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981．An increase in cars has resulted in the d
（減少；下降） of public transport.發(fā)布：2024/5/23 20:38:36組卷：8引用：2難度：0.7982．People have different ways of dealing with a common cold.Some take over the counter medicines such as aspirin while others try popular home remedies（治療） like herbal tea or chicken soup.Yet here is the tough truth about the common cold：nothing really cures it.
So why do people sometimes believe that their remedies work？According to James Taylor，professor at the University of Washington，colds usually go away on their own in about a week，improving a little each day after symptoms peak，so it's easy to believe it's medicine rather than time that deserves the credit，USA Today reported.
It still seems hard to believe that we can deal with more serious diseases yet are powerless against something so common as a cold.Recently，scientists came closer to figure out why.To understand it，you first need to know how antiviral drugs work.They attack the virus by attaching to and changing the surface structures of the virus.To do that，the drug must fit and lock into the virus like the right piece of a jigsaw（拼圖），which means scientists have to identify the virus and build a 3 D model to study its surface before they can design an antiviral drug that is effective enough.
The two cold viruses that scientists had long known about were rhinovirus（鼻病毒） A and B.But they didn't find out about the existence of a third virus，rhinovirus C，until 2006.All three of them contribute to the common cold，but drugs that work well against rhinovirus A and B have little effect when used against rhinovirus C.
''This explains most of the previous failures of drug trials against rhinoviruses，" study leader Professor Ann C.Palmenberg at the University of Wiscons in Madison，US，told Science Daily.
Now，more than 10 years after the discovery of rhinovirus C，scientists have finally built a highly detailed 3 D model of the virus，showing that the surface of the virus is，as expected，different from that of other cold viruses.
With the model in hand，hopefully a real cure for a common cold is on its way.Soon，we may no longer have to waste our money on medicines that don't really work.
（1）What does the author think of popular remedies for a common cold？
A．They are quite effective.
B．They are slightly helpful.
C．They actually have no effect.
D．They still need to be improved.
（2）How do antiviral drugs work？
A．By breaking up cold viruses directly.
B．By changing the surface structures of the cold viruses.
C．By preventing colds from developing into serious diseases.
D．By absorbing different kinds of cold viruses at the same time.
（3）What can we infer from the passage？
A．The surface of cold viruses looks quite similar.
B．Scientists have already found a cure for the common cold.
C．Scientists were not aware of the existence of rhinovirus C until recently.
D．Knowing the structure of cold viruses is the key to developing an effective cure.
（4）What is the best title for this passage？
A．Drugs against cold viruses
B．Helpful home remedies
C．No current cure for common cold
D．Research on cold viruses發(fā)布：2024/5/23 20:38:36組卷：7引用：1難度：0.5983．It has a
of three lines.
它的格式是三行。發(fā)布：2024/5/23 20:38:36組卷：0引用：2難度：0.7984．This is an opportunity to e
the reputation of the country.發(fā)布：2024/5/23 20:38:36組卷：1引用：2難度：0.7985．寫出劃線短語的漢語意思
Aside from a few scratches，I'm OK.發(fā)布：2024/5/23 20:38:36組卷：2引用：2難度：0.9986．聽下面句子，標(biāo)出語調(diào)，升調(diào)用（↗），降調(diào)用（↘）
His father is a foot ball player.發(fā)布：2024/5/23 20:38:36組卷：0引用：2難度：0.9987．They also write letters of recommendation on students' behalf.
→They also write letters of recommendation.發(fā)布：2024/5/23 20:38:36組卷：1引用：2難度：0.6988．worn out；take control of；try out；get punished；suffer from；aside from；make up one's mind；be composed of；be involved in；day and night
（1）Once she has，nothing can change it.
（2）It is said that the team50 scientists.
（3）After the long journey，the old traveller was.
（4）She realized she shouldher illness，not let it control her.
（5）When he was young，he was alwayssome new ideas.
（6）When hework，he always forgets all about eating or sleeping.
（7）If you keep on doing like that，you will.
（8）I'm sorry to hear that you arepressure from College Entrance Examination.
（9）Her husband became ill and Mary was occupied in looking after him.發(fā)布：2024/5/23 20:38:36組卷：3引用：1難度：0.8989．One typical characteristic of poetry is that it uses no unnecessary word.
Onecharacteristic of poetry is thewords.發(fā)布：2024/5/23 20:38:36組卷：0引用：2難度：0.9990．
those facts，we can reach the following conclusion.
根據(jù)那些事實(shí)，我們可以得出以下結(jié)論。發(fā)布：2024/5/23 20:38:36組卷：4引用：2難度：0.7
