1. 学习单词，注意重点单词的用法并灵敏运用这些单词。
2. 掌握signal的用法及与其他词的区别。
重点：solve, explore, anyhow, signal, arise难点：signal的用法及区别。
一、重点单词【单词学习】1. solve v.解决；解答★★★★solve a difficulty 解决困难solve problem/question 解答问题solve puzzle 解谜Instead, let him attempt to solve things by himself.相反，让他自己试着解决一些事情。
Help me to solve my financial troubles. 请帮我解决经济上的困难。
I solved the word puzzle in three minutes. 我用三分钟解出了那个字谜。
solution n. 解决方法；解答，后面常跟of，to，for。
The solution to the problem required many hours.解决这个问题需要好几个小时。
This is the solution of/to/for the problem.这是这个问题的解决方案。
He was very bright and _________ the crossword in ten minutes.A.solutionB. solvedC. settledD. ended答案：B思路分析：solve the crossword解答填字游戏，句意：他很聪明，非常钟就解出了这道填字游戏。
应选B。
2. explore v. 探测；探险★★★explore for oil 勘探石油explore into 探究explore a secret 探究机密We must explore all the possibilities.我们必须讨论所有的可能性。
必修2 Unit 3 Computers一、教学内容必修2 Unit 3 Computers（一）重点单词（二）重点短语（三）重点句型二、知识精讲（一）重点单词1. simplify v. 简化; 使易懂This dictionary tries to simplify the meanings of words.这本词典努力把词意简化。
He tried to simplify the story for the younger audiences.他尽力简化这个故事便于年轻读者理解。
知识拓展：simple adj. 简单的; 朴素的simply adv. 简单地；简明地They live a simple and happy life.他们过着简朴而幸福的生活。
The questions can be answered quite simply.这些问题回答起来很容易。
2. solve vt. 解决，解答Help me to solve my financial troubles.请帮我解决经济上的困难。
I solved the word puzzle in three minutes我用三分钟解出那个字谜。
知识拓展：There’s no easy solution to this problem.没有解决这个问题的容易的方法。
即学即用：He was very bright and ______the crossword in ten minutes.A. solutionB. solvedC. settledD. ended答案：B3. total1) n. 总数；总计You got 47 points on the written examination and 18 on the oral, making a total of 65.你笔试得了47分，口试得了18分，总分65分。
The repairs come to over $ 500 in total.修理费总共500多美元。
2021年高中英语 Unit3 puters（二）新人教版必修2本讲目标被动语态被动结构：be+done一般现：____________+done一般过： ____________+done一般将： ____________+done现完： ____________+done过完： ____________+done题一：In the last few years thousands of films _____ all over the world.A. have producedB. have been producedC. are producingD. are being produced题二：Experiments of this kind _____ in both the U.S. and Europe well before the Second World War.A. have conductedB. have been conductedC. had conductedD. had been conducted题三：His sister left home in xx, and___ since then.A. had not been heard ofB. has not been heard ofC. had not heard ofD. has not heard of题四：— How long _______ the book ______ so far?— Ten days and I will return it tomorrow.A. was; borrowedB. has; borrowedC. has; been borrowedD. has; been kept题五：He is said________ to 5 years in prison before.A. having been sentencedB. to be sentencedC. being sentencedD. to have been sentenced题六：When I got there the accident _____already so I didn’t know who should be responsible for it.A. has been happenedB. has happenedC. had been happenedD. had happened题七：___many times, the boy still did not know how to do it.A. Having taughtB. TeachingC. Having been taughtD. Had been taught题八：I should very much like to have gone to that party of theirs, but ____.A. I’m not invitedB. I have not been invitedC. I was not invitedD. I had not been invited能力提升与拓展题九：Americans are proud of their variety and individuality, yet they love and respect few things more than a uniform, whether it is the uniform of an elevator operator or the uniform of a five-star general(将军). 1Among the arguments for uniforms, one of the first is that in the eyes of most people they lookmore professional than civilian（百姓的）clothes. People have bee conditioned to expect superior quality from a man who wears a uniform. 2 Faith in the skill of a garage mechanic is increased by a uniform. What easier way is there for a nurse, a policeman, a barber, or a waiter to lose professional identity（身份）than to step out of uniform?3 They save on other clothes. They save on laundry bills. They are tax-deductible（可减税的）. They are often more fortable and more durable than civilian clothes.Primary among the arguments against uniforms is their lack of variety and the consequent loss of individuality experienced by people who must wear them. Though there are many types of uniforms, the wearer of any particular type is generally stuck with it, without change, until retirement. 45 Though they are long lasting, often their initial expense is greater than the cost of civilian clothes. Some uniforms are also expensive to maintain, requiring professional dry cleaning rather than the home laundering possible with many types of civilian clothes.A. Americans think highly of uniforms.B. Why are uniforms so popular in the United States?C. When people look alike, they tend to think, speak, and act similarly, on the job at least.D. Uniforms also have many practical benefits.E. Uniforms also give rise to some practical problems.F. The television repairman who wears a uniform tends to inspire more trust than one who appearsin civilian clothes.G. People’s identity can be recognized more easily by their uniforms.puters(二)讲义参考答案本讲目标被动语态题一：B 题二：D 题三：B 题四：D 题五：D 题六：D 题七：C 题八：C能力提升与拓展题九：1. B 2. F 3. D 4. C 5. E35865 8C19 谙h28359 6EC7 滇n {20768 5120 儠39968 9C20 鰠38012 947C 鑼+37119 90FF 郿39521 9A61 驡。
高中必修二英语Unit3Computers重点知识练口语前我们需要明确目标，是为了通过考试?为了工作?还是出国深造、移民等?一旦确立好目标，我们也就有了学习的方向和动力。
下面是小偏整理的高中必修二英语Unit3Computers重点知识，感谢您的每一次阅读。
高中必修二英语Unit3Computers重点知识重点词汇、短语solve解决;解答from…on从…...时起asaresult结果so…that如此…以至于explore探索，探测，研究anyhow无论如何，即使如此goal目标，球门，得分humanrace人类signal发信号，信号type类型，打字inaway在某种程度上arise出现，发生withthehelpof在…...的帮助下electronic电子的dealwith处理watchover看守，监视rise/arise/arouse/raise的区别单词词性及意义过去式过去分词现在分词arise(vi.)出现,发生arosearisenarisingarouse(vt.)唤醒,激起arousedarousedarousingrise(vi.)升起,上升roserisenrisingraise(vt.)举起,饲养raisedraisedraising重点句型1.certain和sure的句型sb.besure/certainof…=sb.besure/certainthat从句：某人确信…besure/certaintodosth.肯定会做…It’scertainthat从句肯定会例如：It’scertainthathewillsucceed.=He’ssure/certaintosucceed.他肯定会成功的。
I’msure/certainofhissuccess.=I’msure/certainthathewillsucceed.我确信他会成功的。
2.主语+be+adj+todoThequestioniseasytoanswer.状语从句的省略在when,while,if,unless,though,once等引导的状语从句中，如果从句的主语和主句的主语一致,且从句中的谓语含有be动词时,为了使句子简洁,可省略从句中的主语和be动词。
