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 |
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
HOLIDAY FUN AT THE POWERHOUSE
500 HARRIS STREET
ULTIMO ·TELEPHONE (02)9270111
Join in the holiday fun at the powerhouse this month linked to our new exhibition, Evolution & Revolution: Chinese dress 1700s to now．DON’T FORGET our other special event, the Club Med Circus School which is part of the Circus（马戏团）！150 years of circus in Australia exhibition experience!
◆Chinese Folk Dancing: Colorful Chinese dance and musical performances by The Chinese Folk Dancing School of Sydney．Dances include: the Golden and the Chinese drum dance．A feature will be the Qin dynasty Emperor’s count dance．Also included is a show of face painting for Beijing opera performances．
Sunday June29 and Wednesday July2 in the Turbine Hall, at 11:30 a．m．& 1:30 p．m．
◆Australian Chinese Children’s Arts Theatre: Well known children’s play experts from Shanghai lead this dynamic youth group．Performances include Chinese fairy tales and plays．
Thursday 3 to Sunday 6 July in the Turbine Hall, at 11:30 a．m．& 1:30 p．m．
◆Chinese Youth League: A traditional performing arts group featuring performance highlights such as Red scarf and Spring flower dances, and a musician playing Er Hu．
Sunday 6 to Tuesday 8 July in the Turbine Hall．11:30 a．m．to 1:30 p．m．
◆Kids Activity: Make a Paper Horse: Young children make a paper horse cut out．(The horse is a frequent theme in Chinese painting, including a kind of advancement．) Suitable for ages 82 years．
Sunday 28 June to Tuesday 8 July in the Turbine Hall．12:00 p．m．to 1:00 p．m．
◆Club Med Circus School: Learn circus skills, including the trapeze, trampolining and magic．Note only for children over 5．There are 40 places available in each 1 hour session and these must be booked at the front desk, level 4, on the day．
Tuesday 1 to Saturday 5 July at 11:30 a．m．& 1:00 p．m．
Enjoy unlimited free visits and many other benefits by becoming a Family member of the Powerhouse．Our family memberships cover two adults and all children under the age of 16 years at the one address．
All this for as little as $50．00 a year! Call (02)92170600 for more details．When can you watch the Chinese drum dance?
| A．On July 2． | B．On July 3． |
| C．On July 6． | D．On July 8． |
To learn the magic tricks, you can go to ____________．
| A．Kids Activity． |
| B．Chinese Youth League． |
| C．Club Med Circus School． |
| D．Children’s Arts Theatre． |
What is required if you want to enjoy free visits to the Museum?
| A．Calling (02)92170600． |
| B．Gaining family membership． |
| C．Coming for the holiday fun． |
| D．Paying Powerline $50．00 a year． |
What is the main purpose of the text?
| A．To attract visitors． |
| B．To present schedules． |
| C．To report the performances． |
| D．To teach kids Chinese arts． |
Security—for the information on your smartphone, as well as for the phone itself is a hot topic these days．The truth is that you’re packing a lot of sensitive information on your phone, and you should keep it safe．
When it comes to physical security, iPhone users would do well to download Find My iPhone, a free app from Apple that allows you to visit a website and see your (lost, stolen or misplaced) phone on the map．You can then sound an alarm, send a message that will pop up on its screen, lock the phone or erase all your data．
Android does not have an exact equivalent(等价物), but there are plenty of alternatives．A free app called Lookout offers the find my phone feature．The paid version allows you to wipe the data from your phone remotely．
Then there is your coffee shop’s WiFi network．Anyone with minimal technical expert skill can snoop on(窥视) people using shared wireless networks, harvesting passwords and other personal data．Lookout’s apps will caution you when you’ve logged on to an insecure network, but cannot protect you once you’re there．
In order to protect yourself on such networks, you can use a virtual private network, or V．P．N．This turns all your activity into nonsense to anyone trying to read along with you from across the Starbucks．It also keeps websites from tracking you and, if you’re traveling, allows you to get access to sites that may be blocked in other countries．
If you have an iPhone, the simplest V．P．N．app is probably Hotspot Shield, whose distinguishing feature is said to be that it automatically kicks in each time you start browsing (浏览), as opposed to other V．P．N．apps that require you to start them up manually(手动)．This matters, because even if you decide you want a V．P．N．app, you want to spend approximately zero time thinking about it．For the most part, that was true of Hotspot Shield, though occasionally it took a while to connect or temporarily lost connection without warning．I found myself having to turn the app on and off sometimes, which involved setting my phone constantly．
If even reading about the setting on your phone drives you crazy, then it is probably best to stay away from a V．P．N．app．But if you’re the type who can’t resist checking your bank balance from your comer bar, the hassle (麻烦) may be preferable to the risk．Which of the following can warn you against the insecure network?
