2019届一轮复习人教版必修一Unit4Earthquakes单元学案(11页word版)

2019届一轮复习人教版必修一Unit4Earthquakes 单元学案Ⅰ.阅读理解

话题词数建议用时

沙尘暴215 6分钟

A sandstorm refers to a high amount of wind occurring in sandy areas, usually in deserts, where the wind speed is able to lift the top layer of sand from the ground, and push it in every direction. The sand involved in the sandstorm can reach heights of about 3.05m－15.24m.

It is very dangerous to experience a sandstorm.

Sand can get into the nose, eyes, mouth and lungs. If

you happen to be caught in a sandstorm, you must

protect yourself by wearing masks, scarves and so

on.

If you're driving when such a storm approaches, it's advised that you pull off the road, since it's difficult to continue driving. This is also important since vehicles can fail in during sandstorms and you could end up stuck on the road.

Most sandstorms occur in spring, and during the daytime. Many of the areas around the Persian Gulf and the Sahara Desert are associated with the most serious storms. Since it's a natural phenomenon, it can't be entirely controlled. In areas that are natural desert regions, you can't always prevent a sandstorm. There's much evidence that the planet Mars has dust storms, and clearly, no human intervention (介入) is responsible for such. Though_it_can_move_whole_sand dunes_and_destroy_crops,_a_sandstorm_is_not_without_benefit.

语篇解读：本文介绍了沙尘暴常发生的时间、地点和基本状况以

及如何在沙尘暴中自我保护的一些建议。

1．If you're driving in a sandstorm, you'd better ________.

A．stop your car in the middle of the road

B．continue to make your way

C．stop and ask for help

D．stop your car on the side of the road

解析：选D细节理解题。根据第三段第一句中的“If you're driving when such a storm approaches, it's advised that you pull off the road ...”可知，如果你开车时遇到沙尘暴，你最好把车停在路边，pull off the road“把车停在路边”。故选D项。

2．The underlined sentence shows that, anyway, sandstorms are ________.

A．useful B．useless

C．harmful D．powerful

解析：选A推理判断题。画线句表明，虽然沙尘暴能移动沙丘并毁坏农作物，但它不是毫无益处的。注意“a sandstorm is not without benefit”表示“不无裨益”，是双重否定表示肯定意义。故选A项。

3．According to the writer, a sandstorm ________.

A．is the result of human activities

B．can be prevented

C．can't completely disappear on the earth

D．can't be forecast

解析：选C推理判断题。根据最后一段可知，作者认为沙尘暴是一种自然现象，不能完全被控制，也就不会完全消失，并且它也不是人为的后果。由此可知选C项。

toy blocks in the yard. My mom was out for shopping to get groceries and my dad was asleep upstairs in his room. Suddenly, it started to snow. First it was just a little. But then it started to pour heavily.

Then, we put the finishing touches to our blocks and headed back inside. Right when I opened the sliding glass door, my cousin fell down on the slippery wooden stairs. I let go of the door, my worst mistake, you see. The door locks automatically but I had put a rock, right next to the door so it wouldn't close. But while I was running to my cousin's aid I'd accidentally kicked the rock.

Now, my cousin and I were locked outside. And unfortunately it started to get really windy. It was really freezing with the snow. First we started to call my dad, but he was sleeping soundly. I mean, slept through a tornado soundly. It was of no use.

Then I tried to climb over the fence but it didn't work because the fence was iced by snow and wind, and the fence is six feet high. So, I climbed up to my tree house and brainstormed some ideas on ways to get in. At one point, I was seriously considering jumping out of the tree house and using the trampoline (蹦床) to jump over the fence.

So, we got to work. First, I took out the trampoline. Then I started to jump. First try —I almost cracked my head. Second try —this time I convinced my cousin to do it but at the last second, he chickened_out. Third try — I jumped and missed but at the last second, my hand caught the fence, and with a lot of pushing I finally climbed over the fence and luckily, I fell on a big snowdrift.

Then I got inside and unlocked the door for my cousin to get in.

Finally, my mom came back. Then we shared this story with my mom and dad.

语篇解读：本文是一篇记叙文。文章讲述的是作者与表弟在后院玩积木时突遇风雪天气，因意外他们被锁在门外的经历。

4．When the author wanted to jump in, the main problem was that ________.

A．the fence was icy

B．the fence was slippery and high

C．the trampoline couldn't bear the weight

D．the trampoline was too small

解析：选B细节理解题。根据第四段的“Then I tried to climb over the fence but it didn't work ... and the fence is six feet high.”可知，作者之所以跳不过去是因为篱笆又高又滑，故B项正确。

5．The attitude of the author's cousin towards jumping on the trampoline seems ________.

A．passive B．positive

C．indifferent D．objective

解析：选A推理判断题。根据倒数第二段的“... this time I convinced my cousin to do it but at the last second, he chickened_out.”可知，作者的表弟对作者的提议持消极态度，故A项正确。

6．The words “chickened out” (Paragraph 5) most probably mean “________”．

A．fell down B．cried out

C．jumped up D．backed out

解析：选D词义猜测题。根据倒数第二段的“... this time I convinced my cousin to do it but at the last second, he chickened_out.”中