Glaciers are a possible source of fresh water that has been overlooked until recently.2.________ It contains fresh water so much that it could sustain(维持) all the rivers of the world for 1h over the shallow continental shelf give birth to icebergs throughout the year.3.________ However,they are formed entirely on land,breaking off when glaciers spread over the sea.As they drift away from the polar region,icebergs sometimes move mysteriously in a direction opposite to the wind.Because they melt more slowly than smaller pieces of ice,icebergs have been known to drift as far north as 35 degrees south of the equator(赤道)in the Atlantic Ocean.4.________ The difficulty exists such as its rapid melting in warmer climates.5.________e sea every year.
D.But the water they could provide would be far cheaper than that produced.
E.To move them to dry parts of the world would not be too difficult.
F.It is not a dream to get water from icebergs.
G.Threequarters of the Earth’s fresh water supply is still tied up in glacial ice.
答案:1~5 BGAED完形填空
(2017·山师大附中考前模拟)Waiting for the airplane to take off__1__ me and asked,“Would you mind changing your seat?A couple would like to sit together.”The only other __2__ seat was next to a woman with both arms in casts(石膏)__3__ am I going to sit there” was my immediate thought.__4__ then a deeper,quieter voice spoke,“Opportunity.” Finally I took my new seat and __5__ that Kathy had been in an auto collision,and she was on her way for __6__.ts and juice arrived,__7__ did not take me long to realize that Kathy would not be able to __8__ herself.I considered offering to feed her but __9__,as it seemed too close a service to offer to a stranger.But then I decided that Kathy’s need was more important than my __10__.I offered to help her eat__11__ it,she did.The experience was __12__ and she and I __13__ close in a short period of time.By the end of the fivehour trip,my heart was fully __14__,and the time was __15__ better spent than if I had just sat by myself.
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