| A．Android |
| B．V．P．N． |
| C．Lookout |
| D．Find My iPhone |
By using V．P．N．, users can ________．
| A．find their lost phone on the Internet |
| B．remove all the data form the phone remotely |
| C．check the bank balance now and then |
| D．save their browsing from being tracked |
The underlined word “that” in Para．6 refers to the fact that _________．
| A．a V．P．N．app kicks in automatically |
| B．the users starts V．P．N．apps manually |
| C．the app take a while to connect |
| D．users spend no time thinking about it |
One evening last summer, when I asked my 14 year old son, Ray, for help with dinner, his response shocked me．"What’s a colander(漏勺)? " he asked．
I could only blame myself．In the family, nobody else’s hands went in the sauce except my own．But that night, as I explained with a touch of panic that a colander is the thing with holes in it, I wondered what else I hadn’t prepared Ray for．
As parents, while we focus on our sons’ confidence and character, we perhaps don’t always consider that we are also raising someone’s future roommates, boyfriends, husbands, or fathers．I wanted to know that I’d raised a boy who would never ask the woman in his life, "What’s for dinner?" So I came up with a plan: I would offer Ray a private home economics course．I was delighted to find that he didn’t say no．For two hours, three days a week, Ray was all mine．One day, as his tomato sauce reduced on the stove, he washed and seasoned a chicken for roasting．Then he rolled out the piecrust (馅饼皮) and filled it with apples, all while listening to my explanation on the importance of preheating an oven．
I knew that he would rather have been shooting hoops in the driveway than learning to mend socks with his mother—he tried to beg off sewing lessons, even though I insisted that one day, someone would find the sight of him fixing his own shirt very attractive— but it couldn’t be denied that he was learning, and more than just housekeeping．"I appreciate what you do as a mom," he told me one day．Ray now understands the finer points of cooking, and more importantly, he realizes there’s nothing masculine (男子气概的) about being helpless．
Now, not only can he make his own dinner, but also he can make a big meal for his family．That’s what I call a man．I’m glad that I prepared so great a present for my future daughter in law．Why was the author shocked at her son’s response?
| A．Because he was not well behaved． |
| B．Because he refused to help with dinner． |
| C．Because he didn’t know the common kitchen tools． |
| D．Because he was very curious about kitchen tools． |
In the author’s opinion, some parents pay little attention to _______．
| A．building up children’s confidence |
| B．telling kids what is right and wrong |
| C．preparing children for their future life |
| D．making children live a hard life |
After learning to do housework, Ray _______．
| A．fell in love with sewing |
| B．did other work in the house |
| C．began to be more hardworking |
| D．acknowledged his mother’s efforts |
We can infer from the text that Ray _______．
| A．made great progress in cooking． |
| B．always thought housework interesting． |
| C．preferred sewing to cooking． |
| D．was unwilling to learn cooking at first． |
What would be the best title for the text?
| A．Useful education for boys |
| B．The importance of housework |
| C．Boys should be involved in housework． |
| D．Cooking and sewing make boys masculine． |
D
“Beauty is only skin deep." This expression means that beauty is only a temporary surface quality. Some beauty products can cause lasting damage that goes far below the surface of the skin.
