高二英语教案：高二英语下册Unit13复习教案(7)
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▲break down可作“(机器等)坏了”解。如：① Then the car I was in broke down. 那时我乘坐的汽车坏了。②When the pumps broke down, they would repair them for us. 水泵坏了，他们就帮我们修。③ The washing machine seems to have broken down again. 洗衣机好像又坏了。 ▲break down有“中断”之意。如：① He broke down in the middle of his speech. 他讲到一半儿停了下来。② Telephone communication with other cities has broken down. 和其他城市的电话联系中断了。③ That is how the talks broke down. 谈判就是那样中断的。 ▲break down还“打破”“摧毁”“制服”之意。如：① Firemen had m break down the wall to save the child. 为了救孩子，消防队员不得不把墙推倒。② We have broken down the resistance of the enemy. 我们已经打垮了敌人的顽抗。③The police tried to break down the prisoner's opposition.警察试图压制囚犯的反抗。 15. Density is the relationship between mass and volume and is measured in kilogrammes per cubic metre. 密度是指质量和容量的相关程度。它的测量单位是每立方米的公斤数。(p.20 Density 第1行) ▲ measure的用法: (1) 有……之大小 This room measures 6 metres by 4. 这个房间有6米长4米宽。 (2) 测量 (长度、大小、重量等) The tailor measured me for a suit. 裁缝给我量尺寸做好西装。 (3) 措施；办法 ①They took strong measures against reckless drivers.他们对于鲁莽的驾驶员采取强硬的手段。②If a substance has a higher density, say 5000 kg／m3, it will not float on water. 如果一种物质的密度比水的大，比如5000 kg／m3，那它就不能浮在水上。 16. Marine animals and plants take advantage of the density of water. 海洋动物和植物利用了水的密度的特性。(p.20 Density 第4行) ▲take advantage of意为“利用”“占便宜”。如：① They often took advantage of his lack of experience.他们常常利用他缺乏经验这个弱点。② He took advantage of his friend's kindness.他利用了他朋友的好心肠。③ He didn't want to take unfair advantage. 他不愿意占人便宜。④Jane took advantage of the lunch hour to finish her homework.珍利用午饭时问完成家庭作业。⑤ We took advantage of the fine weather to air quilts. 我们趁好天气晾晒被褥。⑥ They took full advantage of the school's facilities.他们充分利用学校的设施。 【注】take advantage of sb. 意为“欺骗(捉弄)某人…”“利用某人(的弱点)”。如：① He's taking advantage 0f her good nature.他在利用她秉性善良的弱点。② She took advantage of him even after they were divorced. 即使在离婚后，她还在欺骗他。 【注】take advantage of意为“利用”，而have the advantage of则意为“胜过……” “对……具有优势…” “具有……的优点”。试看下列例句：① He has the advantage of me in experience. 他在经验方面胜过我。② Cereals have the advantage of being rich in iron. 麦片粥具有富含铁质的优点。 【注】表示“利用(机会)”或“利用(时间)”还可以用take the opportunity，take，(one's) time。如：① He likes to take his time over breakfast.他喜欢不紧不慢地吃早饭。②Some of the soldiers took the opportunity the next day to go ashore.第二天有些士兵利用这机会上岸去了。 (责任编辑：admin) |
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