Controlling the Ebola virus outbreak at the source in West Africa is the most effective way to decrease international risk of transmission, according to a research paper.
If the epidemic(时疫) persists and grows, it's likely there will be more cases(病例) of the deadly virus exported to other countries, including Canada, via air travel, said Dr. Kamran Khan, a physician and researcher at St. Michael's Hospital.
Dr. Khan, who examines global airline travel patterns to predict the spread of diseases, said that every month, three Ebola-infected travellers are likely to leave West Africa, which is experiencing a widespread outbreak of the virus -- and this number would only increase as the epidemic grows.
Dr. Khan and his co-authors said it is essential that other countries, their public health agencies and hospitals should be prepared. The risk of international spread would be further _____ if this epidemic were to take hold in other countries, especially those with weak public health systems.
"The international community must be mindful and be ready to support the early detection and control of cases." Dr. Khan said.
Dr. Khan noted that of the almost 500,000 travellers who flew on commercial flights out of Guinea, Liberia or Sierra Leone in 2013, more than half were headed to destinations in five countries: Ghana (17.5 per cent, Senegal (14.4 per cent), the United Kingdom (8.7 per cent, France (7.1 per cent) and Gambia (6.8 per cent). More than 60 per cent of travellers from those countries in 2014 are expected to have final destinations in low- or lower-middle income countries.
"Given that these countries have limited medical and public health resources, they may have difficulty quickly identifying and effectively responding to imported Ebola cases”, said Dr Khan.How does Dr. Khan predict the spread of diseases?
| A．By doing experiments |
| B．By examining global airline travel patterns |
| C．By setting up a model |
| D．By collecting the data of the cases |
We can fill in the blank in Paragraph 4 with _____.
| A．decreased | B．increased |
| C．avoided | D．predicted |
In low income countries, ______.
| A．it is easy to identify imported Ebola cases |
| B．people have rich medical resources |
| C．imported Ebola cases may not be effectively responded to |
| D．travelers are not allowed to go to some places |
The first newspapers were written by hand and put up on walls in public place. The earliest daily newspaper was started in Rome in 59 BC. In the 700’s the world’s first printed newspaper was published. Europe didn’t have a regularly published newspaper until 1609, when one was started in Germany.
The first regularly published newspaper in the English language was printed in Amsterdam in 1620. In 1621, an English newspaper was started in London and was published once a week. The first daily English newspaper was the Daily Courant (每日新闻). It came out in March 1702.
In 1690, Benjamin Harris printed the first American newspaper in Boston. But not long after it was first published, the government stopped the paper. In 1704, John Campbell started The Boston Newsletter (波士顿新闻通讯), the first newspaper published in the American colonies. By 1760, the colonies had more than thirty daily newspapers. There are now about 1,800 daily papers in the United States.
Today, as a group, English language newspapers have the largest circulation (发行量) in the world. But the largest circulation for a newspaper is that of the Japanese newspaper Asahi Dhimbun (朝日新闻).It sells more than 11 million copies every day.The first daily newspaper came out in _____.
| A．59 BC | B．700’s | C．1609 | D．1620 |
The first regular published newspaper in Europe was printed in _____.
| A．England | B．Germany | C．France | D．Sweden |
The first printed newspaper in America came out in _____.
| A．Washington | B．New York | C．Boston | D．New Orleans |
Today there are about _____ daily newspaper printed in the United States.
| A．1621 | B．1704 | C．1760 | D．1800 |
Which is NOT true according to the passage?
| A．The first regularly published newspaper in the English language was printed in Amsterdam. |
| B．English language newspaper sells more than 11 million copies every day. |
| C．Europe didn’t have a regularly published newspaper in 1608. |
| D．The first daily English newspaper came out in March 1702. |
Have you wondered why different animals or pests have their particular colors? Colors in them seem to be used mainly to protect themselves.
Birds, especially seagulls are very fond of locusts, but birds can’t easily catch locusts because locusts change their colors together with the change of the color of crops. When crops are green, locusts look green. But when crops are ripe, locusts take on exactly the same brown color as crops have. Some other pests with different colors from plants are usually easily found and eaten by their enemies. So they have to hide themselves in terror for lives and appear only at night.
If you study the animal life in any part of the world, you will find the main use of coloring is to protect themselves, bears, wolves and other beasts move quietly through forests. They are usually invisible to the eyes of hunters, because they have the color much like the barks(树皮) of trees.
