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111SENTENCE EXPLANATIONS 请和你的同学一起认真分析下列句子，补全所缺内容。1. That probably does not seem much to you or me, but it is a rapid increase when compared to other natural changes. (P26) 【点拨】a. 本句是一个由_连接的并列句；b. 在第二个分句中，when compared to other natural changes作时间状语，when后省略了it is。在when引导的时间状语从句中，如果从句的主语与主句的主语一致，且谓语含有be动词时，可将主语与be动词省略。2. There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.(P26)【点拨】a. 本句的主句是There is no doubt，从句是两个由that引导的同位语从句；b. 第二个从句包含一个强调句型it is . that .，被强调的部分是 _。【仿写】 _（毫无疑问Andy不能按时完成任务。）3. On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. (P27)【点拨】a. 本句的主句是_；b. who引导定语从句；c. 定语从句中and连接两个并列的谓语_和believe；d. that引导宾语从句，作believe的宾语。【翻译】 但另一方面，像George Hambley这些人，他们反对这个观点，认为我们没有必要担心空气中的高二氧化碳含量。4. It will make plants grow quicker; crops will produce more; it will encourage a greater range of animals all of which will make life for human beings better. (P27)【点拨】a. 破折号前为三个并列的简单句；b. 破折号后是一个定语从句，其中which指代前三个句子的内容。Key:1.【点拨】but2.【点拨】human activity【仿写】There is no doubt that Andy cant finish the task on time.3.【点拨】there are those; are opposed to 111
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