13．
Many environmental groups are warning oceans of the world are in great danger．The main dangers for the oceans are pollution and overfishing．Pollution receives more publicity（attention got from media），but overfishing may be the more serious of the two in the next few years．
By the early 1990s，13of the world's 17main fishing areas were already destroyed or damaged badly by overfishing．Fishermen are finding fewer and fewer fish everywhere．Unluckily，this does not mean that fishermen are stopping fishing．Instead many are using new ways to fish new waters as deep as a mile．
Many scientists believe that present fishing ways will destroy all the large fishing areas of the world．What can be done to stop this？
Some scientists believe that governments should create no-fishing zones*-areas where no one can fish．Governments can patrol*and police these areas．During the U．N．International Year of the Ocean，more than 1600leading scientists from 65countries called for the world to create 80times the no-fishing areas that exist*now．Their goal is to protect 20% of the world's oceans by 2020．This is happening in some places-for example，the fishing industry*in Britain is beginning to accept no-fishing zones because the amount of fish the industry catches is getting smaller and smaller．
The fishing industry often argues that the scientific evidence*is not complete-that we just don't know what is going on in the oceans．Now，scientists and environmentalists have to prove that the fishing industry is doing damage before the government will pass laws protecting the ocean．This takes time and sometimes it is difficult to prove something like this．Science magazine says we should have the opposite rule-big fishing companies should have to prove*that they are not destroying the oceans before we allow them to fish．
Environmentalists say that the large fishing companies who own the large fishing boats are not going to stop fishing by themselves．So people need to get together and put pressure on their governments to do something．If we don't，there will be nothing left in the oceans but water．
37．How many main dangers for the oceans are mentioned in the passage？A
A．Two
B．Three
C．Four
D．Five
38．From the passage，we can know thatB．
A．media have paid more attention to overfishing
B．overfishing may become more dangerous to oceans
C．a(chǎn)ll fishing areas were already destroyed or damaged badly
D．people have stopped fishing to protect oceans
39．What can be done to protect the ocean according to the passage？A
①．No people can be allowed to fish in no-fishing zones-areas．
②The governments should pass laws to protect the ocean．
③Big fishing companies should give facts that they are not destroying the oceans．
④All people as well as Environmentalists should get together with their governments．
A．①②③
B．②③④
C．①②④
D．①②③④
40．The best title of the passage isD．
A．Stop Fishing
B．The Ocean in Trouble
C．No-fishing Areas Needed
D．Problems caused by Overfishing．
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