1. chemist n. 药剂师，化学家 chemistry n. 化学 chemical n. 化学物质 2. revolution n.革命 adj. revolutionary 革命的 The American Revolution gave independence to the 13 colonies. The automobile caused a revoluti
on in transport. 在…….方面的变革 3. counter n. 柜台，计数器，反驳 over the counter 成交；直接交易 counter attack 反攻，逆袭 under the counter 私下出售的；暗中作成的；违法的；走后门 vt. 反击，还击： He countered my blow. 他对我的强击进行还击。 对抗，反对；反驳；抵制；制止 He countered my plan with one of his own. 他提出自己的计划与我的计划抗衡。 vi. 反抗，进行反击，还击；反驳： I hit him and he quickly countered. 我击中他，他马上进行还击。 4. beneficial adj. 有益的，有用的 对…..有益 be beneficial to / be of benefit to/ benefit sth. 5. vital adj. be vital to/for 对……极为重要/必不可少 这件事对我们来说至关重要。 This matter is of vital importance to us. 6. potential danger / disaster / problems / consumers/crisis 潜在危险/灾难/问题/顾客/危机 develop one’s potential abilities 发展某人的潜能 7. circulate vt./vi. 循环，传播，散布，传递 n. circulation 过去式 circulated 过去分词 circulated 现在分词 circulating Water circulates through the heating system and comes out of the pipe. Blood circulates through our bodies and provides nutrition for each organ. The teacher circulated the roll for everyone to sign before the lecture began.
9. application n.应用，申请，涂抹，外敷 v. apply n. applicant 申请者 Chemistry has many practical applications in our daily lives. Many people have had to make an application for a housing loan as a result of the increased housing price. The application this new drug is said to reduce the risk of cancer. 10. approval n. 批准，赞成 v. approve approve the plan 通过计划 approve of the plan 赞成计划 The plan for organizing an outing has the teacher’s approval. All the members of the committee gave their approval to the plan. 11. accelerate vt./vi. 使加速，加快 =step up/speed up n. acceleration The government has taken many measures to accelerate economic recovery. Farmers are instructed to use special chemicals to accelerate the growth of crops. 12. mass n. 1) 团，块，堆 A great mass of rock had fallen from the cliff and now blocked the road. 2) 众多，大量 I’ve masses of work to do.
3) 主要部分，大部分 The mass of public opinion is in favor of the new foreign policy. 4) 质量 A liter of gas has less mass than a liter of water. adj. 大众的 Mass education is essential in promoting democracy. 大量的，大批的 We want to promote literacy on a mass scale. v. 聚集起来 Dark clouds massed and we expected rain. 拓展：写出下列划线词组的含义 1) They are good citizens in the mass. 总的来说 2) The garden was a mass of color. 充满 3) The mass of workers do not want this strike. 多数 13. bleed (bled.bled) vi. 流血，失血 n. blood 血液
M7U2 Reading 预习案
预习任务： 1 熟读课文，理解其大意. 2 完成课本练习 A，C1&2，D，E 3 划出文中的重点短语和句型，记忆并掌握其用法 二， 短语 1.集中于……上 2.打开 3.很有可能 4.挽救……的生命 5.由……制成 6.发生 7.以粉末形式 8.以片剂形式 9.变成世界上最畅 销的止痛药 10.减少心脏病的发作 11.延长人类寿命 12.被认为是 13.在当代 14.在……上试用某物 15.使……变纯 16.成功地做成某事 17.大量 18.由于被广泛使用 一，
三， 重点句型 1.The article will focus on two drugs that started revolutions in medicine. 2. If you open up any medicine cupboard or go to any medicine counter in the world, it is likely that you will find aspirin and penicillin. 3.Both of these medicines have saved millions of people’s lives and have proved beneficial to mankind since they were invented. 4. Nearly 3,500 years ago, people chewed on leaves or drank a kind of tea made from leaves possessing a special chemical to reduce body pains and fever. 5. The first trials of this medicine took place in 1899, when the company Hoffmann worked for began distributing the medicine in powder form to physicians to use with patients. 6.Not only has aspirin proved vital for reducing fever and helping stop pain, but there are also other things that aspirin can help with. 7.If penicillin had not been available, many people would have died from sickness or even small wounds.
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