冀教版高中英語(yǔ)必修3unit7newwavesoftechnology測(cè)試2(編輯修改稿)
2025-01-08 07:01 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 nd counting the number of amino acids in each form， Bada and Masters can work out a person’s tested a tooth from the body of an Eskimo（愛(ài)斯基摩人） woman who died 1 600 years the appearance of her body， she was between 50 and 60 years old when she tooth test put her age at the Russian Government sent them a tooth from an old man in tooth said she was real age was Russians are now hoping to send more teeth， from the very old people without birth certificates（出生證明書(shū)） .But there are of the centenarians（百歲老人） have lost all their others want to keep their teeth until they drop out the Russian Government and the American scientists have to wait and hope. Bada and Patricia Masters believe that they can tell a person’s age according to_______ experiment on his bone shape and condition of his teeth test on the amino acids within his body changing form of amino acids in his teeth to the passage， which of the following statements is true? amino acids in an adult’s teeth may differ from those in a baby’s. number of amino acids in a 20yearold man is different from that when he was seven. acids in one teeth changes without affecting their forms. no w can tell how long a person will live by testing his teeth. are the two scientists asked to find out some very old Russians’ age? the Government wants to know how long these old people can live. they have no birth certificates. people who have tooth problems tend to live longer. the Government wants to know their dates of birth and death. order to find out the exact age of some people over 100， both the Russian Government and American scientists_______. wait until all of them die pull out one of their teeth to wait for their teeth to drop out naturally to have their teeth pulled out central idea of the passage is_______. relationship between people’s teeth and ages relationship between amino acids and teeth contradiction（矛盾） between scientists and patients contradiction between the Government and the scientists[ B The bee， like the ant， is a social insect（昆蟲(chóng)） .Bees live in large groups in boxlike houses called hives or bee does a certain job that helps the other members of the a beehive there live three kinds of bees:the queen bee， the male bees and the worker worker bees are born to be hardworking， flying from flower to flower collecting nectar（花蜜），which is made up mostly of sugar mixed with draw this nectar into their honey bags where some sort of liquid in their bodies turns the nectar into newly made honey flows
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