高一英语阅读理解专项练习4

1、Week Fifteen自然环境一、阅读理解（共20 小题；共40.0 分）ADespite recent storms during the autumn and first part of the winter, drought conditions are forecast to continue over a large part of the Plains.Rainfall has been enough over the Ohio and lower Mississippi basins. However, unless there is a big turn later this

2、 winter and spring, more important problems could be ahead for the Mississippi River above the Ohio River connection.While a storm is forecast to swing northeastward over the Central states, much of the rain may fall south and east of St. Louis. Mississippi River levels are expected to dip again nex

3、t week at St. Louis.Engineers has been taking steps to keep the shipping channel open by digging the river bottom, removing rocks and placing barriers under the water to rce shifting soil. The rest is up to Mother Nature. Barge companies have been limiting their loads due to the low water levels.Sno

4、w fell over part of the winter wheat belt with the storm just after Christmas 2018.However, much more moisture is needed through the winter and into the spring.According to Dale Mohler, "One of the big problems the Central states had last spring was a lack of thunderstorms". These groups o

5、f thunderstorms are the major source for spring rainfall and runoff over the Plains and Midwest, following melting snow early."There are concerns for drought continuing over the central High Plains and the northern Plains in general going into the spring," Pastelok stated that the pattern

6、does not look to be as dryof a start this spring, when compared to last year from Iowa to the Ohio Valley and some moistureis likely to make appearances over the southern Plains.There is also some good news for the Southeast. "Signs are that the drought abnormally dryareas over Georgia and the

7、Carolinas will shrink moving through the winter and should be mostly gone by the spring," Pastelok said.1. Which place is still facing the serious drought?A.The central High Plains.B.Lower Mississippi basins.C.Over the Ohio River.D.Areas over Georgia.2. By saying "the rest is up to mother

8、nature", the writer means.A. the rest is to deal with natureB. the rest is at the mercy of natureC. the rest will be in control of natureD. the rest are busy conquering nature3. What role do the thunderstorms play in the central states?A. They will flood these states in summer.B. They will caus

9、e snow to melt early in spring.C. They will bring a lot of rainfall there.D. They will get these states to become dry.4. Patelok's attitude to the drought in the Southeast was.A.doubtfulB.disappointed C.concernedD.optimistic5. What might be the most suitable title for the passage?A. Drought Cont

10、inues in Spite of Recent Storms in AmericaB. America Suffered the Most serious Drought in HistoryC. Many Southern States in America Are Facing DroughtD. More Storms will Solve the Drought Problem in AmericaBThe bad reputation icebergs sometimes have isn't entirely deserved even if the scientists

11、who study these floating islands of ice are the first to admit just how risky they can be. Thesesame experts are learning more about how helpful icebergs can be for life too.Icebergs, scientists are discovering, play host to all kinds of life everything from tinyorganisms called phytoplankton to hug

12、e whales.Finding how and why animals choose to make their homes in and around icebergs hasn't proven an easy task for scientists. Icebergs rise to towering heights and even more terrible depths.To study them underwater, scientists may sink scientific instruments hundreds of meters to the chilly

13、seafloor. To understand what's going on dozens of meters up on top, these experts maydepend on remote-controlled aircraft. Meanwhile, waves may rock and wet scientists waving in nearby boats.The biologists Ken Smith and Ron Kaufmann have sailed through the waters that surround Antarctica to get

14、up close with icebergs. No matter how curious the researchers may be, they do most of their admiring from afar."When an iceberg breaks off from an ice sheet, the last place you want to be is anywhere near it," says Kaufmann. "A lot of icebergs are cracked, and huge sheets can come off

15、 at any time,"adds Smith. "They can drop a huge piece of ice into the water, and the problem is that it creates a huge wave, which could flood your ship."The planet is warming. As a result, the ice is melting. More melting means more icebergscalve from the edges of the ice sheets wher

