Listen to the passage three times and fill in the blanks
It is generally believed that there is a good supply of fresh water. But to our disappointment, the fact is just the ①
.
As we can see, the world population is growing rapidly ②
. So enough fresh water is needed to feed such a big population. What’s more, with the ③
of industry, factories and vehicles produce poisonous gases or wastes, which result in the pollution of water. Though fresh, a good amount of it can ④
be used. Only quite limited fresh water resources are available to human beings. So it’s high time for us human beings to take quick action to protect water resources. Stop pollution and save water, otherwise, we cannot ⑤