine hair color. Some determine the shape of a nose. Some genes help determine your height and even your weight.
Genes are made of a chemical called DNA-the letters stand for deoxyribonucleic acid(脱氧核糖核酸). In the early 1950's, two scientists, Francis Crick and James Watson, figured out how the parts of DNA fit together. Once scientists understood this structure, it became possible to take pieces of DNA apart and put them together in new ways. New kinds of genes could be made in this manner.
Scientists have studied the genes of many plants and animals. They have worked out which genes affect the color of a tomato and the thickness of its skin. Working out which genes determine which features is called genetic mapping, scientists have begun the Human Genome Project, an ambitious effort to map all the genes in the human body.
Some genes may be defective(有缺陷的). For example, something might be wrong with the gene that makes blood clot(凝聚). A baby born with this defective gene could suffer serious hemorrhages(出血) or even bleed to death because his or her blood fails to clot. If scientists ever learn how to map all the genes in our bodies, they can determine whether or not an unborn child has any defective genes. They might even discover how to treat these genes before the child is born.
What was the achievement of Francis Crick and James Watson?
A. They discovered why people have different hair colors.
B. They learned that some people bleed for long periods of time.
C. They looked at human cells under the microscope.
D. They worked out the structure of DNA.
What is the main idea of this passage?

A．Defective genes can never be repaired.

B．Genes are too small to be seen through a microscope.

C．Genes help scientists understand how living things develop their characteristics.

D．The Human Genome Project may explain the role of every gene in the body.

In 1752, three years after two Scotsmen, Alexander Wilson and Thomas Melville, fastened thermometers to kites to record the temperature of clouds, Benjamin Franklin made his famous experiment with a kite, a string, and a key. Franklin hoped to show that nature's tremendous displays of electricity in lightning were the same thing as the feeble electric sparks scientists of the day were producing in their laboratories. He built a square kite to which he attached an iron wire. He flew the kite with a hemp string(麻线), and near the base of the string he tied a large brass key. The kite rose into a dark thundercloud, where the iron wire picked up electrical charges. Franklin noticed that the strands of the string(绳串) were beginning to stand up with electricity. As rain wet the string, it conducted more electricity. Standing in the shelter of a shed, Franklin cautiously reached out his finger to touch the brass key. A series of sparks jumped from the key to his finger. He thus proved that lightning and electricity are the same. We now know that this experiment was a dangerous one, for Franklin might have been killed by a bolt of lighting.
The best title for this passage is ________.

A．The Discover of Electricity

B．The kite and Science

C．Franklin, a Great Scientist

D．Franklin's Experiment with Lightning

According to the passage, Benjamin Franklin ________.

A．recorded the temperature of clouds

B．was killed by a bolt of lightning

C．proved that lightning and electricity have the same essential nature

D．proved that lightning can be controlled by man

Two Scotsmen experimented with kites in ________.

A．1752	B．1746
C．1749	D．1755

Franklin did not use a ________.

A．string	B．wire
C．thermometer	D．key

The fact that Franklin was not injured was apparently due to ________.

A．wisdom	B．luck
C．the materials	D．the shed's protection

When he took office, George W. Bush, son of former president George Herbert Walker Bush, became the first son to follow his father into the White House since John Quiney Adams followed John Adams in the early 19th century.
Bush was born on July 6, 1946, in New Haven, Connecticut, the first child of George Herbert Walker Bush and Barbara Pierce Bush. Although George Herbert Walker Bush began his career in the oil industry, he finally served as a congressman(国会议员), and vice(副) president and president of the United States.
At the age of two, Bush moved with his parents from Connecticut to Odessa, Texas, where his father took up the oil business. After a year in Texas, the family moved to California for business reasons. A year later, the family returned to Texas and settled in Midland, where Bush lived from 1950 to 1959.
In 1959, again for business reasons, the family moved to Houston, Texas. In 1961 Bush left Texas and went to Andover, Massachusetts, to attend Phillips Academy, aboarding school(寄宿学校) that his father had also attended.
At Phillips, Bush played basketball, baseball, and football. He was best known for being head cheerleader. In 1964 he enrolled at Yale University in Connecticut.His father and grandfather had also attended Yale. At Yale, Bush was considered an average student, but he was popular with his classmates.
Bush graduated from Yale with a bachelor’s degree in history in 1968. Then he joined the Air National Guard and remained in the Guard until 1973. After earning his MBA from Harvard in 1975, Bush returned to Midland. Like his father, he first entered the oil industry as a “landsman(新手)”. However, Bush’s oil companies never enjoyed great success. He took more interest in politics. He helped his father to become president and in 1994 he himself was elected governor of Texas.
In the summer of 1999, Bush began to run for the president of the USA and on January 20, 2001, George W. Bush, hand raised, took the oath(宣誓) of office to become the 43rd president of the US.
What does the writer intend to tell us in the first paragraph?

A．George W. Bush is the first son in American history to follow his father into the White House.

B．George W. Bush is the first son of former president George Herbert Walker Bush.

C．George W. Bush is the second one in American history to follow his father into the White House.

D．John Quincy Adams and his father were both former American presidents.

