Unit 4 Global warming 1.random(adj.) 胡乱的;任意的2.range(n.) 种类;范围3.glance(vi.) 看一下;扫视(n.) 一瞥4.widespread(adj.) 分布广的;普遍的5.average(adj.) 平均的6.advocate(vt.) 拥护;提倡;主张7.casual(adj.) 随便的;漫不经心的;偶然的8.circumstance(n.) 环境;情况9.refresh(vt.) 使恢复;使振作10.phenomenon(n.)现象→phenomena(pl.)现象11.quantity(n.)量;数量→quality(n.)质量12.tend(vi.)趋向;易于;照顾;(vt.)照顾;护理→tendency(n.)倾向;趋势13.oppose(vt.)反对;反抗;与(某人)较量→opposed(adj.)反对的;对立的14.consequence(n.)结果;后果;影响→consequently(adv.)因此;所以15.state(vt.)陈述;说明→statement(n.)说明;说法;表白16.steady(adj.)平稳的;持续的;稳固的→steadily(adv.)平稳地;持续地17.existence(n.)生存;存在→exist(vi.)存在18.contribution(n.)贡献→contribute(v.)贡献;撰稿1.come_about 发生;造成2.subscribe_to 同意,赞成,订阅3.go_up 上升;增长;升起4.be_opposed_to 反对……5.keep_on 继续6.on_the_whole 大体上;基本上7.on_average 平均来看 below/above_average 低于/高于平均水平8.put_up_with 忍受;容忍9.and_so_on 等等10.quantities_of 大量的11.result_in 导致12.even_if 甚至13.on_behalf_of 代表……一方;作为……的代言人14.so_long_as 只要11.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.毫无疑问,地球正在变暖。而地球变暖正是人类活动导致的,并非是一种无规律的自然现象。名师指津:There is no doubt that...毫无疑问,that 引导同位语从句。例句仿写: 毫无疑问,收音机和电视机是信息交流的重要方式。There_is_no_doubt_that radio and television are important means of communication.2 . Even if we start reducing the amount of carbon dioxide and other greenhouse gases , the climate is going to keep on warming for decades or centuries.即使我们开始减少二氧化碳和其他温室气体的含量,在未来几十年或几个世纪内,气候仍会持续转暖。名师指津:even ...