内容正文:
Unit 4 Sharing
B卷能力提升卷
(时间:120分钟满分:120分)
第一部分阅读(共两节,满分50分)
第一节(共15小题;每小题2.5分,满分37.5分)
阅读下列短文,从每题所给的A、B、C,D四个选项中选出最佳选项。
Thousands of eggs of the endangered Olive Ridley turtles (on the
beach have failed to hatch this year because of the recent oil spill.An oil coat
had spread over a seven km area near the nesting site off the Rushikulya beach
after around eight tons of furnace oil leaked from an Essar-owned vessel near
Gopalpur port,20 km from here,on April 12.
Being pushed by high tide,the spilled oil spread to the coast.Villagers claimed that they
had seen carcasses of adult turtles along the coast after the sea water had been contaminated.
Around 155,000 of the rare Olive Ridleys had nested along the coastline in March while the mass
hatching of eggs,which continued for a week,ended last week.
"The authorities cleaned only 2-3 km stretch of the beach."Many eggs were damaged due
to the effect of oil deposits."Moreover,many baby turtles failed to move out of the nest as the
soil also got harder,"Sahu,who along with villagers of Purunabandha has been working in the
turtle conservation programme since the last 16 years,said.
Turtle expert Kartik Shanker also raised similar concerns."The oil spill will have an effect
on the mortality rate of the hatchlings.But scicntifically,it is not possible to arrive at a
mortality figure for it,"Shanker,a professor at the Indian Institute of Science,Bengaluru,said.
Marine scientist Bijay Kumar Sahu said there was an immediate need for a detailed multi-
discipline faculty study on the long-term impact of the oil spill on the marine environment.State
forest and wildlife officials,however,refuted (the claims."The oil spill has had no effect
on the hatching process.Oil was cleaned from the beach a long time ago and the issue is now a
closed chapter,"the state's Chief Conservator of Forests (Wildlife),Srivastava said.
The mortality rate of the hatchlings is usually high with only one out of every thousand
surviving to become an adult t