1、8B unit8 重点知识点总结及选词填空完成句子专项练习重点知识点总结及选词填空完成句子专项练习 一、一、 重点单词和短语重点单词和短语 1.dig dug dug 挖 2.serious adj. 认真的,严肃的 serious adj. 严重的 3.turn off 关上(开关) turn on 打开(开关) 4.wise adj. 明智的,充满智慧的 wisely adv. 明智地 5.allow sb to do sth 允许某人做某事 be allowed to do 6.cut down 砍到 cut out 剪出 cut in on sb 打断,插话 cut into 把切成
2、7.punish v. 惩罚 be punished 被惩罚 8.depend on / upon 依靠,取决于 9.rich = wealthy 富有的,丰富的 10.run out 用完,耗尽(我被动语态) 11.difference n. 差异,不同之处 make a difference to sb/sth 对有影响,起作用 make no difference to sb/sth 对没有影响 12.live v. 生活,活着 living adj. 活的,活着的(作定语) alive adj. 活着的 (只作表语) be / keep alive 13.harm v. / n. 伤害
3、 harmful adj. 有害的 do harm to =be harmful to 对有害 14.survey n. 调查(可数) do a survey 做调查 15.in place 在正确位置上 16.carelessly adv. 满不在乎地,粗心地 carefully adv. 认真地,细心地 17.reduce air pollution 减少空气污染 18.by + doing sth 通过.方式或方法 19.be separated into 被分开成 20.sell 卖,销售 sth be sold 被卖/销售(被动语态) sell well 畅销 (无被动语态) sel
4、l out 卖光,售完(有被动语态) be sold out 被卖完 21.be fined 被罚款 22.will be done be going to be done 将被(一般将来时的被动语态) 二、 选词填空 从方框中选择恰当的词或短语并用其正确的形式填空(每个词或短语只能用一次)。 1.We should remember _ the lights before leaving a room. 2.If you dont obey the traffic rules, you _by the police. 3.To do or not to do, it _ you. 4.The
5、se new types of energy will cost little and _. 5.-Is there _? -No, nothing. 6.Air pollution _ our health. 7.We should use the natural resources _. 8.To protect the earth, everyone can _. 9.More and more rivers _ over the past few years. 10.Nobody are allowed _ trees now. 三、 完成句子 1. 我们应该做什么来减少空气污染 Wh
6、at should we do _? 2. 我们可以缩短洗澡时间来节约水资源 We can take shorter showers _. 3. 在上海垃圾被分类回收 The rubbish _ groups and then recycled in Shanghai. 4. 每个人都依靠着丰富的资源生活 Each of us _ the rich resources _. 5. 我们应该尽力去保护环境 We should _ the environment. 6. 吸烟有害健康 Smoking _ our health. 7. 树木可以保持水土不被流失 Trees can help _. d
7、epend on ; be harmful to ; cut down ; pollute ; turn off ; not run out ; make a difference ; be fined ; something serious ; wise ; 8. 当电脑在不用的时候,我们应该关闭电源 We should _ the power when the computer is not _. 9. 如果我们乱扔垃圾,我们会受到惩罚 If we _, we _. 10. 保护环境,人人有责 Its our duty _. 答案答案 二、选词填空 1.to turn off 2. wil
8、l be fined 3.depends on 4.wont run out 5.anything serious 6.is harmful to 7.wisely 8.make a difference 9.have been polluted 10.to cut down 三、完成句子 1.to reduce the air pollution 2.to save water 3.is separated into 4.depends on to live 5.try our best to protect 6.is harmful to 7.keep the soil in place 8.turn off in use 9.drop litter everywhere will be punished 10.to protect the environment