1. (2022高二下·扬州期末) 听材料，回答问题。

Please listen carefully. We'll be hiking down into the Grand Canyon soon.<br />Even though it's a comfortable 26 degrees Celsius here now, it'll get much hotter as we go down.<br />In fact, when we get to the bottom, 4 hours from now, it'll be 43 degrees Celsius down there.<br />So most importantly, everyone must take along at least 3 liters of water.<br />You'd better wear comfortable clothes and take some medicine in case you suffer from an illness.<br />The heat can kill. In fact, this year, 4 people have already died in the Grand Canyon from heat<br />exhaustion. One of them, a healthy 24-year-old man, just died one week ago. These have been the<br />first heat-related deaths in the Grand Canyon in 5 years. Normally, people die in the Grand Canyon<br />because they fall into it. Sometimes, they also just get lost or get bitten by snakes,<br />but this year has been extremely hot. The average daily temperature has been 41 degrees<br />Celsius at the bottom. So be careful and tell me if you feel uncomfortably hot.<br />Last, I will carry a GPS. One will take a compass. The other three people will take a map. Well,<br />good luck. Please listen carefully. We'll be hiking down into the Grand Canyon soon.<br />Even though it's a comfortable 26 degrees Celsius here now, it'll get much hotter as we go down.<br />In fact, when we get to the bottom, 4 hours from now, it'll be 43 degrees Celsius down there.<br />So most importantly, everyone must take along at least 3 liters of water. You'd better wear<br />comfortable clothes and take some medicine in case you suffer from an illness. The heat can kill.<br />In fact, this year, 4 people have already died in the Grand Canyon from heat exhaustion.<br />One of them, a healthy 24-year-old man, just died one week ago. These have been the first<br />heat-related deaths in the Grand Canyon in 5 years. Normally, people die in the Grand Canyon<br />because they fall into it. Sometimes, they also just get lost or get bitten by snakes,<br />but this year has been extremely hot. The average daily temperature has been 41 degrees<br />Celsius at the bottom. So be careful and tell me if you feel uncomfortably hot.<br />Last, I will carry a GPS. One will take a compass. The other three people will take a map. Well,<br />good luck.

1. （1） What will the temperature be at the bottom of the Grand Canyon four hours later?

   A . 26℃. B . 41℃. C . 43℃.
3. （2） What is the most important thing to bring when hiking?

   A . Some medicine. B . Enough water. C . Comfortable clothes.
5. （3） What is the normal cause of death in the Grand Canyon?

   A . Falling into it. B . Heat exhaustion. C . Getting bitten by snakes.
7. （4） How many persons will go hiking together?

   A . Three. B . Four. C . Five.