16、e they meet the ocean. Melting icebergs don't just let gohuge quantities of freshwater into the ocean they also deliver a lot of the fertilizer that phytoplankton need.Importantly, tiny phytoplankton provide much more than dinner. They also consume carbondioxide about as much as do all the plant

17、s on land.So more global warming could mean more icebergs. And more icebergs could mean morephytoplankton. In turn, more phytoplankton may lead to less carbon dioxide in Earth's air and water.Will iceberg communities help slow the rate at which global temperatures are rising? It's still uncl

18、ear.6. The third paragraph is mainly about.A. the difficulty of studying icebergsB. the method of studying icebergsC. the benefits of studying icebergsD. the scientific equipment of studying icebergs7. From what Kaufmann said, we can infer that.A. the nearer to the icebergs, the safer it isB. it is

19、very dangerous to get close to icebergsC. icebergs are the last place people never land onD. an ice sheet can form into many icebergs8. The underlined word "calve" may mean.A.cut offB.fall offC.break offD.put off9. What is the final result of more icebergs?A. They may increase the amount o

20、f carbon dioxide.B. They become shelter for phytoplankton.C. They provide food for various organisms.D. They may slow the speed of global warming.10. The passage mainly tells us that.A. icebergs host large and lively communities of lifeB. icebergs are a threat to the safety of sailingC. icebergs are

21、 floating across oceans slowlyD. icebergs are home to many sea animalsCVisit the beach on a hot afternoon and you may not realize it, but someone or rather something is watching from above. If you stand in the right place, the silent watcher's unseen spotlight will pass right over you, like the

22、spotlight of a police airplane flying overhead.Scientists these days are worried about sea level. As Earth warms, the surface of the ocean isrising upward. This rise is happening partly because salt water increases a tiny bit as it warms."Warmer water exactly is taller," explains Josh Will

23、is.Sea level also is rising because warm temperatures have prompted glaciers in Antarctica, Greenland and other usually cold places to melt more quickly. Glaciers are essentially rivers of ice,and their melting adds freshwater to the ocean. Antarctica and Greenland are together losing about350 cubic

24、 kilometers of ice per year enough melt-water to fill up 80,000 baseball stadiums. Spread over the world's oceans, that melt-water alone raises sea level about 1 millimeter or so each year.Scientists have long known that sea level changes over time. Paul Hearty, a geologist, has found stones cov

25、ered in shells some 30 meters above sea level. Those high and dry barnacles are several million years old. They serve as evidence that sea level was once much higher.Sea level has risen and fallen with the ice ages, over hundreds of thousands of years. Duringpast ice ages, oceans were lower because

26、more water was tied up in glaciers on land. But between ice ages, sea level sometimes rose higher than it is today, as melting glaciers sweated their water into the ocean.The big challenge for scientists has been how to measure changes to sea level throughout the past 50 to 100 years. Bruce Douglas,

27、 a retired scientist spent years working on this. During the1980s and 1990s he measured sea level rise by studying records from tide gauges. Harbor operators have relied on these devices for more than 200 years to watch the water level in coastal areas in order to warn ships of running aground. But

28、the gauges measured the level of the world's oceans, which cover 360 million square kilometers, in only 20 or 30 places!11. The second paragraph implies that.A. water level is lower if it is frozenB. salt water is easier to become warmC. the surface of the ocean is rcingD. the ocean is becoming

29、smaller in size12. From the third paragraph we know that.A. Antarctica has the largest amount of ice in the worldB. the melting of glaciers causes sea-level to riseC. ice from Greenland raises sea level about 1 millimeterD. 80,000 baseball stadiums are flooded by sea water13. During the ice ages oce

30、ans were lower because.A. more water was frozen into ice in the seaB. glaciers provided more water into the oceanC. more water was left on land as iceD. water couldn't flow easily in cold weather14. Why did harbor operator record tide gauges?A. To learn more about the changes of tides.B. To prev

