题型:阅读理解 题类:常考题 难易度:普通
四川省蓉城名校联盟2017-2018学年高二上学期英语期末联考试卷
From July to October every year, about a quarter of the world's blue whales feed in the Pacific Ocean off the coast of California. But the whales currently face a major threat in their favorite feeding area. Ships carrying cargo (货物)sail in the same area at the same time. All too often, the whales' paths and the ships' travel lines overlap (重叠), and a ship will hit a whale.
According to a new study, these ship strikes have become a serious threat to the overall population of the world's blue whales. Only about 10,000 of the creatures still exist worldwide. Blue whales are the largest known animals ever to live on Earth. Even so, if hit by a container ship, a blue whale will likely die from its injuries.
In 2007 alone, large ships killed five blue whales in the waters off San Francisco and Los Angeles, California. The National Oceanic and Atmospheric Administration (NOAA) says that because there are so few whales already, losing three to five from the California whale population every year is a significant loss. “The estimated population of blue whales in this part of the Pacific is 2,500”, says Sean Hastings, a NOAA analyst. “So every whale counts toward this species moving off the endangered-species list.”
Now, marine scientists must figure out how to protect the whales from the giant container ships. One very simple program is already under way in the Santa Barbara Channel, a waterway that separates mainland California from the nearby Channel Islands.
The Channel Islands National Marine Sanctuary has asked large container ships passing through the area to voluntarily slow down. Sailing slower will allow the ships‟ crew (船员)more time to change course before hitting a whale.
Several of the world's largest shipping lines are set to participate in the new program. For every ship that passes through the Santa Barbara Channel at or below the reduced speed of 12 knots (海里/小时), the company that owns the ship will be paid $2,500.
Inspiring young minds!
TOKNOW Magazine is a big hit in the world of children's publishing, bringing a unique combination of challenging ideas and good fun to young fans every month.
What is so special about TOKNOW magazine? Well, it has no ads or promotions inside—instead it is jam-packed with serious ideas. TOKNOW makes complex ideas attractive and accessible to children, who can become involved in advanced concepts and even philosophy(哲学)—and they will soon discover that TOKNOW feels more like a club than just a magazine. |
What's inside? Every month the magazine introduces a fresh new topic with articles, experiments and creative things to make — the magazine also explores philosophy and wellbeing to make sure young readers have a balanced take on life. |
Sounds too good to be true?
Take a look online—evidence shows that thousands of teachers and parents know a good thing when they see it and recommend TOKNOW to their friends.
Happy Birthday All Year!
What could be more fun than a gift that keeps coming through the letterbox every month? The first magazine with your gift message will arrive in time for the special day.
SUBSCRIBE NOW
Annual Subscription: Europe £55; Rest of World £65.
Annual Subscription with Gift Pack: Includes a Mammoth Map, a Passport Puzzle Booklet, and Subscription. Europe £60; Rest of World £70.
Refund Policy—the subscription can be cancelled within 28 days and you can get your money back.
试题篮