D．the waves pushed her baby in the wrong direction

　　答案　D　[ 细节理解题。根据第五段中The mother dived under the water and came up suddenly, making big whirlpools (漩涡) and waves.“She's trying to help her baby, but on the wrong side，”可确定D项正确。]

　　43．Which of the following statements is FALSE ?

　　A．It was the first time that the author had gone fishing.

　　B．There were many whales along the coast then.

　　C．The mother whale dived under the water and came up suddenly to help her baby.

　　D．At last the two whales followed us and sometimes rose from the water right beside us to breathe.

　　答案　B　[细节理解题。由文章第三、四段可知，B项描述错误。]

　　C

　　The survival of about one fifth of the world's vertebrates—animals with a backbone，is considered threatened, according to new research published in the journal Science. That's a large fraction of Earth's animals, but this new study held some good news too.Conservation efforts by humans have slowed the loss of many species of amphibians(两栖动物), birds, and mammals. Losses in these groups would have been about 20 percent greater had it not been for recent actions of protection.

　　Among the animal­conservation success stories is one about birds called Mauritius kestrels. In the 1970s, just four of these birds of prey were left in the world. Through a special breeding program, scientists were able to increase their number to about 1,000 and release them into the wild.

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