题型:阅读理解 题类:常考题 难易度:普通
河北省稳派教育联盟2017-2018学年高三上学期英语10月阶段性检测试卷
Coral reefs are,in fact,a necessary part of our ecosystem and provide opportunities for human beings to gain a better understanding of the ocean.Unfortunately,they're also disappearing faster than ever.
According to a warning by the US National Oceanic and Atmospheric Administration(NOAA) on Oct.8,the world is in its third recorded global coral bleaching(白化)since 1998 and 2010.This means no place with coral has been spared,as coral reefs are coming into contact with increasingly warm seas,which is leading to them dying off in large numbers.
Coral bleaching is like human cancer.It happens when corals are under stress from changes in light,nutrients,or temperature.This causes the coral to drive away the symbiotic algae(共生藻类),living within their tissues(组织), which play an important role in providing food for coral while making it colorful.Without the algae,coral reefs become pale and weak.In some cases they are not able to recover and eventually die off.
The current coral bleaching event started back in late 2014 and continued into this year with no signs of stopping.The BBC reports that 35% of coral reefs in the world will likely be affected,and an estimated 4,633 square miles (about 120,000 square kilometers) of coral reefs could die.
The loss of coral reefs is no small matter.Although they only take up 0.1% of the ocean floor,coral is home to about 25% of marine life.This isn't just a problem for divers and fish,as Eakin pointed out.Coral reefs are important globally,he added,as they protect shorelines,produce money in tourism,and help provide food for 500 million people worldwide.So people cannot overlook the environmental,economic and social effects of the loss.
The NOAA warning about coral bleaching came just about two months before a global climate summit(峰会)in Paris,where hundreds of world leaders will attempt to work out a plan to fight climate change.
Oceans will be a key subject during the summit,and Eakin says there's an "absolutely urgent need" for action.
a. They protect shorelines.
b. They are beneficial to tourism.
c. They are home to most marine life.
d. They help provide food for 500 million people.
A factory tour this summer! Here are some great ones to consider. | |
The Jelly Belly Bean Company Fairfield, CA At this working factory, guests can watch the process of making this famous candy. Have lunch at the Visitor Center Café, where you can order a jelly bean-shaped pizza or hamburger! It is located an hour north of San Francisco. There's no admission charge for the 40-minute walking tour. Tours are given most days from 9:00 am to 4:00 pm, but come during a weekday to see the candy making in process. | Louisville Slugger Baseball Bat Museum Louisville, KY See how each bat is carefully carved out at this family-favorite factory tour. Tour visitors leave with a miniature bat souvenir and personalized bats can be ordered when you arrive and picked up before you leave. Adult tickets are $9. Child tickets are $4. Ages five and under are free. It opens at 9:00 am Mondays through Saturdays. Check the website for specific days and times. |
E-One Fire Truck Factory Ocala, FL Take this walking tour of a plant in Florida and see for yourself the technology and skill required to build these emergency vehicles. Tours are offered Monday to Friday, at 9:00 am and 11:00 am. Prices are $8 for adults and $6 for children. Kids under 6 are not permitted on the tour for safety reasons. Reservations are required for all tours. Please call 352-861-3524 to schedule a tour. Firefighters can tour for free! | Crayola Crayon Company Easton, PA No, this isn't the actual place where the waxy rainbows are made. But it's an even-better visitor center where families can not only see how crayons are made, but can explore and use various Crayola art tools and products. Kids can use the latest Crayola products to create masterpieces on site. The visitor center is open most days from 9:30 am to 3:00 pm. The online calendar shows special hours, themes, and daily activities. Tickets are $9.50 each. |
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