We may learn from the text that young Bush ______.

A．got on very well at the universities

B．was very good at basketball, baseball and football

C．was a very successful politician like his father

D．did everything as his father had done

Which of the following is NOT true about George W. Bush?

A．He once studied at a university that his father and grandfather had also attended.

B．Young Bush lived with his family in Texas from 1948 to 1961.

C．He once ruled over an American state before he entered the White House.

D．He once served at the Air National Guard for about five years.

Geena David knew she wanted to be a movie star when she was very young. She was not sure what gave her the idea, but she wanted to look like a movie star. “I have a lot of pictures from my childhood of me wearing sunglasses,” she says. “I used to wear them to watch TV.”
Early movie actors started wearing sunglasses not because they looked good, but because their eyes hurt. The lights used on movie sets were extremely bright and could cause a painful problem known as “Klieg eyes”. It was named after the Klieg brothers who invented the lights. Actors wore sunglasses to give their eyes a rest. But when movie stars began wearing their sunglasses in public, they quickly became a must.
Eventually actors started wearing sunglasses in their movies as well as on the street. Audrey Hephburn wore ultra-cool Ray-Ban sunglasses in the 1961 movie, Breakfast at Tiffany’s. As a result, Ray-Ban sunglasses started to appear more and more in the movies. In 1979, Ray-Ban “Wayfarers” were worn by Jake and Elwood in The Blue Brothers. Tom Cruise wore Ray-Ban “Aviator” sunglasses in the 1986 hit, Top Gun. Then in 1997, Will Smith and Tommy Lee Jones made Ray-Ban “Predator” sunglasses famous in Men in Black.
Of course sunglasses aren’t just a fashion statement. The main reason to wear sunglasses is to protect our eyes against UV radiation. UV radiation can damage our eyes, so people now choose their sunglasses carefully. But you don’t have to give up style for safety. The choice of frames and lenses available these days is huge. So you can protect your eyes and still be the coolest person on the beach.
What is mainly discussed in this passage?

A．The use of sunglasses.

B．The history of sunglasses.

C．Why movie stars like to wear sunglasses.

D．The sunglasses wearing.

Why did Geena David like to wear sunglasses?

A．She wanted to follow a movie star.

B．She was a movie star.

C．Wearing sunglasses was good to her eyes.

D．It was good to wear sunglasses when watching TV.

Early actors’ eyes hurt because ______.

A．they wore sunglasses

B．they went out in the sun too much

C．their scripts were written in very small writing

D．the lights on movie sets were too bright

We may know from this passage that ______.

A．Ray-Ban is the name of sunglasses maker

B．Audrey Hephburn was a famous film star

C．Sunglasses made Top Gun the hit in 1986

D．Men in Black must be an advertisement of sunglasses

Now people wear sunglasses ______.

A．for fashion and to protect their eyes

B．just to protect their eyes

C．because of bright lights

D．because movie stars wear them

Welcome to Franklin Hotel. To make you stay as enjoyable as possible, we hope you will use our facilities(设施) to the full.
Dining Room: Breakfast is served in the dining room from 8 to 9:30 a.m. Also the room staff(服务员) may bring breakfast to your room at any time after 7 a.m. If this happens, please fill out a card and hang outside your door when you go to bed. Lunch is from 12 to 2:30 p. m. Dinner is from 7:30 to 9 p. m.
Room Service: This operates 24 hours a day; phone the Reception desk(总台), and your message will be passed on to the staff.
Telephones: To make a phone call, dial(拨) 0 for Reception and ask to be connected. We apologized for delays(拖延) if the lines are very busy. There are also public telephones near the Reception desk. Tell Reception if early calls are needed.
Shop: The hotel shop is open for presents, gifts and goods from 9 a. m. to 5:30 p. m.
Laundry : We have a laundry in the building, and will wash, iron(烫) and return your clothes within 24 hours, ask the room staff to collect them.
Bar(酒吧): The hotel bar is open from 12 to 2 p. m. and 7 p. m. to 1 a. m.
Banking : The Reception staff will cash cheques and exchange(兑换) any foreign money for you.
You would see this notice.

A．in a hotel bar

B．in a hotel dining room

C．in a bedroom of a large international hotel

D．at the entrance of a small family hotel

You have arrived at the hotel at 2 a. m. and want a quick meal. What should you do?

A．Go to the hotel shop.

B．Go to the hotel bar.

C．Hang a message outside your door.

D．Phone the Reception desk.

Your phone is powered off and the Reception desk is busy. The quickest way to make an urgent(紧急的) call is to.

A．go to your room and phone from there.

B．use one of the phones in the entrance hall

C．ask the Reception desk to help you

D．go out and look for a public phone box

The underlined word “laundry” (in Paragraph 6) probably means ________.

A．phone box	B．shopping centre
C．clothes shop	D．washhouse

The text tells us that .

A．the hotel offers at least seven kinds of services

B．it's too difficult to stay up in this hotel

C．you can shop at any time inside the hotel

D．you'll have trouble without the money of the country where the hotel lies

A．singing skills	B．social skills
C．English skills	D．computer skills