VOA慢速英语:Steps Urged to Prevent Snakebites, Improve Treatments

die from死于……

表示死的原因，die后通常接介词 of/from, 其区别大致为：

(1) 若死因存在于人体之上或之内（主要指疾病、衰老等自身的原因)，一般用介词 of。如：die of illness (heart trouble, cancer, a fever, etc) 死于疾病 (心脏病，癌症，发烧等)

(2) 若死因不是存在人体之内或之上，而是由环境造成的(主要指事故等方面的外部原因)，一般用介词 from。如：die from an earthquake (a traffic accident, a lightning, a stroke, etc) 死于地震(交通事故，雷击等)

(3) 若死因是环境影响到体内，即两方面共有的原因，则可用 of, from 均可。如：die of [from] a drink ( a wound, overwork, starvation, hunger and cold, etc) 死于饮酒(受伤，劳累过度，饥饿，饥寒等)

但是在实际运用中，两者混用的情况较多。

2.This recognition aims to bring greater attention to the problem.

bring attention to引起某人的注意，相当于attract one’s attention和draw one’s attention

例句：I will organize a strike to draw people's attention to our sub-standard working conditions.
      我要组织一次罢工，让人们关注到我们恶劣的工作条件。

3.Antivenom is the only cure.

only用作形容词

1)与the连用，意为“惟一的”，作定语。如：

John is the only boy in his family.

约翰是家里惟一的男孩。

She is the only girl here who knows how to drive a car.

她是这儿惟一会开车的姑娘。

Jeremy is the only friend who lives near, all my other friends live far away.

杰里米是我惟一住得近的朋友，其余的朋友都住得很远。

2)only可修饰复数名词，意为“仅有的、惟一的一些”，作定语。如：

They were the only people present.

出席的只有他们这些人。

3)与an连用，意为“单独的”，作定语。如：

Jim was an only son of his parents.

吉姆是他父母的独子。

4)与the连用，意为“最好的、最适当的”，作定语。如：

She is the only person for the job.

她是做这项工作的最佳人选。

He is the only man for me.

对于我来说，他是最合适的人。

The only thing to do on a hot day is to go swimming.

在热天最理想的事就是去游泳。

4.But experts say antivenom technologies and their use need to be improved.

need doing need to be done

need的用法：

1) 实义动词： need　（需要, 要求）
　　　　　　　 need + n. / to do sth
2) 情态动词： need，只用原形need后加do，否定形式为need not。
　　Need you go yet?
　　Yes, I must. / No, I needn't.
3) need 的被动含义：need, want, require, worth（形容词）后面接doing也可以表示被动：　
　need doing = need to be done

5.The treatments can cause dangerous and even deadly reactions if not used carefully.

if not used carefully是if型的省略句，即省略了主语和助动词。如：

He will come if asked=He will come if he is asked.如果受到邀请，他就会来的。
The medicine is very effective if taken in time.=The medicine is effective if it is taken in time.如果及时服用，这种药非常有效。