阅读理解。 A British ship that sank during the American Revolution has been discovered at the bottom of Lake Ontario.Surprisingly,the 22gun ship is wellpreserved in the cold,deep water.Explorers announced the news recently. Kennard is an electrical engineer.He has been diving for nearly 40 years and has found more than 200 wrecks(残骸) in the Great Lakes and other lakes or rivers.He began searching the Ontario 35 years ago but quit after several dives.Six years ago,he began to work with Scoville,a diver.Since then,the pair have found seven ships in the lake.Over the years,Kennard got licenses and information,including the ship's design plans,from the British government.Even then,it took the pair three years to search more than 200 square miles before they found the ship earlier this month. After locating the wreck with the sonal(声纳),the explorers used a submarine to confirm their find.The 80foot ship is the only entire British ship ever found in the Great Lakes,Scoville and Kennard said.'To have a ship from the Revolutionary War that's nearly entire is unbelievable.It's an archaeological miracle.'They said the ship is still considered the property of the British Admiralty. Although the ship sits in an area where the water is up to 500 feet deep and cannot be reached by anyone but the most experienced divers,Kennard and Scoville refused to give its exact location with care.They only said that it was found off the southern shore. The ship was discovered resting partially on its side.It went down on October 31,1780,with 60 British soldiers, a crew of about 40,mostly Canadians,and possibly about 30 American war prisoners. The explorers also found two cannons and the ship's bell. 1．From the passage we learn that Kennard________. A．has found over 200 wrecks in the Great Lakes B．has kept searching the Ontario for 35 years C．is both an engineer and an experienced diver D．got to know Scoville when he was very young 2．Kennard and Scoville's discovery of the British ship ______. A．cost them a lot of time and labor B．needed a lot of experts's support C．was forbidden by the government D．was made completely by accident 3．We can infer from the text that Kennard and Scoville______. A．will earn a great deal of money by selling the ship B．will become world famous because of their find C．may not have succeeded without modern technology D．will be given a large reward by the American government 4．Kennard and Scoville refused to give the ship's exact location because________. A．they did not know exactly where the ship was B．they were afraid that something unexpected might happen C．they wanted to keep it a secret forever D．they thought it would be interesting for people to guess where it is