With the US as a new destination for Chinese group tours, American tourism companies are   41   “cautious optimism” （谨慎的乐观） on their future prospects.  While most in the tourist industry look forward to growth in the number of Chinese tourists, they are also   42  about the high cost of holidays.  Compared with visits to Europe, travel to the US   43   a longer trip and results in higher costs---   44  with oil prices continuing to rise rapidly.  Many tourism insiders believe different tours should be  45  for different types of Chinese tourists.

       On June17 more than 200 Chinese tourists took off from airports in Beijing, Shanghai and Hong Kong in the first group tour of the US.  Yang Wei, a Beijing girl  46  from college, said she expects to see famous landmarks such as the US Capitol, the White House, the Pentagon and the Statue of Liberty.  “The group tour to the US has brought much convenience to the  47  Chinese people,” she said. “Otherwise I cannot imagine a young girl like me can get a visa to America so easily.”  The US  48  only student and business visas to Chinese in the past.  Shao Qiwei, director of China’s National Tourism Administration, said tourism promotes friendship and mutual understanding between the Chinese and American people.  “Not many Chinese people have been to the United States and vice versa,” he said. “Group tours connect the two nations to bring about mutual benefits,” Shao said.

       China’s first group received a warm welcome from the US government and tourism industry.  The Capitol in Washington, D.C．opened a special  49  for Chinese guests.  The US Department of Commerce invited them to visit the Bureau of Engraving and Printing, which prints US currency.  Commerce Secretary Carlos M. Gutierrez gave a dinner in their honor on a passenger ship.

There are some serious threats to the children’s health. The largest killer of children under age five is pneumonia(肺炎). This lung infection kills about two million children each year, mostly in developing countries.

In developed countries, most pneumonia cases are caused by viruses. But in the developing world, about sixty percent are caused by bacteria. These cases can be treated with antibiotic drugs(抗生素).

The World Health Organization currently says children with severe pneumonia should be admitted to a hospital and given injectable antibiotics. But many poor families do not have the money for a hospital or live too far away.

Now, new research could lead to a change in that advice. A study in Pakistan found that children with severe pneumonia can recover fully at home taking antibiotics by mouth. The study is in the Lancet medical journal.

The research involved two thousand children between three and five years old. Half received intravenous(静脉) antibiotics during a forty-eight-hour hospital stay. The others were sent home to take antibiotics for five days.

The treatment failed in eighty-seven children in the hospitalized group and seventy-seven in the home group. These children were then given another therapy.

During the study, five children died, four of them in the hospital group.

W.H.O. medical officer Shamim Qazi says the new findings will help children, families and hospitals. Children may get other infections in a hospital. Many hospitals are already overcrowded. And treatment at home would be less costly.

The study confirmed the findings of three other studies in Africa, Asia, Europe and Latin America. These showed that in hospitals, oral antibiotics were just as effective as injectable antibiotics in treating severe pneumonia in children.

A few cases are so severe they will still need hospital care. But Doctor Qazi says the W.H.O will be updating its guidelines this year with the new evidence. The W.H.O, of course, will be devoted to studying other killers to children all the time as well.

1．Why do some children cannot be sent to hospital and given inject able antibiotics?

  A．Because parents don’t want to spend much money on them.

  B．Because their disease is not serious enough.

  C．Because they live far away from hospitals.

  D．Because they don’t want to receive intravenous antibiotics.

2．Of all the children who received intravenous antibiotics in the research,         children died.

      A．0.4%            B．0.2%             C．0.25%           D．0.5%

3．The writer mainly wants to tell us        .

       A．home treatments work well on children with severs pneumonia

  B．the largest killer of children under age five is pneumonia

  C．what the advantage of treating pneumonia staying at home is

  D．how the research about pneumonia was carried out

4．Suppose the passage hasn’t ended, what might be most possibly talked about in the following part?

       A．The detailed information about the W.H.O’s updating its guidelines.

       B．The way to solve the problem that some hospitals are overcrowded.

  C．Another threat to children’s health, which W.H.O will deal with.

       D．The findings of three other studies in Africa, Asia, Europe and Latin America

Dan Bebber is a senior research fellow at the University of Exeter in Britain. He says research has shown that wild plants and animals are moving toward Earth's North and South poles as the planet warms.

