人教版高一英语第一册 Unit 4 单元测试题(含答案)（考试时间：90分钟满分：120分）第一部分阅读理解（共两节，满分50分）第一节（共15小题；每小题2.5分，满分37.5分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
APhoenix, Arizona, the USA was struck by a big sandstorm(沙尘暴) recently. It was a huge dust storm that struck Phoenixa little after 7:00 p.m. local time.Arizona has sandstorms particularly during the monsoon(季风) season which usually starts from mid-June until the end of September. However, this was the biggest. The cloud of dust turned day into night. Some trees were downed and gardens were destroyed and it cut off the power of thousands of local people in the area, but luckily no death happened. A number of people's pools became dirty with dust. People who lived in Phoenix for more than 40 years said that this was the first time they had experienced this huge dust storm. It could greatly influence people's health.The big dust cloud started in Tucson traveling north across the desert. The huge storm ran up to 60 miles per hour. It was more than 100 miles wide and a mile high. Besides Phoenix and nearby cities, the storm also reached Yuma County in southwestern Arizona. It reduced the visibility(能见度) in these areas, putting off the flights at Phoenix Sky Harbor International Airport.The storm only takes place in Arizona, the Sahara Desert and areas of the Middle East, because of the dry environment and large amounts of sand. Because of the serious shortage of rain, there's a large possibility that the water is polluted because of the storm.1.In what season do sandstorms usually take place in Arizona?A.In fall and winter.B.In summer and fall.C.In winter and spring.D.In spring and summer.2.What does the underlined word “this” in Paragraph 2 refer to?A.The storm.B.The wind.C.The desert.D.The state.3.Why was local people lucky after the big sandstorm happened?A.People's health was not influenced.B.It didn't do harm to people's gardens.C.All the local people in the area survived.D.The electricity was not affected at all.4.What can probably be the title of the passage?A.Phoenix, Arizona has more sandstormsB.Sandstorms do a great deal of harm to peopleC.We must do something to prevent sandstormsD.Phoenix, Arizona experienced a huge sandstormBA 9.0-magnitude earthquake off the Indonesian coast sent a wall of water racing toward Thailand, Malaysia and Sri Lanka. Lang was on the island of Phi Phi Don, just south of Phuket, Thailand, shopping on Main Street with her friend Rubina Wong, when suddenly everything changed. "People started running inland. From where we were, we could not see the beach so we had no idea what was going on," she said.Lang and Rubina started running inland in the same direction as everyone else, when she noticed water flooding into the island, but it was so strong and fast that she could no longer lift her feet to run. Rubina had gone down a side street. Lang never saw her alive again.Lang was stuck underwater between pieces of debris(碎片) with the surface just above her face. "The more I struggled(挣扎), the tighter I was stuck. I could not reach the surface. I thought I came here on my vacation to die, and then I got really annoyed," she said. "I must have blacked out because the next thing I remember is waking up underwater."The water was still and black. Lang looked up and could see that at the top, there was a small circle of light. She started swimming through the water and made it to the surface of the water. She pulled herself onto a floating door and could see that the whole island was flooded and a lot of buildings were gone. She could see a house not far away and a man on its roof. She encouraged herself to climb over the floating objects to the balcony(阳台) of the house. From there she saw the water start to slowly go back to the ocean.5.What was Lang doing when the tsunami happened?A.She was running in a race.B.She was playing on the beach.C.She was shopping in the street.D.She was looking for her friend.6.Why was Lang unable to run?A.There was a wall in the way.B.She feared she would get lost.C.She had to wait for her friend.D.The racing water was too powerful.7.What can we learn about Lang from Paragraph 3?A.She didn't want to struggle.B.She was trapped underwater.C.She didn't regret going on vacation.D.She kept awake all the time in the water.8.How did Lang manage to save herself?A.By calling for help.B.By hiding in a house.C.By climbing up a tall tree.D.By making use of floating objects.CWhat do you think of when you hear the word “drought”? Do you think of “dry” “hot” “dusty” “cracked(开裂的)earth” or even “no water”? If so, you’re on the right track!When some places are in drought, they may be dry, hot and dusty. Cracks may appear in the soil, and rivers, lakes, streams, and other sources of water may go dry. Other places in drought get some rain, but not as much as they usually receive during that season. Drought means that a place has less rain or snow than normal over a few months or even longer.Drought has many causes. It can be caused by not receiving rain or snow over a period of time. We learned in the discussions above about the water cycle and weather. The changes in the wind patterns that move clouds and moisture through the atmosphere can cause a place not to receive its normal amount of rain or snow over a long period of time.If you live in a place where most of the water you use comes from a river, a drought in your area can be caused by places upstream from you not receiving enough moisture. There would be less water in the river for you and other people who live along the river to use.People can also play a big role in a drought. If we use too much water during times of normal rainfall, we might not have enough water when a drought happens.9.What’s the purpose of Paragraph 1?A. To introduce the topic.B. To analyze the problem.C. To conclude the article.D. To put forward an argument.10.What will happen if a place is in drought?A. The weather will be dry, hot and windy.B. There won’t be any water left in rivers or lakes.C. There will be less rain or snow for quite a long time.D. The rainy season will be replaced by the snowy season.11.What’s the meaning of the underlined word “moisture” in Paragraph 3?A. Dust in the wind.B. Rain in the soil.C. Snow on the ground.D. Water in the air.12.What topics are discussed before the passage?A. The definition(定义) of drought.B. The water cycle and weather.C. The causes of drought.D. The influence of drought.DThe Horn of Africa was struck by billions of locusts(蝗虫). They flew through fields of crops at an amazing speed, killing crops in the process. The locusts crossed the Gulf of Aden and arrived in Somalia and Ethiopia. They were then found in Kenya and had become the worst disaster there in 70 years.The U.N. says the area is affected by lack of food, and it warns that the international community only has a small window of opportunity to prevent future disaster". "These things are always voracious," says Keith Cressman. A swarm(一大群) the size of Manhattan can, in a single day, eat the same amount of food as everyone in both New York and California, he says. Swarms of desert locusts more than three times the size of New York City have been seen in northeast Kenya.Experts know how to stop the locusts' spread, but say efforts have been prevented by a lack of resources because it's difficult to spray pesticide(喷洒农药) in conflict-racked(冲突肆虐的) places such as Somalia and Yemen. "We do have a chance to solve this problem in the bud, but that's not what we're doing at the moment," Mark Lowcock said. "We're running out of time."Desert locusts are known for their rapid reproduction and ability to move long distances with the wind. "This kind of insect has been around for a long time," Mark Lowcock said. "It has so many different survival ways...to just survive in some of the harshest conditions and remotest parts of the planet. But it has the great ability to take advantage of good conditions." It reproduces rapidly—every three months, and in suitable conditions, the population could increase by 400 times every six months.13.Where might locusts first appear?A.In Ethiopia.B.In Somalia.C.In Kenya.D.In the Gulf of Aden.14.What does the underlined word “voracious” mean?A.Expecting to fly.B.Wanting to eat.C.Being curious.D.Being cautious.15.Which might be the cause of the locusts' spread?A.Experts' unawareness of how to prevent the locusts' spread.ck of people to deal with locusts.C.The good living environment of the desert.D.Losing the chance to solve the locust problem in the bud.16.What is Paragraph 4 mainly about?A.Desert locusts' ability to take advantage of good conditions.B.Desert locusts' long life on the earth.C.Desert locusts' ability to reproduce and survive.D.Desert locusts' different survival abilities.第二节（共5小题；每小题2.5分，满分12.5分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
