新冠病毒又双叒叕出现新变体，它离我们还有多远？（朗读版）|E0407

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▍原文

A new Covid variant has been found in the UK but experts say it’s too soon to know if it is more transmissible than previous strains.

The UK Health Security Agency said it was studying XE - a mutation of the BA.1 and BA.2 Omicron strains, referred to as a "recombinant".

The government body said that, as of 22 March, 637 cases of XE had been detected in England, only a small fraction of the tens of thousands of Covid cases being reported every day since restrictions were lifted.

▍语言点 

1. variant /ˈveriənt/ n. 变体

· vary /ˈveri/ v. 改变

2. it’s too soon to know if/特殊疑问词 现在还不知道……会怎么样(描述“说不清的情况”)

· It's too soon to know what will happen.

现在还不知道会发生什么。

3. transmissible /trænzˈmɪsəb(ə)l/ adj. 有传染性的；可传送的

· 构词：词根trans-越过，转变 

· transmit /trænsˈmɪt/ v. 传送，传播

· transmissible disease 传染病

· transmissible infection 传染性感染

· transmissible from person to person 人传人

4. strain /streɪn/ n. 种类，菌株(微生物学)

5. mutation /mjuːˈteɪʃ(ə)n/ n. 突变

· gene mutation 基因突变

6. referred to as 被称为……

7. recombinant /riːˈkɑːmbənənt/ n. 重组体

· recombine /ˌriːkəmˈbaɪn/ v. 重新组合

8. body /ˈbɑːdi/ n. 社团，团体，机构

· student body 学生社团

9. a small fraction of 一小部分

· a small fraction of the total 总数的一小部分

10. lift restriction 解除限制 

▍复述文本

A new Covid variant has been found in the UK but experts say it’s too soon to know if it is more transmissible than previous strains.  

The UK Health Security Agency said it was studying XE. That’s a mutation of the BA.1 and BA.2 Omicron strains, referred to as a "recombinant".  

As for the cases, the government body said, as of 22 March, 637 cases of XE had been detected in England, only a small fraction of the tens of thousands of Covid cases being reported every day since restrictions were lifted.

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