Researchers at an American university are working to create special chewing gum （口香糖） to help reduce the spread of COVID-19.
Experts agree that vaccination （接種疫苗） is（1）DD of all the ways to fight against COVID-19，but vaccinated people can still spread it.So researchers are hoping that their chewing gum will give people （2）BB useful and low-cost way to prevent COVID-19 from （3）CC.
"This chewing gum is made（4）AA a plant.It has a material（5）DD can kill the virus in the mouth." Henry Daniel，the leader of the research，explained， "So，the virus can not revive inside the body." That's why（6）AA useful to prevent COVID-19.
The research is still in （7）AA early periods.The researchers are planning to carry out a clinical trial （臨床試驗） in humans to decide whether people can use it（8）BB and whether it's effective.If it（9）CC，people can use it in situations where they need to be close to each other，such as teeth cleaning by a doctor.
"We are already using masks and other things to reduce the spread，" Daniel said. "This gum（10）BB as another tool to win this fight.I hope we can succeed in this research."
| （1） | A．good | B．better | C．best | D．the best |
| （2） | A． / | B．a(chǎn) | C．a(chǎn)n | D．the |
| （3） | A．spread | B．spreads | C．spreading | D．to spread |
| （4） | A．from | B．of | C．with | D．a(chǎn)bout |
| （5） | A．who | B． / | C．whom | D．which |
| （6） | A．it is | B．is it | C．it was | D．was it |
| （7） | A．its | B．it's | C．their | D．theirs |
| （8） | A．safe | B．safely | C．safety | D．safeness |
| （9） | A．will work | B．is working | C．works | D．worked |
| （10） | A．can use | B．can be used | C．must use | D．must be used |
【答案】D；B；C；A；D；A；A；B；C；B
【解答】
【點評】
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：2024/5/27 14:0:0組卷：13引用：1難度：0.7
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