AThere is a tornado warning on. My mother just told me she heard it on the radio.
BWhat is a tornado warning?
AIt means that a tornado has been seen somewhere in the area.
BReally? In New Berlin?
ANo. Not necessarily in town. But in southern Wisconsin somewhere.A tornado has been spotted. They have two stages here.This is what is called a tornado watch. That means that the weather conditions are perfect for a tornado.
BI understand. They think a tornado might come.
AYes. People should look out, because maybe there will be tornadoes coming.So it's called a watch.
BAnd the second stage is called a tornado warning.
AYes. If a tornado has been spotted, they announce a tornado warning.So if there's a tornado warning on, it means a tornado is out there somewhere.
AWell. Tornadoes can be dangerous, it's true.If we hear something like a loud train coming, then we have to go in the basement.
BWhat do you mean a loud train?
AThat is what tornadoes sound like. They sound like trains. They're very loud.
BBut if you hear them coming, isn't it already too late?
AMaybe. It depends on the tornado.Some can move across the ground at 200 miles an hour.That is very fast. Others aren't so fast.
BHave you seen a lot of them?
AI've only seen one in my life. I was looking out the window. It was around two miles away. It was very interesting to watch.But it was heading toward my friend's house. So I quickly called them on the phone.
BDid it hit their house?
ANo, it didn't. But they are glad I called them.
BWhat were they doing when you called?
AThey were all sitting in the living room watching TV.They had no idea a tornado was coming toward their house.If it had hit them, they could have all been killed.
BThat's terrible. Do many people die in tornadoes?
ANot so many really. But a lot of houses are destroyed sometimes.
二环境保护Protect the environment
AWhat did you do over the weekend?
BI went a global warming rally in London. It was fantastic to be around so many people who care about the environment.
ADo you think there's anything we can do to reverse the damage that's been done already?
BIt might not be possible to fix the problems that we've created for ourselves, but there are lots of things we can do to prevent more damages from happening.
BWell, we can use public transport instead of taking our cars for a start.
AWhat else can we do to protect the environment?
BIf you do have to drive, you should make sure that your car runs on unleaded petrol. Also, your home should use sources of renewable energy.
AHow about recycling? Does that actually help?
BYes. You should take your glass, paper, plastic, cardboard, and tin cans to a recycling center.
AWhat do you think is the biggest worry for our future?
BI think that the issue of greatest concern is having enough sources of clean water for everyone.
AI had no idea you were such as environmentalist before!
BTo be honest, in order for the earth to continue to be a habitable place, we're all going to have to become more interested in the environment.