31、ent the coastal areas being flooded.C. To measure the level of the world's oceans.D. To warn ships not to run aground.15. What might be the most suitable title for the passage?A. Watching Our Sea Level Rise B. Measuring the OceanLevelC.Changing the Sea LevelD.Studying the World SeasDThe United S

32、tates Environmental Protection Agency says only seven percent of plastic waste in the United States is recycled each year. A new company in northern New York says it can increase that percentage. It also says it can help the United States rce the amount of oil it imports.The company has a machine it

33、 calls the "plastic-eating monster". Every hour, thousands of kilograms of milk jugs, water bottles, and grocery bags are fed into the machine. The plastic waste comes from landfills across the United States. John Bordnyniuk runs the company, called JBI."Basically they've been min

34、ing their own piles for us and sending them here."Eight percent of the recycled plastic is used to run the system. Independent testers sayeighty-six percent of what goes in comes out as fuel.Bob Molodynia helps run the company. He watches as the plastic-eating machine pours athin, brown liquid

35、into an oil barrel."You could tap this right now and this is ready to go. That's a number six fuel, that's what a lot of like US Steel uses, a lot of major companies, that's what they pay the big bucks for, right there."JBI produces several thousand liters of fuel a day. It cre

36、ates different grades of fuel fordifferent industries. It sells the fuel for up to one hundred dollars a barrel. Each barrel costs aboutten dollars to produce.John Bordyniuk believes plastics will become an important source of fuel for the United States. He says this will rce the country's depen

37、dence on foreign oil and rce the amount of plastic waste in its landfills.Scientists say plastic-to-oil technology is still new and developing. They say it is not yet known if the process is environmentally friendly. And some questions whether turning plastic into oil can even be considered "re

38、cycling".Carson Maxted is with the publication Resource Recycling, a magazine that reports on the plastic recycling industry. He says because there is a lot of plastic waste and a great demand for oil, JBI's recycling technology may create great changes in both industries."So they'

39、re getting value from something that would otherwise go to the landfill, things that wouldn't be accepted into a recycler."16. How did John's JBI get plastic waste?A. It was posted to the company by people.B. John sent his workers to collect it.C. The company minded landfills itself.D.

40、It was sent by landfills themselves.17. According to the passage, plastic-to-oil technology is.A.effectiveB.wastefulC.simpleD.environmentally friendly18. From what Bob said, we can infer that the JBI's oil is.A.very expensiveB.of high qualityC.too thin to useD.black in color19. The attitude of C

41、arson towards John's technology is.A.doubtfulB.negativeC.supportiveD.unconcerned20. What would be the best title for the passage may be.A. Can Oil Be used to Rce the Amount of Plastic Waste?B. Can You Make A Lot of Money from Waste Plastic?C. Can Oil be Made from Waste Plastic?D. Can Waste Plast

42、ic Rce Our Need for Oil?二、完形填空（共20 小题；共30.0 分）New Australian research shows coral reefs aren't seriously damaged by oceanacidification( 酸化 ) than first thought. Scientists have been concerned that coral is21when carbon levels in the atmosphere rise, along with the acidity( 酸性 ) of the22. But a s

43、tudy on the Great Barrier Reef suggests otherwise.Among the threat to 23 from the effects of climate change, pollution and overfishing, Australian researchers have found some unusual 24 news.A team has been 25 26 like a paste strongly tocoralline algae ( 珊瑚藻 ), which are plants that27coral. A new st

44、udy has found thatdolomite ( 白云石 ), a mineral, helps to which is caused by the 2928 reefs from rising ocean acidity, of carbon dioxide from the atmosphere.Lead author Merinda Nash says it is an important30. "There was a lot ofconcern that the coralline algae, which plays a key role in31the reef andbinding corals together, that this would be the first thing to32as CO2 wentup and that would33the reef structure," she said. "So we found that thispresence of dolomite actually34the dissolution( 溶解 ) rate a lot to about onetenth the rate of the algae35the dolomite, so