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1、Period ThreeUsing Language1 拓展归纳confuse sb.使某人困惑(糊涂)be confused by sth.被某(事)物搞糊涂了become/get confused困惑，不知所措confuse.with/and.把和混淆confuse black with white混淆黑白confusable adj.会被混淆的，会被弄糊涂的confused adj.困惑的，不知所措的；混乱的confusing adj.令人困惑的，难以理解的confusion nU混乱，混淆；困惑 完成句子(1)这个难题使他困惑。The difficult question confus
2、ed_him.(2)人们被大量的信息搞糊涂了。People were_confused_by a lot of information.(3)我把她和她妹妹弄错了，因为她们长得太像了。I confused_her_with_her_sister because they were so alike.2 拓展归纳regret to do sth.遗憾/抱歉要去做(do动词一般是say，tell，inform，announce等这样的词)regret doing sth.后悔曾经做过某事regret not to have done sth.后悔没做过某事regret that.遗憾/后悔have
3、 no regrets没有遗憾It is a matter for/of regret that.令人遗憾的是It is to be regretted that.使人遗憾的是to ones regret(对某人而言)可惜的是用所给词的适当形式填空(1)He bitterly regretted ever having_mentioned (mention) it.(2)I regret to_say (say) that Im unable to accept your kind invitation.(3)I have no regrets (regret) about leaving N
4、ewcastle.(4)Emma shook her head regretfully (regret) when she heard the result.3 拓展归纳reduce (.)to.(把)减少到reduce (.)by.(把)减少了reduce sth. to.使成为(某种状态)reduce sb. to (doing) sth.迫使某人陷入(不佳状态)；使某人不得不reduction n减少，缩减；折扣，减价reductive adj.减少的；缩减的完成句子(1)商店已经降低了商品的价格，所以现在是买东西的好时候。Theyve reduced_the_prices in the
5、 shop，so its good time to buy.(2)她的体重减轻了5千克。She reduced_her_weight by 5 kilograms.(3)炸弹使该市成为废墟。The bombs reduced the city to_ruins.(4)她见到那情景便哭了起来。She was_reduced_to_tears at the sight.4These chemicals in the food supply build up in peoples bodies over time.(P14) build up，put up，set up(1)build up逐步建立
6、，建造，建设，常指建造较大的物体。(2)put up着重指建造、搭起一个具有高度的具体的物体，口语中set up和build也有此意。(3)set up开办，建立，常和表示组织、机构、团体等意义的名词连用，与found基本相同，但found更着重打基础。完成句子(1)各方面的压力越来越大，他因负荷太重有好几个星期没上班了。All the pressure built_up and he was off work for weeks with stress.(2)试试让他增进对自己的信心。Try and build_up_his_confidence a bit.(3)他们的话在面试后增强了我的
7、信心。Their words built_up my confidence after the interview.(4)在十年拼搏后他们建立了这家公司。They built_up_this_company after ten years struggle.5 拓展归纳lead sb. to.引导某人去(地方)lead sb. to do sth.引导某人做某事lead a.life过的生活result from产生于；因引起lie in在于，由于have a good lead over领先于完成句子(1)这条小路通到那个村庄。The path leads_to the village.(2
8、)我们的产品仍领先于我们的竞争者。Our product has_a_good_lead_over our competitors.(3)我们队在前半场领先。Our team was in_the_lead at halftime.(4)什么使你相信我病了？What_led_you_to_believe I was ill?6 拓展归纳come into focus(某物)轮廓明显，清晰；(问题)突出in focus焦距对准；清晰out of focus焦距没对准；模糊the focus of attention注意力的中心；焦点focus on(concentrate on)注意；关注foc
9、us a camera/telescope on/upon使照相机、望远镜聚焦于focus/fix/concentrate ones attention/mind/eyes on/upon使某人的注意力/心思/眼睛专注于用focus on的适当形式填空(1)The discussion focuses_on three main problems.(2)All his attention was_focused_on one thing onlyhow to solve the problem of water shortage.(3)In the scene，the camera focus
10、ed_on the actors face.7 Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil,and then leaving it in the ground to become a natural fertilizer for the next years crop.(P14)拓展归纳stop sb. (from) doing sth.阻止某人做某事keep sb. from doing sth.阻止某人做某事prot
11、ect sb. from.保护某人不受侵袭keep sb. doing sth.让某人一直做某事完成句子(1)大雨使我们无法外出。The heavy rain stopped/prevented_us_(from)_going_out.(2)妈妈不让我单独外出。Mother kept_me_from going out alone.(3)雨伞可以保护你不被雨淋。The umbrella can protect you from the rain.1 Recently,however,scientists have been finding that longterm use of these
12、fertilizers can cause damage to the land and,even more dangerous,to peoples health.然而，最近科学家发现长期使用这些肥料会造成土地受损，甚至更危险的是，会对人们的健康造成危害。用法点拨(1)have been finding是现在完成进行时。现在完成进行时与现在完成时是有区别的，前者说明动作从过去某段时间到现在一直进行着，而且有可能还将持续下去；后者强调的是一个完成的动作，用于说明动作的结果，而不是动作本身。John has been painting the ceiling.约翰一直在粉刷天花板。John ha
13、s painted the ceiling.约翰把天花板粉刷完了。(2)本句中的情态动词can表示理论的可能性。肯定句中，can可以表示客观的(理论的)可能性，并不涉及具体某事是否会发生，此种用法常常可以说明人或事物的特征；要表达具体某事实际发生的可能性时，不可用can，须用could，may，might。Accidents can happen on such rainy days.这种下雨的天气可能会发生事故。(客观的可能性)Peter may come with us tonight，but he isnt sure yet.彼得今晚可能和我们一起来，但他还没确定。(实际可能性，不用ca
14、n)用所给动词的适当形式填空(1)I wont tell the students the answer to the maths problem until they have_been_working (work) on it for more than an hour.(2)They had_been_working (work) on the program for almost one week before I joined them，and now we are_still_working (still work) on it as no good results have co
15、me out so far.(3)Are you still busy?Yes，I am_finishing (finish) my work and it wont take long.2 Crops such as peas or soybeans put important minerals back into the soil,making it ready for crops such as wheat or corn that need rich and fertile soil.像豌豆、大豆一类的农作物将重要的矿物质带回土壤，使之适宜于种植那些要求土壤肥沃的农作物，例如小麦或玉米。用法点拨making it.是现在分词短语作结果状语。现在分词作结果状语时，其逻辑主语可以是句子的主语，也可以是整个句子。By 182
