Unit 2 English around the world单词学案1.recognize (vt.):(1)to know and remember sb. or sth. one has seen beforeHe didn’t recognize his old friend at once.Can you recognize his handwriting?(2)recognize(vt.) to accept as being realThis group of workers recognized him to be / as their great leader.(Passive voice?)★recognize与knowrecognize指原来很熟悉，经过一段时间的隔离或离别的原因后又重新认出来。

know是延续性动词，指相互十分熟悉和了解。

eg: We haven’t met for 20 years, but we recognized each other at first sight.I have known this tailor for 30 years.【考题链接】—Oh, it’s you! I ___ you.—I’ve just had my hair cut, and I’m wearing new glasses. (2006全国卷)A. didn’t recognizeB. hadn’t recognizedC. haven’t recognizedD. don’t recognize (Key: A)2. request request (n.): a polite or formal demand for somethingrequest (v.) ask for something politely or formally(用于结构：request sb. to do要求某人干某事…；request that (should ) do….后接宾语从句，在宾语从句中使用虚拟语气。

即：(should) do);request sb from sth)You’d better request them to help when you are in trouble.I’m goin g to the supermarket, any requests?The workers in that factory requested a rise in the salary.The staff requested that he (should) consider his decision again.We requested the old pianist ___ in public again.A. didn’t playB. not playC. wouldn’t playD. wasn’t playing【考题链接】Visitors ___ not to touch the exhibits.(2001高考卷)A. will requestB. requestC. are requestingD. are requested (Key: B D)mand n.&v(1) (n.) I. an order given to a person or an animaleg You must obey th e captain’s commands.(2) (n.) II. Control over a situation or a group of people.eg He has 1,200 men under his command.(3) (n.) III.Your knowledge of sth; your ability to do or use sth, especially a languageeg The students who are fit for the job must have (a) good command of English.(4) (v.) ordereg He commanded his soldiers to stand at attention.He commanded his soldiers (should ) stand at ease.动词结构总结：(1) ___________________ (2) _________________________(Key: (1) command sb to do sth (2) command sb (should) do sth4. base (1)base (vt.) to build or place, to use as a base for sth用于结构：be based on\upon 以…为基础The film is based on a story written by Lawrence.One should always base his opinion on facts.He based his hope on the good news.(2)base(n.)lowest part of anything. eg We had a rest at the base of the mountain.5.official adj an ----- language/visit/letter6.native adj n. native speakers/language/Beijinger a Beijing native7.actually adv.(=in fact, as a matter of fact) Actually it's we that owe you a lot.actual adj actual cost/ figures/life8.gradually adv. (little by little ,step by step) Gradually house prices are going up.gradual adjI’m glad to say that you are making gradual progress.There has been a gradual increase in the number of families owning refrigerators.9. fluent adj He is fluent in five languages. They gave a ----performance last night. fluently adv. She can speak German fluently.10 . straight adj&adv straight (a dv.) by direct route; immediatelyeg: Go straight on and you will find the shop on your leftI’ll come straight to the point ---- your work isn’t good enough.straight (adj.) not bent . eg: The boat is sailing in a straight line .tter adj. (反义词former) Did he walk or swim? The latter seems unlikely.12. eastern/southern/northern/northeastern13. African- --Africa Asian –________ ________--Canada ________---Australia________---Spain Germany---_________14.frequent/frequentlyMike is a frequent visitor to the Smiths. Mike calls on the Smiths frequently. Useful phrases and expressions:1.because /because ofbecause of: 介词短语，后接名词、代词、动名词；because 连词，连接从句。

I find that life is full of hope because you are concerned about me,.Because of your concern, I find that life is full of hope.The boy went back home through the woods because it rained heavily,Because of the heavy rain, the boy went back home through the woods.e upcome up : get close; be raised(be put forward); (of plants)to appear above the soil过来；被提出；出现Please come up to our English corner when you are free.A lot of questions came up at the meeting.The grass is just beginning to come up.★常见的与come搭配的短语come across 偶然遇到come about 发生出现come on 快来、加油come out 出来、出版come at 攻击、向...扑来come back to life 复活3. at present: now; at this time, at this momentShe’s busy at present and can’t speak to you.At present he is a professor of mathematics at Cambridge.present adj. 现在的；出席的；到场的；He doesn’t know how to deal with the present situation.The people present at the meeting are advanced workers.He was present at the meeting the other day.4. make use ofmake use of --- to use sth. especially in order to get an advantage 使用、利用We should make use of time to finish the work.make full/good use of 充分利用Since you’ve got a chance, you must make full use of it.We could make better use of our resources.★注意make use of 的被动语态。