An oral drug, named ERDRP-0519, was invented. It is specifically designed to protect people who got infected measles(麻疹) from spreading the virus to others. Like the flu, measles spreads through the air by breathing, coughing or sneezing. There is typically a time, about two weeks, between becoming infected with the virus and the beginning of symptoms like skin rash(皮疹), runny nose, heavy cough and high fever.
“This therapy application determines the desired characteristics of the drug, which are orally available, cost-effective manufacture and high stability,” Richard Klemperer, professor of Georgia State University, told reporters last Wednesday.
“With these criteria in mind, we have developed a small drug that blocks the measles virus over the past years, which is essential for copy of the virus.”
The researchers tested the drug in rats infected with canine distemper virus(犬瘟病) , which is a close relative of measles virus. They found that all of the infected rats treated with the drug survived the deadly infection, showed no clinical signs of disease and developed a strong protective immune response.
The drug could be used to treat friends, family and other social contacts of a person infected with measles virus, which have not developed symptoms yet but are at risk of having caught the disease, Klemperer said truthfully.
“The emergence of strong antiviral immunity(抗病毒免疫力) in treated animals is particularly encouraging, since it suggests that the drug may not only save an infected individual from disease but contribute to closing measles immunity gaps in a population,” Klemperer said.
The researchers emphasized the drug is not intended as a substitute for vaccination, but as an additional weapon to get rid of the measles. They planned to test the drug’s safety in larger animals, before moving into clinical trials in humans.
“If our next series of studies confirms that the human situation mirrors what we have seen in rats, then this drug may make a major contribution to getting rid of measles by preventing local outbreaks” Klemperer said.
Despite the existence of an effective vaccine, annual measles deaths worldwide have remained constant at around 150,000 since 2007. The reasons for this are the highly infectious nature of the virus, in the developing world largely due to issues of resources, and in many developed countries in particular in the European region due to parental concerns regarding vaccination safety.
1.If a boy got infected by measles virus, he might NOT show the symptom like ________.
A. runny nose B. bad cough
C. high fever D. sick stomach
2. From what Klemperer said, we know that the drug _________.
A. is only intended as a substitute for vaccination
B. can only save those infected individuals from disease
C. is cost-effective and high stability for curing measles
D. has the same effect on human as on larger animals
3.The best title of the passage is_________ .
A. the Introduction of a New Oral Drug
B. the Desired Characteristics of Drugs
C. the Common Symptoms of Getting Measles
D. the Application of Post-exposure Therapy
The Best Time to Visit Sydney
If you prefer the cold to heat, especially if seeking to escape the northern summer, the best time to visit Sydney could be in the Australian winter from June 1 to August 31.
The Sydney winter isn’t really harsh and the weather’s generally pleasant. It’s great for touring the city on foot and for bushwalking. And the ski slopes are not too far away.
Holiday time
You get the Queen’s Birthday holiday weekend in June and the school holidays in July. Aside from within those periods, accommodation costs in the city will generally be lower.
Winter weather
Expect generally cool conditions. The average temperature should range from around 8°C (46°F) at night to 16°C (61°F) in the daytime in mid-winter. Expect from 80mm to 131mm of rainin a month, with the most rain in June tapering into August.
Winter accommodation
Outside of the holiday periods, Sydney accommodation will usually be available and should be relatively cheaper.
Winter activities
The weather’s fine for a walking tour of Sydney. Visit The Rocks, the Sydney Opera House, the Royal Botanic Gardens, Art Gallery of New South Wales, Australian Museum, Hyde Park, Chinatown, Darling Harbour.
Go on a harbor cruise. At the very least, take a Sydney ferry and cross the harbor to Manly.
Take a daytrip north, south and west of Sydney.
Spot the whales as they travel north in the whale migration season.
Go bushwalking at the Royal National Park.
1. Considering weather and accommodation, the best time to visit Sydney is in ________.
A. June B. July C. August D. December
2. Which of the following activities is NOT recommended in the passage?
A. Going skiing near Sydney.
B. Hunting whales in the Royal Botanic Gardens.
C. Touring Sydney on foot.
D. Bushwalking at the Royal National Park.
完形填空
请认真阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
One of the most significant actions of your life is that you support someone when you help him or her through a challenging time. However, the best is that when you support others, you are also supporting yourself. When you to give support to others, it is usually a that you are also stopping giving support to yourself.
I was hooked on a story about Donna, which clearly showed the of support.
Several months ago, Donna had just broken up with her boyfriend and had a difficult time accepting the . She refused to be accompanied and stayed at home , weeping all the time ,which certainly was not helping.
Early one morning, Donna received a phone call with some news: her best friend’s brother had been in an accident. Donna had known this friend, Mary, and her brother her entire life, and the news was devastating. Donna her sadness and got the soon and drove to Mary’s house to be with her.
At the and afterwards, she held Mary close while she cried tears, sat by her side as the waves of grief Mary, and slept next to her to make sure she did not wake up alone. During that time she hardly felt any in her heart.
Several weeks later, when life began to return to normal, Donna that the level of support she had given Mary far overtook any support she had herself during her dark time. She was able to use the support she had given her friend as a for the support she needed.
When you find yourself to support others, see if there’s something within yourself that is not supporting. , when you give complete support to others, it’ll mirror those places within you that require the same level of attention.
1.A. policy B. part C. position D. pattern
2.A. refuse B. pretend C. start D. decide
3.A. sight B. signature C. sign D. signal
4.A. example B. power C. function D. definition
5.A. disaster B. truth C. divorce D. loss
6.A. quietly B. worriedly C. alone D. along
7.A. terrible B. amazing C. dangerous D. surprising
8.A. claimed B. killed C. injured D. caught
9.A. really B. barely C. exactly D. nearly
10.A. removed B. overcame C. recognized D. changed
11.A. door B. gate C. car D. bus
12.A. pray B. party C. funeral D. break
13.A. endless B. enough C. permanent D. consistent
14.A. ran over B. turned over C. washed over D. looked over
15.A. sadness B. horror C. panic D. thrill
16.A. recalled B. realized C. reminded D. remembered
17.A. presented B. provided C. favored D. offered
18.A. mirror B. candle C. challenge D. gift
19.A. incredible B. inadequate C. unable D. unlikely
20.A. In short B. In other words C. On the whole D. On the contrary
In spite of his ________ to be a scholar in that field, he is not well equipped with that talent.
A. potential B. competence
C. ambition D. character
I’m afraid there might have been 1000 audience in the concert last night, _____?
A. am not I B. aren’t I
C. mightn’t there D. weren’t there
_________ in the adult ceremony, the senior students feel they are shouldering heavier responsibilities now.
A. Swear B. Sworn
C. Having sworn D. To have sworn