New Virus Details Show Challenges for Outbreak Control At first，scientists were relieved that the new virus，COVID-19，wasn't as dangerous as those that caused SARS，Ebola or some other recent infectious diseases.（1）GG.Here are some of the challenges.
Multiplying infections
According to the existing data，the infection rate for SARS is 3 while the ordinary flu's infection rate is about 1.1.Now，based on the first 425 confirmed COVID-19 cases，each infection led to 2.2 more infections on average.（2）DD.Yet we don't know whether the new virus is weakening or is still learning what it can do.
Varying incubation periods （潛伏期）
Scientists estimated（估計）the average incubation period was roughly five days，but said it could last up to two weeks.（3）CC.People can move away from where they got it and not even remember places where they may have been exposed.
Spreading in stealth
Another big worry is that one person with no symptoms can also infect others.On Thursday，scientists reported that a woman who was not ill at the time spread the virus to a man in Germany during a business trip there.（4）FF.
Testing gaps
（5）BB.At present，a few types of test kits（工具包）have been developed.But they are not accurate enough.Scientists are not sure how many false alarms or missed cases each might give at any point in time.That leaves a key gap.
Although scientists are still faced with so many challenges，they are confident that the new virus will be put under control soon.
A.More testing equipment should be provided at once.
B.It's still a struggle to determine who is or is not infected.
C.Such a long potential incubation period can be a problem.
D.The rate is a bit lower than SARS but much higher than ordinary flu.
E.That is a very low infection rate compared with that of SARS and Ebola.
F.Then he infected several other coworkers before showing any symptoms.
G.However，new details show how challenging it could be to control this outbreak.
【考點(diǎn)】人與自我．
【答案】G；D；C；F；B
【解答】
【點(diǎn)評】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/11/1 5:0:2組卷：13引用：1難度：0.5
相似題
-
1．Most smart phones allow you to run location-sharing software that uses the phone's GPS capability to let friends and family know your exact location．There are lots of great uses for this technology．（1）
So make sure you're permitted to use an app or service，and pay attention to how you are using it．Here're some important points you may find helpful．
Choose what's best for you．Some location-sharing services are games that let you give a shout-out when you've turned up at a particular spot．（2）Still others continue to share your location until you change the setting．Be sure you know exactly how your service shares your location．
Know who your friends are．（3）This means people can search to see if you're online and add you as a friend．It's important to remember that sharing your location with people you've never met in real life is risky，so you should carefully manage friend requests and share your location only with people you know and trust．
（4）Some services automatically stop sending your location after a period of time，but others will send it forever-until you stop it．Review your contact list periodically and delete anyone to whom you no longer feel comfortable revealing your location．
Update parents．Location-based services are a great way for teens to let parents know where they are without having to call or text．（5）If you're heading home late at night，you can also use a service like Glympse to share your location as you drive，so they'll know if you have car trouble or get stuck in traffic．A．Check back often．
B．Keep sending your location．
C．However，these services are not for all children．
D．With its help，you can easily share your location with them．
E．Check-ins ease worries so they don't have to follow your every move．
F．Others show where you are all the time or for a period of time you set．
G．Some location services operate like Facebook，where you invite and accept friends．發(fā)布：2025/1/1 18:0:1組卷：7引用：4難度：0.7 -
2．"Me".It's a small word with big meaning，and that meaning is as individual to each of us as the way we look.Through interviews，Dr Hart，a psychologist，was able to discover what "me" means to other people，and how they have learnt to（1 ）
the beauty in themselves.
Jade has become（2）to selfie apps to beautify herself.She spends hours every day （3）（ edit） her selfies，removing her freckles and enlarging her eyes so as to boost her （4）.Dr Hart says obsessive online photo editing indicates a（5）of self-confidence and a desire for attention.
In Anthony's case，things are different.He never cared about his （6）.He even wore identical trousers and shirts，which made his roommates （7）（ confuse ）.Dr Hart says it's true that inner beauty is very important but （8）beauty shouldn't be completely overlooked.
When it comes to Emma，she is （9）（ large ） than other girls，which bothered her.She tried every means possible to lose weight，which only resulted in pain and poor health，and finally she realized that her（10），mental and physical，is the most important thing.Dr Hart agrees with her一being healthy is beautiful.發(fā)布：2025/1/1 18:0:1組卷：8引用：2難度：0.5 -
3．Dear Laura，
Thanks for letting us to stay at your seaside house． Now， you might have heard from your neighbors about which happened on Saturday evening． When I was out a walk， my younger son， Tom， played football before your house． He made so many noise that the neighbors got quite angrily． Even worse， Tom broke one of the window of Mr． Wilson's house． Tom and I apologized to all the neighbors for the unhappy happenings， but promised to have the broken window repair soon． Tom said that we would not do such silly things any more． I am glad that your neighbors had forgiven us． They are really nice people．
Yours，
Betty發(fā)布：2025/1/30 8:0:1組卷：12引用：2難度：0.5