Section Ⅱ　The Language Points of Reading
课时作业(一)
对应学生用书P51
Ⅰ　完形填空
Sandstorms are one of the natural disasters which  are strong, dry winds that carry sand. Have you ever seen a sandstorm? I would like to share with you my personal __1__ of the sandstorm in northern China.  One  day,  we decided to __2__  a city of Jilin Province.  It was supposed to be four hours' drive from the place  where we lived.  We  __3__    at about 7：00 only to see  the most amazing  __4__  we had ever seen. The sky  was  __5__  as if it was midnight. The  __6__  from the few cars that dared travel in the streets were yellowish.  So we had to stay at home,  __7__  for a better  condition for our trip.
The wind was fairly  __8__  and might have been  stronger at night __9__    we woke up. The visibility (能见度) at this point was close to 20 m. About two hours  later the __10__  increased to 50 m and stayed so    __11__    about 10：00 am.
When the dust lifted (消散)  a little and the  visibility __12__ to 200 m, we decided to drive out.  However, everybody on the road was enveloped in  thick fog with dust and the sky glowed with a dark    __13__  colour, so we hardly see each other  __14__. Sometimes, the wind suddenly __15__ up a lot of dust  and sand and the visibility occasionally decreased to  20－50 m, making it very __16__ to drive.
  The dust  __17__    in the air until the late afternoon  when it slightly lifted. At last, we arrived at the city,  but the trip that __18__ took about four hours, took us  nearly eight hours. The dust remained in the  __19__ for about two more days. On the third day a short  period of rain  __20__  as the cold front passed the region. So the terrible scene came to an end, and  everything took on a lively and fresh appearance again.
　
1．A.experience                  B．record
C．idea                          D．action
答案：A'根据下文可知，作者分享了自己遭遇沙尘暴的亲身经历。experience意为“经历”。
2．A.leave                        B．visit
C．call                          D．see
答案：B'根据下文中的“our trip”可知，我们决定去游览吉林省的一个城市。故选B项。
3．A.woke up                      B．sat up
C．set off                        D．left off
答案：A'根据下文中的“So we had to stay at home”可知，作者还没出发，只是在7点醒来(woke up)。
4．A.storm                        B．snow
C．rain                          D．wind
答案：A'根据上文可知，作者要讲述自己亲历沙尘暴的经过，因此此处应说的是“风暴”，故选A项。sort of trip
5．A.dark                        B．bright
C．blue                        D．cold
答案：A'根据设空后“as if it was midnight”可知，天空一片漆黑，故选A项。
6．A.walls                        B．glass
C．cover                        D．lights
答案：D'句意：敢于在街上行驶的车不多，车灯发出的光是黄的。根据句意可知此处应指车灯。故选D项。
7．A.leaving                      B．waiting
C．taking                      D．calling
答案：B'根据上文可知，天很黑，街上的车也不多，我们只能呆在家里，等(waiting for)条件好转了再去旅行。
8．A.strong                        B．faint
C．weak                        D．soft
答案：A'根据设空后的“stronger”可知，此处是说风非常大，在我们醒来之前的晚上可能更大。故选A项。
9．A.after                        B．when
C．before                        D．while
答案：C'根据语境可知，风很大，可能在我们醒来之前的夜晚更大，故选C项。
10．A.speed                      B．power
C．strength                    D．visibility
答案：D'根据上文中的“The visibility (能见度) at this point was close to 20 m．”可知，两个小时后，能见度(visibility)增加到了50米。
11．A.since                                  B．before
C．when                        D．until
答案：D'句意：……一直保持这样的状态，直到上午10点。until意为“直到……为止”。
12．A.increased                  B．reduced
C．decreased                D．stayed
答案：A'根据上文可知，尘土有些许消散，能见度从20米到50米，再到200米，可以看出能见度在增加，故选A项。
13．A.red                          B．yellow
C．green                      D．black
答案：B'根据上文中的“yellowish”以及常识可知，刮沙尘暴时天空是暗黄的，故选B项。
14．A.faintly                      B．clearly
C．successfully              D．perfectly
答案：B'根据上文可知，外面大雾弥漫，伴有沙尘，天空暗黄，因此我们几乎看不清楚彼此。
15．A.picked                    B．took
C．turned                      D．looked
答案：A'句意：有时，风突然卷起很多尘土和沙子……。pick up意为“举起，捡起”。
16．A.safe                        B．dangerous
C．normal                      D．likely
答案：B'根据常识可知，能见度降低会使得开车很危险(dangerous)。故选B项。
17．A.remained                      B．jumped
C．covered                    D．dropped
答案：A'根据下文中的“The dust remained  in the    __19__ for about two  more days.”可知选A项。remain意为“停留；逗留”。
18．A.normally                  B．rarely
C．frequently                  D．particularly
答案：A'句意：……但是通常大约4个小时的车程，却花了将近8个小时。normally意为“通常；正常地”。