赖世雄英语新闻听力通 第63期:抽大麻会使心跳加快

 (WASHINGTON, Reuters)The risk of a heart attack jumps nearly fivefold during the first hour after smoking marijuana.

（路透社华盛顿电）开始抽大麻的一个小时之内，心脏病发作的危险性几乎会激增五倍。

this poses a particular threat to middle-aged¹ users of the drug, especially those over age 45.

这种危险性对于中年的大麻吸食者特别严重，尤其是超过四十五岁的人。

The increased risk from marijuana was more dangerous than sexual intercourse² for a sedentary person.

对于久坐的人而言，抽大麻所增加的危险性比性行为还高。

Marijuana can cause the heart rate to double.

大麻会让心跳速度增快一倍。

1 middle-aged   

adj.中年的

参考例句：

• I noticed two middle-aged passengers.我注意到两个中年乘客。
• The new skin balm was welcome by middle-aged women.这种新护肤香膏受到了中年妇女的欢迎。

2 intercourse   

n.性交；交流，交往，交际

参考例句：

• The magazine becomes a cultural medium of intercourse between the two peoples.该杂志成为两民族间文化交流的媒介。
• There was close intercourse between them.他们过往很密。