Mr Bebber wanted to know if the same thing was happening with organisms that attack agricultural crops. He examined reports of first sightings of new insects and diseases around the world. The records came from CABI - the Centre for Agricultural Bioscience International. He says the group began collecting information from developing and industrialized countries years ago.

Dan Bebber and his research team studied 612 different organisms - from viruses and bacteria to insects like beetles and butterflies. They found that since 1960, crop pests and diseases have been moving toward the poles at an average rate of about 3 kilometers each year. Mr Bebber says this puts the most productive farmland in the world in danger.

"As new species of pests and diseases evolve and potentially the environment for them becomes more amenable at higher latitudes, the pressure on the breadbaskets of the world is going to increase."

Farmers face other threats. Invasive species passed through trade are also causing problems. Gene Kritsky is an Entomologist at the College of Mount St. Joseph in Ohio. He specialises in the study of insects. He says climate change may improve conditions for some invasive species.

“It means that species in other parts of the world that might do well in warmer temperatures can now do well in the breadbasket of America.”

Another Entomologist Christian Krupke of Purdue University says the effects of these changes will depend very much on the crop, the insect and the disease. But he says the research is a warning sign that people should care about climate change and do something about it.

1.The purpose of Dan Bebber’s research was to find ______.

A. if farmland could be moved to colder places thanks to global warming

B. if diseases and insects harmful to crops were going towards colder areas

C. if organisms were moving to the north and south poles

D. if the number of crop pests was increasing

2.According to Dan Bebber, if crop pests keep moving towards the poles, ______.

A. it will be hard for farmers to kill them

B. the most productive farmland will produce more crops

C. the earth will not produce enough food to support the world

D. the conditions for some crops may be improved

3.Which of the following is not a threat that farmers have to face?

A. Climate change helps crop pests to adapt to new environment.

B. Foreign species are brought in by trade.

C. Invasive species doing well in warmer places might do well in America.

D. The impacts of the climate and species changes on crops are not easy to determine.

4.The underlined word “amenable” in the fourth paragraph most probably means ______.

A. agreeable     B. terrible      C. unfriendly     D. changeable 

      to be the best one in the group, she had an opportunity to enter for the final competition.

A．Judging           B．To Judge          C．Having judged      D．Judged

Students who date (约会）in middle school have significantly worse study skills, are four times more likely to drop out of school and report twice as much alcohol and tobacco use than their single classmates, according to new research from the University of Georgia.

"Romantic relationships are a trademark of adolescence, but very few studies have examined how adolescents differ in the development of these relationships," said Pamela Orpinas, study author and professor in the College of Public Health and head of the Department of Health Promotion and Behavior.

Orpinas followed a group of 624 students over a seven-year period from 6th to 12th grade.

Each year, the group of students completed a survey indicating whether they had dated and reported the frequency of different behaviors, including the use of drugs and alcohol. Their teachers completed questionnaires (调查表）about the students* academic efforts. He found some students never or hardly ever reported dating from middle to high school, and these students had consistently the best study skills according to their teachers. Other students dated infrequently in middle school but increased the frequency of dating in high school.

"At all points in time, teachers rated the students who reported the lowest frequency of dating as having the best study skills and the students with the highest dating as having the worst study skills,” according to the journal article. Study skills refer to behaviors that lead to academic success such as doing work for extra credit，being well organized, finishing homework, working hard and reading assigned chapters.

"Dating a classmate may have the same emotional complications of dating a co-worker," Orpinas said, "when the couple break up. they have to continue to see each other in class and perhaps witness the ex-partner dating someone else. It is reasonable to think this could be linked to depression and divert (转移）attention from studying.”

Dating should not be considered a ceremony of growth in middle school，”Orpinas concluded.

1.When doing his study, Orpinas_____.

A．followed a group of students of 6th and 12th grade

B．completed a survey and a report each year

C．completed questionnaires about the students’ academic efforts

D．found that the students’ study skills have connection with their frequency of dating

2.Study skills may include the following behaviors and qualities Except_____

A．being diligent                          B．being well organized

C．being kind and helpful                    D．finishing assigned schoolwork

3.What can possibly happen to the school couples after they break up?

A．They don’t want to see each other any longer.

B．Their attention to studying will be affected.

C．They will miss their ex-partners sometimes

D．They will think it’s reasonable to get depressed.

4.Orpinas’attitude towards dating in middle school is_____

A．supportive         B．positive           C．negative          D．indifferent