八年级下英语第4单元单词解析
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compare
1 compare …with…将…与…比较 compare…to… 把…比作… Don’t compare yourself with others. 不要与别人比较。 Children are compared to national flowers.
crazy
1 不理智的,疯狂的 You must be crazy to walk at night with no lights. 2 热衷的,狂热的 She is crazy about pop music. 3 crazily adv. 疯狂地,热衷地
compete
1. competition 竞赛,比赛 2. competitor 参赛选手 3. enter a competition 参加比赛
compete with sb … against … … for… Teams from many countries compete in the World Cup. 很多国家的球队参加世界杯比赛。
instead
1 instead 为副词,常放在句首或句尾 I will go instead. 2 instead of 为介词短语,后面接名词、代词,介 词短语或动名词形式 She wrote to him instead of calling him. = She didn’t call him. She wrote to him instead.
deal
1 协议;交易 I did a deal with my parents on housework. 在家务上我与父母达成一项协议。 2 big deal 重要的事 3 处理, deal with ,与疑问词how 连用 How will you deal with the homework?
cause
Smoking can cause lung cancer. 吸烟能导致肺癌。 What was the cause of the accident? You have no cause to complain. 辨析: cause: 引起某种结果的原因,后接of reason: 指决定做某事或采取某项行动的理由。 excuse: 辩解,借口
continue
1持续,继续存在,接名词、动名词、不定式或名 词性从句做宾语 How far does the road continue? 这条路有多长? continue doing sth 继续做原来的事 = go on doing sth continue to do sth 继续做某事(另一件事) After finishing Unit 3, let’s continue to learn Unit 4. 辨析:continue; go on; last
communication
1 communicate with sb 与某人交流、沟通、联络 2 communicate to sb 向某人报告、通知、传达 For better communication , I also communicate with him by phone. 为了更好地沟通,我还和他电话交流。
proper/explain
He never explains anything properly. 他从来不好好解释任何事情。
explain oneself 解释,交代清楚 explain sth to sb 向某人解释某事 Alice usually explains the new words to us. explanation n.解释,说明
perhaps
maybe =perhaps, 位于句首或句末 Maybe/ Perhaps it will rain tomorrow. probably 可能性大于maybe /perhaps. He will probably come tomorrow. possibly 较probably 可能性小 在肯定句里可能性很小,在否定、疑问句中与 can /could 连用,表示“无论如何不”。 Could he possibly agree? 他难道会同意吗?
continue 指进程在时间或空间上的延续,有时也可指短 暂停止后继续进行。 He continued the work for three hours. go on : go on to do sth = continue to do sth go on doing sth = continue doing sth last: 说明某一动作要延续一段时间。 She won’t last long in that job. 那份工作她做不了多久。
clear
1.清楚易懂的;晴朗的 She spoke in a loud clear voice. 她说话声音既洪亮又清楚。 2. 清澈的;透明的 clear water 清澈的水; clear glass 透明的玻璃 3. clearly 清楚地,明白地 辨析:clean 干净的;清洁的;而clear表清澈 clean water 干净的水(强调没有尘污) clear water 清澈的水(强调清澈、透明)
guLeabharlann Baiduss
1 v. Can you guess how old he is? 2 n. If you don’t know the answer, have a guess! 可数名词,猜想,猜测 3 主句含有:I/We guess/think/believe/suppose… + 从句时,要进行否定前移 I guess he can swim. I don’t guess he can swim. I guess he can swim, can’t he?
单词讲解
allow
allow sb to do sth 允许某人做某事 sb be allowed to do sth 某人被允许做某事 allow doing sth 允许做某事 allow sb in/out 允许某人进入/出去 Teenagers shouldn’t be allowed to smoke. 不应该允许青少年吸烟。 辨析 let sb do sth 语气较弱,不能用于被动语态
nervous
比较级:more nervous 最高级:most nervous be nervous of/about …对…感到紧张 They are nervous of / about their test.
offer
1.offer sb sth/offer sth to sb向某人提供某物 注:可以接受,也可以不接受 2. offer to do sth 提议去做某事 I offered her a book. 我给了她一本书。 He offered to help me. 他向我提供帮助。 辨析:provide强调为应付意外、突发事件、紧急情况 等做好充足准备而“提供,供给”,多数情况是免 费的。 provide sb with sth 为某人提供某物 provide sth for sb
older/elder
1 older, 指年龄较大、较老,也指较旧 Tom is two years older than John. This book is older than that one. 2 elder,年长的,只用做定语,不用作表语 He is my elder sister. We should respect our elders. 我们应该尊重长辈。
argue
1通常与介词about 和with 连用,不及物动词 argue with sb about sth 为某事与某人争辩 2 have an argument with sb I had an argument with him.
cloud
Look at those dark clouds. It’s going to rain. 看那些乌云,要下雨了。 cloud, (像云的)尘土或烟雾 clouds of smoke 一团团的烟 cloudy 多云的 a cloudy sky
return
1. return=come back/go back return to= go back to= come back to 2. return, 归还;还给 return sth to sb / return sb sth 归还某人某 物 Please return the money to her. 注:是非延续动词,不可以与表示一段时间 的状语连用。
opinion
1.同义词:idea ; thought; view What’s your opinion of my work? 对我的工作您有什么意见? 2. in one’s opinion = I think… 在某人看来 In my opinion, you are right. 我认为你是对的。 insist on one’s opinion 坚持某人的观点
skill
1. 技艺,技巧 It needs a great skill to fly a plane. 开飞机需要很高的技巧。 skillful 孰练的 扩展: Practice makes perfect. Skill comes from practice.
quick
1 Have a quick look. He took out his book quickly. 辨析: fast : 形容词/副词, 强调动作速度之快。 quick : 形容词,着重动作迅速发生或完成 即刻行动,豪不耽误 soon : 强调时间,很快;马上,即不久以后 将发生的某个动作或某种情况。 I’ll write to you as soon as possible.