VOA慢速英语:Irrigation Brings Malaria Along with Water

1. Irrigation systems can make a big difference in agricultural production.

make a difference 有影响；起（重要）作用
例句：It's those high-impact tasks that really make a difference.
正是这些影响力深远的工作改变着你。

2. A new study describes how irrigation water can lead to an increase in malaria cases that could last for ten years or more.

lead to 把…带到；导致
例句：That can lead to serious consequences.
这会导致严重的后果。

3. Mercedes Pascual is a scientist at the University of Michigan. She and her team studied areas in northern India where irrigation systems were built over a number of years.

a number of 许多的；一些
例句：He masterminded a number of terrorist attacks.
他谋划了许多次恐怖袭击行动。

4. In fact, we saw the opposite.

In fact 事实上
例句：Many japanese solar firms are in fact expanding.
实际上许多日本太阳能公司正在逐步壮大。

5. She also says health officials may need to try other methods of malaria prevention that would work for long periods of time.

work for 受雇于；为…而工作；效劳；致力
例句：That doesn't work for everyone.
这并不适用于所有人。