Europe.Some of the Vikings lived in Iceland by around 900 AD.A man 　3　(call) Eric the Red had committed a murder.As a result,he had to leave Iceland.Eric reached Greenland and found 　4　 people lived there well.He persuaded some Vikings 　5　(return) to Greenland with him,but only 14 of the 25 ships made 　6　 to Greenland.Not long after Eric the Red had landed in Greenland,Biarni set sail from Iceland to look for Eric's party.Unfortunately,Biarni 　7　(blow) off course and came to a(n) 　8　(know) land.At last Biarni reached Greenland.In 1002 Eric the Red's son Leif planned a trip further west with Biarni.Leif followed Biarni's directions and reached what is known 　9　 the coast of Canada.After that he sailed further south to an island called Newfoundland.Through old stories we know about Eric the Red and Leif's deeds.These old stories are the first records that we have of Europeans 　10　(sail) to the Americas.

答案:1.were　2.to reach　3.called　4.that　5.to return/into returning　6.it　7.was blown　8.unknown　9.as

10.sailing

Ⅴ.阅读理解

　　Thousands of puffins(海鹦) live in Maine and on islands in the Gulf of Maine.But the puffins may be in danger.Last summer,the number of laid eggs that successfully produced baby puffins took a dive.Scientists also found a decline(下降) in the average body weight of the adult and baby puffins on Machias Seal Island.Over the winter,dozens of the seabirds from the region were found dead,likely from starvation.

　　What's causing the puffins to get into trouble?Scientists think it may be a shortage of food.With ocean temperatures rising,fish populations have moved around.Normally,puffins' primary food source is herring(鲱鱼).A lack of herring in the area could be causing the problem.Tony Diamond,a professor from the University of New Brunswick who studies puffins on Machias Seal Island,says the amount of herring in the puffin's diet has been falling by about 5% a year.

　　Butterfish from the south have become more abundant in the Gulf of Maine and could be a new food source for birds.But Steve Kress,director of the National Audubon Society's seabird restoration program,says butterfish may be too big and round for baby puffins to swallow."We don't know how the puffins will adapt to these changes-or if they'll adapt to these conditions,"Kress told the Associated Press.

　　The Atlantic puffin is a small seabird with a colorful striped beak and pear-shaped body.Puffins spend most of their lives at sea.They come to the shore to breed(交配繁殖) each spring and return to the ocean in August.The chicks swim to sea about 40 days after hatching.Puffin populations stretch across the North Atlantic,from Maine to northern Russia.

　　Maine's puffin population has been at risk in the past.In the 1800s,they were hunted for their food,eggs and feathers.By 1901,only one pair of puffins remained in the state.Thanks to the help of local lighthouse keepers and seabird restoration programs,the state's puffin population has been restored to more than 2,000 birds.

1.The problem that puffins are likely to face is that 　　　.

A.they don't have enough food

B.their habitat is destroyed

C.the ocean is getting too warm

D.they don't lay many eggs

提示:推理判断题。根据第一段最后一句和第二段前两句可知,海鹦(puffins)可能面临的问题就是缺少食物。

答案:A

2.What do we know about Tony Diamond?

A.He comes from Machias Seal Island.

B.He has been doing research on puffins.

C.He is an expert who studies ocean birds.

D.He is in charge of the seabird restoration program

提示:细节理解题。根据第二段最后一句话可知,Tony Diamond是一位大学教授,一直在研究海鹦。

答案:B

3.Puffins don't like feeding on butterfish instead of herring probably because 　　　.

A.it is not easy to catch butterfish