Hall

Hail.

Hail is frozen drops of rain.It is formed when hail stones develop in tall clouds. These clouds are much warmer at the bottom top. Sometimes air currents blow drops of water in a cloud up higher into the cloud. I't is colder there, so the drops freeze into ice. Usually the drops aren't yet heavy enough to fall to the Earth. So the drops rise and fall a number of times within the cloud, and each time a drop rises and falls, it adds another layer of ice. A hailstone actually has a number of layers of ice on it, one layer for each time that it's pushed up and freezes again.After it builds up enough layers, it gets too heavy. And that's when it falls to Earth. media type="custom" key="28074015"media type="custom" key="28074025"


 * PASSAGE FOUR.**
 * Page 155.**
 * Questions 7 and 8.**
 * Listen to a discussion by two** **st****udents taking a meteorology class.**


 * //(man)// OK, I think we understand how snow and rain are formed. Now we need to discuss the formation of hail, and this part isn't**
 * very clear to me. What exactly is hail? And how does it differ from snow and rain?**
 * //(woman)// Well, it's not really too hard to understand.**
 * Hail is really just frozen drops of rain.**
 * //(man)// That's all it is? When I was reading about it, it seemed rather hard to understand. How is hail formed?**
 * Hail stones develop in cumulonimbus** **clouds that've grown very tall. Cumulonimbus clouds?**
 * That's right. Cumulonimbus clouds are very** **tall clouds. They can actually be as tall as six miles. Because they're so tall, they're**
 * much warmer at the bottom** **top.**
 * That's really tall.**
 * And sometimes air currents blow drops of** **water in a cloud up higher into the cloud.**
 * Where it's colder, so the drops freeze into ice. Do the drops fall to the earth then? Usually not just after the trip up. Usually**
 * the drops aren't yet heavy enough to fall to** **the Earth.**
 * So the drops rise and fall a number of times within the cloud, and each time a** **Drop rises and falls, it adds another layer of ice?**
 * Yes, you’ve got it.**
 * Really? This isn't as difficult as I thought. I** **can understand it.**
 * //(women)// Yes, you can. A hailstone actually has a** **number of layers of ice on it, one layer for each time that it's pushed up and freezes again. After it builds up enough layers, it gets too heavy.**
 * //(man)// And that's when it falls to Earth.**
 * //(woman)// Exactly.**


 * LISTEN AGAIN TO PART OF THE DISCUSSION.**
 * THEN ANSWER THE QUESTION.**
 * //(man)// Now, we need to discuss the formation of hail, and this part isn't very clear to me. What exactly is hail? And how does it differ from snow and rain?**
 * Well, it's not really too hard to understand. Hail is really just frozen drops of rain. That's all it is? When I was reading about**
 * it, it seemed rather hard to understand.**


 * HOW DOES THE MAN SEEM TO FEEL ABOUT THE TOPIC IN THE BEGINNING OF THE CONVERSATION?**
 * LISTEN AGAIN TO PART OF THE DISCUSSION. THEN ANSWER THE QUESTION.**
 * //(man)// So the drops rise and fall a number of times within the cloud, and each time a**
 * drop rises and falls, it adds another layer of ice?**
 * //(woman)// Yes, you've got it.**
 * //(man)// Really? This isn't as difficult as Ithought. I**
 * can understand it.**


 * WHICH SENTENCE BEST EXPRESSES HOW THE MAN FEELS AT THE END OF THE CONVERSATION?**