北師大版英語高二下冊unit22environmentalprotectionword學(xué)案1(完整版)
【正文】 __(look) ahead,scientists believe that global warming could be one of the biggest environmental problems facing the 21st century. 漢譯 :_____________________________________________________ facing 是現(xiàn)在分詞做 _______語 ,修飾 _____?？蓳Q成定語從句 ______________ 漢譯英 :他轉(zhuǎn)過身來面對她 ______________ 4)But what exactly is the global warming,why is it seen as a danger,and how is it relevant to our lives? 漢譯 :_____________________________________________________ ① it 都指代 _____ ② be relevant to______________ StepⅥ閱讀理解 (C級 ) Where could you find radioactivity today? For one thing, as Pierre and Marie hoped, doctors can use radioactivity to treat cancer. Radiation therapy（療法） can treat lifethreatening tumors. Doctor know how to use beams of radiation to destroy unhealthy cells in the body. They also know how to protect patients and themselves from harm as they use these radioactive beams. Scientists use radiocarbon dating to find out how old a mammoth’s tooth （猛犸象 ) is. Radiocarbon dating is one method that tell us the age of some fossils.（化石） Sc
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