Climatic instability, which leads to rising sea temperatures, causes corals to bleach．Bleaching occurs when sea temperatures rise and this causes the coral tissue to expel their symbiotic algae called zooxanthellae - these are what give the coral their colour．Bleached corals often die if the stress continues．Among the 10 species chosen to start the Edge project are the pearl bubble coral, a food source for the hawksbill（玳瑁）turtle, and the Mushroom coral, which supports at least 15 brightly colored fish．

　　41．What does the first paragraph mean in the passage ?

　　A．Conservationists planned to preserve and protect some extinct corals years ago．

　　B．Conservationists have banned plans to protect endangered corals for years．

　　C．Conservationists are going to protect corals that are dying out in several ten years．

　　D．Conservationists have made plans to protect corals from being extinct in ten years．

　　42．What will probably happen to coral species with the increasing threats?

　　A．Decrease．

　　B．Losing functions． C．Disappearance． D．Existence．

　　43．Which of the following statements about the Edge Plan is TRUE?

　　A．The Edge Coral Reefs project was carried out by American scientists．

　　B．The plan concentrates on the channels to protect the endangered species．

【2017届高考英语三轮冲刺复习：完形与阅读强化训练28】相关文章：

★ 【浙江专用】2014届高考英语一轮复习课时作业(八)必修2Unit 3《Computers》

★ 2017届高考英语二轮复习大题冲关秘籍短文改错：解题策略（含解析）

★ 河南省三门峡市2014高考英语一轮（暑假）基础训练（9）附答案

★ 四川省2016届高考英语一轮复习课时作业（34） Module 4 Music 外研版选修6

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第2组（含解析）

★ 四点2015-2016高考英语第二轮复习建议

★ 2014届高考英语一轮复习课时作业(八)必修2Module 2《No Drugs》（外研版）

★ 2016年高考英语第一轮复习要知己知彼

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (14)

★ 【浙江专用】2014届高考英语一轮复习课时作业(十)必修2Unit 5《Music》