Rip currents can be ________ to people in the water.
举一反三
- According to the state of water in the soil, the liquid phase can be divided into ____, bound water, and free water.
- Chinese people like hot water, while Americans like cold water. （ ）
- It can be inferred that in many regions suffering from water stress, people are _____.
- How can we avoid a worldwide water shortage in the future A: We can invent ways of increasing rainfall. B: We can develop ways of reusing water. C: We may use less water. D: We may build fewer steel plants.
- In many places, tap wateris both clean and ____1__. In fact, there are more unhealthy chemicals in bottled water. These ____2__ come from the plastic. Here’s another fact: Most bottled water is the same as tap water. Both tap and ____3__ water come from rivers and lakes. But bottled water is more expensive. It costs almost a ____4__ times more than tap water. Putting water in bottles also wastes water. Water is used to clean bottles first, and this is ___5____. Of course, in some places, people need to drink bottled water. The tap water isn’t clean in those places. But this must ____6__. Eighty percent of plastic bottles go in the trash. And this is very bad for our ___7____.