An even more strange act remains to be noticed. A kind of fish living in seas can send out a kind of very black liquid when it faces danger. While the liquid is over, its enemies cannot find it, and it quickly swims away. Thus, it has existed up to now though it is not powerful at all.This passage mainly talks about ______.
| A．the change of color in locusts |
| B．the protective coloration of animals and pests |
| C．how a certain sea fish protects itself |
| D．animals or pests can dye themselves different colors |
Locusts are ______ but they aren’t easily wiped out(消灭)by their enemies because _______.
| A．animals; they are powerful enough |
| B．beasts; they are dangerous to their enemies |
| C．pests; they take on the same colors as crops |
| D．birds; they fly very fast |
What does the underlined word “invisible” in Paragraph 3 mean?
| A．can’t be seen | B．can be seen | C．can’t move | D．can’t change |
The laptop is a machine which can be a mobile office；it can be used to entertain us and people can play computer games on them. One machine can perform many tasks at the same time. As technology grows，the size of the new laptop machines is decreasing. Now laptops are lighter，have smaller screen sizes，and perform better. Smaller screen laptops，which are more convenient to take along with，have been specially designed for professionals. Huge display screen laptops are still used by graphic(绘画的)designers and those who like playing computer games.
Laptops are advanced machines，and they can be very expensive. When we spend much money on something，we should take good care of it. I know some people who buy a new laptop every year. The reason they do this is that the old one either is broken or has some problems which cannot be fixed. Common problems are the breaking of the screen，the breaking of joints of the laptop，display problems，and keyboard problems.
Different problems will always come up with machines，and they cannot be avoided(避免)．Old machines will always have to be replaced by new ones. However，if we are more careful and handle our laptops with care，they will last for a longer period of time，and they will perform better. This is not a hard thing to do，but it will greatly increase the life and performance of laptops.According to the first paragraph，the laptop is a machine which________.
| A．is being used by more and more people in the office |
| B．will take the place of desktops sooner or later |
| C．is specially designed for people who like playing computer games |
| D．can be used for both work and entertainment purposes |
The underlined word in the first paragraph means “________”．
| A．becoming smaller |
| B．becoming more important |
| C．becoming more popular |
| D．becoming better |
We infer that graphic designers still use huge display screen laptops most probably because________.
| A．huge display screen laptops are very cheap |
| B．small display screen laptops are not on sale yet |
| C．they can see their drawings more clearly |
| D．they also want to play computer games |
What can we learn from the second paragraph?
| A．That laptops can only be used for one year. |
| B．That laptops are not as good as desktops. |
| C．That the prices for laptops are too high. |
| D．That laptops may have problems which cannot be fixed. |
Welcome to our school. You can do a lot of things here. Come and join us.
| Timetable | |
| Sunday8:30---11:30 Personal Inventions You can see many inventions by the students; you may also bring your own inventions. |
Monday19:00---21:00 Space and Man Dr. Thomas West If you want to know more about the universe. |
| Wednesday 19:30---21:00 Modern Medicine Mrs. Lucy Green Would you like to know medical science? |
Friday18:30---21:00 Computer Science Mr. Harry Morison from Harvard University Learn to use Windows XP. |
You may have a chance to introduce your inventions on _________.
| A．Sunday | B．Monday | C．Wednesday | D．Friday |
The person who teaches Computer Science is from___________.
| A．Canada | B．Australia | C．New Zealand | D．America |
You may learn something about a disease called TB from __________.
| A．Dr. West | B．Mr. Morison | C．Mrs. Green | D．Mr. Thomas |
If you want to learn something about satellites, you can go to the class from______.
| A．8:30 to 11:30 on Sunday |
| B．19:00 to 21:00 on Monday |
| C．19:30 to 21:00 on Wednesday |
| D．18:30 to 21:00 on Friday |
When Ben Franklin was very only a boy, he always wanted to know about things. He was always asking his father and brothers “What?” and “How?” and “Why?”
They couldn’t always tell him what he wanted to know.
When they couldn’t tell him, Ben tried to find out for himself.
Many times Ben did find out things that no one knew before. The other boys would say, “That’s Ben Franklin! He’s always finding out something new! ”
Ben lived close to the water. He liked to go there to see the boats. He saw how the wind blew them across the water.
One day Ben said to himself, “Why can’t the wind help me float across the water? And I’m going to try.” Ben got his big kite. He took hold of the kite string and ran with it. The wind took the kite up into the air. Then Ben jumped into the water.
The wind blew the kite high into the air. Ben began to float across the water. Soon he was on the other side, and he had not worked at all.
One boy shouted, “Look at Ben floating across the water! His kite takes him to the other side without any work!”
“Yes”, said another. “He’s always finding new ways to do things.”When he was only a child, Ben _____.
| A．liked to fly a kite by himself |
| B．always asked easy questions |
| C．always liked to play with water |
| D．always liked to find out how things worked |
His father and brothers _____.
| A．couldn’t answer all his questions |
| B．could answer all his questions |
| C．tried hard to find out something new for him |
| D．were too busy to answer his questions |
How did Ben Franklin float across the water?
| A．The other boy took him across it. |
| B．The water carried him across it. |
| C．The flying kite took him across it. |
| D．A boat took him across it. |
He found out many things that ____.
| A．children didn’t know |
| B．his father and brothers knew |
| C．people didn’t know |
| D．most people knew |