A.canoeing                     
B.          cap                        
C.appeal                    
D.penalty

I. Read the passage carefully and choose the correct answer.
Plants and animals hold medicinal, agricultural, ecological value. Endangered species must be protected and saved so that future generations can experience their presence and value.
Plants and animals are responsible for a variety of useful medications. In fact, about forty percent of all prescriptions written today are composed from the natural compounds of different species. These species not only save lives, but they contribute to a prospering pharmaceutical industry worth over $40 billion annually. Unfortunately, only 5% of known plant species have been screened for their medicinal values, although we continue to lose up to 100 species daily. The Pacific yew, a slow-growing tree found in the ancient forests of the Pacific Northwest, was historically considered a "trash" tree. However, a substance in its bark was recently identified as one of the most promising treatments for ovarian and breast cancer. Additionally, more than 3 million American heart disease sufferers would die within 72 hours of a heart attack without digitalis, a drug derived from the purple foxglove.
There are an estimated 80,000 edible plants in the world. Humans depend upon only 20 species of these plants, such as wheat and corn, to provide 90% of the world's food. Wild relatives of these common crops contain essential disease-resistant material. They also provide humans with the means to develop new crops that can grow in inadequate lands such as in poor soils or drought-stricken areas to help solve the world hunger problem. In the 1970s, genetic material from a wild corn species in Mexico was used to stop a leaf fungus that had previously wiped out 15% of the U.S. corn crop.
Plant and animal species are the foundation of healthy ecosystems. Humans depend on ecosystems such as coastal estuaries, prairie grasslands, and ancient forests to purify their air, clean their water, and supply them with food. When species become endangered, it is an indicator that the health of these vital ecosystems is beginning to unravel. The U.S. Fish and Wildlife Service estimates that losing one plant species can trigger the loss of up to 30 other insect, plant and higher animal species. The northern spotted owl, listed as threatened in 1990, is an indicator of the declining health of the ancient forests of the Pacific Northwest. These forests are the home to over 100 other old-growth dependent species, which are at risk due to decades of unsustainable forest management practices. Pollution off the coast of Florida is killing the coral reefs along the Florida Keys, which serve as habitat for hundreds of species of fish. Commercial fish species have begun to decline, causing a threat to the multi-million dollar tourism industry, which depends on the quality of the environment.
Which sentence is true?
A.The coast of Florida does not suffer any pollution.
B.The loss of one species may lead to the loss of others.
C.Humans do not depend on ecosystem.
D.Unsustainable forest management practices have no effects on species.

His career in the illicit drug trade ended with the police raid this morning.
A.elicited     
B. irregular 
C.secret 
D. legal

________(37)
A.cheerful
B.contented
C.hopeful
D.relaxed

The house is dirty because no one bothers to keep it clean. (trouble)
A.The house is dirty because no one has taken the trouble to keep it clean.
B.The house is dirty because no one has the trouble to keep it clean.
C.The house is dirty because of no one takes the trouble to keep it clean.
D.The house is dirty because no one takes the trouble to keep it clean.

My sister _____ for you since yesterday.
A.is looking
B.was looking
C.has been looking 
D.looked

I had a __________, which I couldn't explain, that something terrible was going to happen.  
A.feeling  
B.view  
C. sense        
D.thought

His roommate (always enter) ______ the room without knocking first, which annoys him a lot.
A.always enters
B.is always entering
C.has always enterd
D.will always enter

Read the passage carefully, then choose the correct answers.
   THE OLYMPIC GAMES
During the Olympic games, people from all over the world come together in peace and friendship. Some of these people compete for medals. Several million people attend the games, and millions of other people watch them on television.
Why do we have the Olympic games? How did they begin? The first Olympic Games that we have records of were inGreecein 776 BC. The games lasted one day. The only event in the first thirteen Olympic Games was a race. Men ran the length of the stadium (about 192 meters). Then, longer running races were added. Through the years, a few other kinds of events, like the long jump, were also added. During this time, the games were for men only, and women could not even watch them. In the year 393, a Roman emperor ended the Olympic Games because the quality of the games became very low. The Olympics did not take place again for 1500 years!
In 1894, Pierre de Courbertin ofFrancehelped form the International Olympic Committee, and the modern Olympic Games began. In 1896 the games were held again inAthens,Greece. The Greeks built a new stadium for the competition. Three hundred and eleven athletes from thirteen countries competed in many events. The winners became national heroes.
After 1896, the games were held every four years during the summer in different cities around the world. In 1900, the Olympics were inParis,France, and women competed for the first time. In 1908, inLondon,England, the first gold medals were given to winning athletes. Before that time, the winners received only silver and bronze. medals.
The Olympic flag was first introduced in 1920 inAntwerp,Belgium. The flag has five rings on it. The rings represent the continents of Africa, Asia,Australia, Europe, and North andSouth America. Each ring is a different color blue, yellow, black, green, or red - because the flag of each of the countries that compete in the games has at least one of these colors in it.
The Olympic Winter Games began in 1924 inChamois,France. Athletes competed in winter events such as skiing, ice skating, and ice hockey. Today, the Winter Games take place every four years. The Summer Games also take place every four years, but not. in the same year as the winter events. Both the Summer Games and the Winter Games must have at least fifteen events, and they cannot last more than sixteen days.
Until recently, Olympic competitors could not be professional athletes. All of the athletes in the Olympic Games were amateurs. Today, however, many of the Olympic athletes are professionals who play their sports for money during the year. Some people disagree with this idea. They believe that the Olympic Games are for amateur athletes, not paid professionals. Other people think that anyone can play in the Olympic Games. No matter who the athletes are, millions of people throughout the world enjoy watching the greatest athletic competitions, the Summer games and the Winter Games of the Olympics.
According to the passage, _____________.
 
A.the participation of professionals has made the Olympic Games less enjoyable
B.no matter who athletes are, the games are still great to watch for millions of people
C.professional athletes will soon be banned from the Games
D.everyone is opposed to allowing professionals to take part

_________(41)
A.released
B.sent
C.posted
D.mounted