2017届高考英语二轮阅读理解训练：（37）_高考复习指南

2017届高考英语二轮阅读理解训练：（37）

　　77. Eating together helps families achieve open communication and build stronger and healthier relationships.

　　78. No family dinner can benefit. /Family dinner may not benefit.

　　79. their children’s school performance, daily activities and attitudes toward life

　　80. 父母也有更好的机会来减少孩子沾染烟、酒和毒品的可能性。/父母也更有可能降低子女染上吸烟、酗酒、吸毒等不良习惯的几率。

　　57.B

　　58.D

　　59.D

　　60.A

　　“Plants were expected to get larger with increased carbon dioxide in atmosphere, but changes in temperature, humidity and nutrient availability seem to trumped the benefits of increased carbon dioxide,” said researchers from the National University of Singapore.

　　45 per cent of the species studied now reach smaller adult sizes than they did in the past. The researchers pointed out that warmer temperatures and changing habitats, caused by climate change, are possible reasons for shrinking creatures.

　　“We do not yet know the mechanisms involved, or why some organisms are getting smaller while others are unaffected,” the researchers said. “Until we understand more, we could be risking negative consequences that we can’t yet quantify.”

　　The change was big in cold-blooded animals. Only two decades of warmer temperatures were enough to make reptiles smaller. An increase of 1 degree centigrade caused nearly a 10 per cent increase in metabolism(新陈代谢). Greater use of energy resulted in tiny tortoises and little lizards. Fish are smaller now too. Though overfishing has played a part in reducing numbers, experiments show that warmer temperatures also stop fish growth. There is a recent report on warmer temperatures’ negative effects on plankton(浮游生物), the base of the marine ecosystem.