obviously pregnant at the time of the documentary filming.Now a much slimmer Deep Blue has showed up again at Guadalupe Island.

　　The researchers point out that the massive shark is recognizable by her numerous scars.In the Discovery documentary，it is explained that large and vertical slashes on Deep Blue's left flank are likely from fights with other sharks.Deep Blue also has a big wound on her right side，and both her dorsal(背部的) fin and tail show signs of scrapes and damage.

　　Great white sharks are known as the largest predatory(食肉性的)fish in the ocean.Wildlife biologists say that great white sharks usually grow to close to 15 feet in length, with a few specimens (试样)reaching more than 20 feet long and topping out at around 5，000 pounds.Females typically give birth to 2-14 fully formed pups.

　　The classic film Jaws gave great whites a bad reputation，showing them as nothing more than meat­eating machines.However，additional research into great white behaviors is beginning to paint a more complex picture.There is strong evidence that great white sharks do socialize to a limited extent，and moreover，they are not always violent or aggressive.

　　【语篇解读】　一部《大白鲨》给这个物种烙上了嗜血的标签。其实它们并不是那么暴力。

　　1．In the recent video footage，the giant shark was ．

　　A．friendly to a biologist

　　B．trying to attack a biologist

　　C．being trained by a biologist

　　D．trying to escape from a cage

　　A　[推理判断题。根据第一段的最后一句可知，这条大白鲨在跟那位生物学家击掌，这说明它对那位生物学家很友好。]

　　2．Paragraph 3 mainly explains ．

　　A．why the white shark gets injured

　　B．how white sharks usually get injured

C．what the documentary is mainly about