With the aid of the scientists, more new facts about the sea will _______ gradually.

A. bright to light     B.come to light       C. see through light  D. giveout light

With the aid of the scientists, more new facts about the sea will _______ gradually.
   A. bright to light     B.come to light       C. see through light   D. giveout light

With the aid of the scientists, more new facts about the sea will _______ gradually.

   A. bright to light     B. come to light       C. see through light   D. give out light

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.

1.What is mainly discussed in this passage?

   A. The use of sunglasses.     B. The history of sunglasses.

   C. The sunglasses wearing.   D. Why movie stars like to wear sunglasses.

2.Why did Geena David like to wear sunglasses?

A. She was a movie star.   

B. She wanted to follow a movie star.

C. Wearing sunglasses was good to her eyes.

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

3.Early actors’ eyes hurt because ______.

A. they wore sunglasses        

B. they went out in the sun too much

    C. the lights on movie sets were too bright

    D. their scripts were written in very small writing

4.Now people wear sunglasses ______.

    A. just to protect their eyes    B. for fashion and to protect their eyes

    C. because of bright lights      D. because movie stars wear them

American cities are similar to other cities around the world. In every country, cities reflect the values of the culture. American cities are changing, just as American society is changing.

　　After World War II, the population of most large American cities decreased; however, the population in many Sun Belt cities increased. Los Angeles and Houston are cities where population shifts(转移) to and from the city reflect the changing values of American society. In the late 1940s and early 1950s, city residents (居民) became wealthier. They had more children so they needed more space. They moved out of their apartments in the city to buy their own homes. They bought houses in the suburbs(郊区).

Now things are changing. The children of the people who left the cities in 1950s are now adults. Many, unlike their parents, want to live in the cities. They continue to move to Sun Belt cities and older ones of the Northeast and Midwest. Many young professionals are moving back into the city. They prefer the city to the suburbs because their jobs are there; or they just enjoy the excitement and possibilities that the city offers.

This population shift is bringing problems as well as benefits. Countless poor people must leave their apartments in the city because the owners want to sell the buildings or make apartments for sale instead of for rent. In the 1950s, many poor people did not have enough money to move to the suburbs; now many of these people do not have enough money to stay in the cities.

     Only a few years ago, people thought that the older American cities were dying. Some city residents now see a bright, new future .Others see only problems and conflicts. One thing is sure：many dying cities are alive again.

1.What does the author think of cities all over the world ?

   A. They are alive .    B. They are hopeless.   C. They are similar      D. They are different.

2.Why did American city residents want to live in the suburbs after World War Ⅱ?

   A. Because older American cities were dying.

   B. Because they were richer and needed more space.

   C. Because cities contained the worst parts of society.

   D. Because they could hardly afford to live in the city.

3.According to the 4^th paragragh, a great many poor people in American cities ______. 

   A. are faced with housing problems       B. are faced to move to the suburbs

   C. want to sell their buildings            D. need more money for daily expenses

4.We can conclude from the text that ______.

   A. American cities are changing for the worse   B. people have different views on American cities

   C. many people are now moving from American cities D. the population is decreasing in older American cities