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Recently, the problem of ¡ has aroused people¡¯s concern. ×î½ü,¡ÎÊÌâÒÑÒýÆðÈËÃǵĹØ×¢.
Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.
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Nowadays, (overpopulation) has become a problem we have to face.
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It is commonly believed that¡ / It is a common belief that¡
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Many people insist that¡
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With the development of science and technology, more and more people believe that ¡ Ëæ×ſƼ¼µÄ·¢Õ¹,Ô½À´Ô½¶àµÄÈËÈÏΪ¡
A lot of people seem to think that¡
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Taking all these factors into consideration, we naturally come to the conclusion that¡
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Taking into account all these factors, we may reasonably come to the conclusion that ¡ ¿¼ÂÇËùÓÐÕâЩÒòËØ, ÎÒÃÇ¿ÉÄÜ»áµÃ³öºÏÀíµÄ½áÂÛ¡
Hence/Therefore, we¡¯d better come to the conclusion that¡
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There is no doubt that (job-hopping) has its drawbacks as well as merits.
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All in all, we cannot live without¡ But at the same time we must try to find out new ways to cope with the problems that would arise.
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Today, most countries in the world have canals.Many countries have built canals near the coast, and parallel 1 the coast.Even in the twentieth century, goods can be moved more cheaply by boat than by any other 2 of transport.These 3 make it possible for boats to travel 4 ports along the coast without being 5 to the dangers of the open.Some canals, such as the Suez and the Panama, save ships weeks of time by making their 6 a thousand miles shorter.Other canals permit boats to reach cities that are not 7 on the coast, still other canals 8 landsswheresthere is too much water, help to 9 fields wherethere is not enough water, and 10 water power for factories and mills.The size of a canal 11 on the kind of boats going through it.The canal must be wide enough to permit two of the largest boats using it to 12 each other easily.It must be deep enough to leave about two feet of water 13 the keel of the largest boat using the canal.When the planet Mars was first 14 through a telescope, people saw that the round disk of the planet was criss-crossed by a 15 of strange blue-green lines.These were called¡°canals¡± 16 they looked the same as canals on earth 17 are viewed from an airplane.However, scientists are now 18 that the Martian phenomena are really not canals.The photographs 19 from space-ships have helped us to 20 the truth about the Martia¡°canals¡±.
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2.A.way B.means C.method D.approach
3.A.waterways B.waterfronts C.channels D.paths
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5.A.revealed B.exposed C.opened D.shown
6.A.trip B.journey C.voyage D.route
7.A.lain B.stationed C.set D.located
8.A.escape B.drain C.dry D.leak
9.A.water B.wet C.soak D.irrigate
10.A.furnish B.afford C.offer D.give
11.A.focuses B.bases C.depends D.takes
12.A.cross B.pass C.move D.advance
13.A.down B.below C.beneath D.off
14.A.studied B.researched C.surveyed D.observed
15.A.few B.number C.deal D.supply
16.A.although B.because C.so D.if
17.A.that B.where C.when D.as
18.A.exact B.definite C.certain D.decisive
19.A.held B.taken C.got D.developed
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