In America，many people use sunlight and non-natural light to darken their skin. Health experts advise against what is called“tanning”because of its links to akin cancer. In the African country of Senegal（塞内加尔），some women take health risks trying to do just the opposite.
An average beauty supply shop in Dakar has many kinds of skin-lightening creams and soaps. The World Health Organization says that 25％of Senegalese women use skin-lightening production a usual basis. These products can contain chemicals，like mercury（汞），hydroquinone（对苯二酚），etc. These are dangerous ingredients that can cause cancer and possibly other physical damage to the akin. They can actually burn the eyes and skin.
Shop worker Adama Diagne advises her visitors to avoid the stronger products that promise fast results. She users a cream that is made from carrots，not the strong chemical，hydroquinone. She says that it is a personal choice and that no one pressures her. Some women want to be black every day，but for her，she likes to be a shade of brown.
Women in Senegal say they lighten their skin for the same reason that women all over the world make changes to their appearance. They say they want to look beautiful，to find a husband， to stand out in a crowd or simply to look great for a special event.
This thinking troubles Senegalese film-maker Khardiata Pouye Sall. So，she made“This Color That Bothers Me"，a film about the subject of skin lightening. She said，“I used the most shocking images so that women would see the dangers. It is hard to understand why a woman says that dark skin is not beautiful. It is in their heads. They want to please a man，to he loved or they want to please society，to succeed."
Ms. Sall says that the government needs to better control the marketing and the sale of skin-lightening products. But she adds that education is the best way to persuade people against using them.The underlined part“the opposite" in Paragraph 2 means some Senegalese women ．
| A．use sunlight to darken their skin |
| B．try creams to prevent skin cancer |
| C．use products to lighten their skin |
| D．take health risks to become beautiful |
According to Adama Diagne，women shouldn't believe ·
| A．beauty is just a personal choice |
| B．a cream from carrots is healthier |
| C．it is beautiful to be black every day |
| D．a product can make you beautiful quickly |
We can infer that women in Senegal ．
| A．attract attention with shockingimages |
| B．don't consider dark skin to be beautiful |
| C．find it hard to understand the true beauty |
| D．put beauty in the first place in their heads |
What is Sall's attitude towards skin-lightening products?
| A．Unsupportive. | B．Casual. |
| C．Responsible. | D．Positive. |
C
The year of 2014 saw smart people always busy inventing useful things，which have helped to make the world better，smarter and a little more fun. Now，let's take a look at some of the inventions.
Super banana
Australian biogeneticist（生物遗传学家）James Dale
visited Uganda，a poor African country，in the early 2000s， where he found that 15％-30% of children under 5 were at the risk of going blind because they didn't get enough vitamin A. Dale also learned that people there love bananas. They eat 3 to 11 bananas a day. So hecame up with an idea to plant bananas containing added nutrition in order to improve Ugandans' health ．With the help of Bill Gates' foundation，Dale developed the“super banana，’·He added a gene to the fruit，making it rich in vitamin A.
Which of the following statements would James Dale agree with?
| A．Children in Uganda should eat fewer bananas. |
| B．Vitamin A is largely found in fruits like bananas. |
| C．Super bananas are definitely a safe biological product. |
| D．People's eating habits can be used to develop new food. |
What is the biggest advantage of the 94Fifty Basketball?
| A．The sensors hidden inside can help players run faster in a game. |
| B．It can help players to improve their shooting and ball-handling skills. |
| C．It allows players to connect to their smartphones while playing basketball. |
| D．The Bluetooth chip inside allows its users to listen to music while playing basketball. |
What can we learn about the hovercraft from the text?
| A．It enables its users to float off the ground freely. |
| B．It can work on many different kinds of surfaces. |
| C．It still needs to improve its power and efficiency. |
| D．It is an affordable means of transport for a family. |
What do the hovercraft and wireless electricity have in common according to the text?
| A．They create magnetic fields to produce power. |
| B．They apply technologies to many things in life. |
| C．They are technologies which can produce electricity. |
| D．They use wireless technology to improve their products. |