伴你成长高二新世纪（上）Module Two Unit 4教材精讲：1掌握-ing分词完成式和被动式的用法；2掌握本课出现的重要词汇。
scale, gymnastics, demonstrate, peak, witness, touch, achieve, giant3. 掌握本课出现的重要短语。
in terms of, every four years, will power, come out number one, one. . . after another, at the turn off, come true4.掌握本课出现的重要句型。
It is not until. . .that5.能力要求。
按空间顺序来组织段落。
语言点详讲：1.-ing分词的完成式的用法-ing分词的完成式用作状语，强调一个动作在另一个动作开始前已经完成，或强调第一个动作持续一段时间后发生第二个动作，也强调两个动作之间有一段间隔。
例: Having originally created the environment we live in, plants may be called on once more to save it.• -ing分词的完成式用作宾语时，强调它表示的动作在谓语所表示的动作之前，但有时，也可用分词的一般式代替完成式例：Jack admitted having broken the window in the class room.=Jack admitted breaking the window in the classroom.2.-ing分词的被动式的用法-ing分词的被动式可用作主语或宾语．它的逻辑主语是它所表示动作的承受者。
例：I am not used to being treated like that.-ing分词的被动式还可用作定浯、时间状语或原因状语，含有被动、完成两层意思。
例：It is said that the book being written by the famous film star will be published next month.Being examined by the doctor，I felt nervous.3．scale的用法n. the relative size，extent，etc；a system of grading people or things规模．等级例：The business had to be reduced in scale.【拓展】相关词组on a big/large/small scale大／小规模地out of scale 不合比例4．demonstrate的用法v to show clearly by giving evidence；to exhibit 表达，显示，示威例：How did he demonstrate the truth of his theory? (跟宾语)Can you demonstrate that the earth moves around the sun?(跟宾语从句) 【拓展】词性转换n demonstration论证，表明，表现5．peak的用法n. the point at which a process o r an activity is the strongest, the most successful or the most fully developed 顶峰．最高点．高峰期例：We saw a victory by an athlete at the very peak of her career．Don’t go there in the peak season(高峰期+旺期), it’ll be hot and crowded．Traffic is really bad at peak hours.6．witness的用法v to be present and see sth(an event，an accident etc)take place目击例：China has witnessed great historic events.n.[C]a person who sees an event见证者例：He was a witness of the accident.7．touch的用法n. a little bit; a detail that is added to something and makes it took or sound stronger or better 少许例：a touch of fever／cold有点发烧／感冒v. to feel a part of one’s body．usually with one’s hand触摸例：Don’t touch the exhibits.v to be associated or connected with sth．与(某事)有联系或有关系例：I wouldn’t touch anything illegal.v．to make(sb／sb．’s feelings)sympathetic or sad 感动例：The story touched us all.【拓展】相关闻组keep in touch 和……保持联系get in touch with 和……取得联系lose touch／out of touch(with) 与……失去联系词性转换adj．touching令人同情的8．achieve的用法v. to succeed in fulfilling an aim or in making a dream come true 实现，达到，完成例：achieve success／one’s ambition／one’s goal【拓展】词性转换n. achievement完成，达成．成就9．giant的用法n. an imagined person of great size and strength，esp. one mentioned in ancient or children’s stories；a person or thing 0f great size or importance巨人，大力士,伟人例：Yao Ming is a giant of the basketball team.a giant pumpkin重要人物10．divide的用法v. to split something into parts；to go into parts 分裂【拓展】相关词组divide sth．into把……分成例：Divide the apple in half／into halves.11．every的用法every other+单数名词，意思是“每隔一……”例：every other day每隔一天every other tree每隔一棵树every+基数词+复数名词或every+序数词+单数名词，意思是“每隔……”(较英语数词少一个)例：every three days, every third day 每隔两天／每三天every two days=every other day每隔一天／每两天every few days 每隔几天12．add的用法v . to put something together with something else so as to increase the size, number, amount, etc 加，添·增加【拓展】相关词组add A to B把A加到B上add to增加，增添add up把……加起来add up to加起来总共词性转换n．addition 加adj. additional附加的，另外的13．schedule的用法n．timetable时刻表v．to arrange sth．for a certain time 为某事安排时间例：Jay Chou was scheduled t0 arrive at three o’clock th is afternoon.【拓展】相关词组be on schedule准时14．carry的用法v. to have or possess；to involve；to support the weight of sth．有，含有，使承担例：She knew that her opinion carried very little weight. (有)This pillar(梁) carries the whole roof．(承担)The newspaper carries some news．(含有)15．weight的用法n. degree of heaviness重，重量【拓展】相关词组gross／net weight毛重／净重be a weight on one’s mind 思想上的负担词性转换adj. weighty 重的，沉重的，繁重的16. amaze的用法vt．to fill sb with great surprise 0r wonder 使某人大为惊讶例：Your knowledge amazes me.【拓展】相关词组be amazed at／by为……感到惊讶例：We were amazed at／by the news that David had got married.be amazed to find／see／hear发现／看到／听到某事而感到惊讶词性转换(1)adj．amazing令人惊奇的(通常褒义)例：It was amazing to hear that David had got married.(2)n．[U]amazement17．turn的用法n. a road which leads away from the side of another road; a change in something that is happening or being done 转向，转弯，转折点例：we got as far as the cinema，and there we made a right turn.at the turn of the twenty—first century 在21世纪之初【拓展】相关词组at every turn 事事，处处，常常by turns轮流in turn依次．按顺序take a new turn有了新的转折turn down拒绝turn out生产．结果是……turn up露面18．host的用法n．a person who receives or entertains one or more other people as guests主人例：Our host greeted us at the door.the host country=the host nation东道国Who will be the host of tonight’s performance?谁是今晚节目的主持人?v. to act as a host or hostess作……的主持例：host a TV talk—show主持一场电视脱口秀19．dream的用法have a happy dream／dream a happy dream 作了一个美梦dream of,／about doing sth 梦想／希望得到／做某事，做梦想到例：I dreamed of／about you last night.dream that 做梦想到．常用于否定句中例：She dreamed that one day she would be famous.20．continuous的用法adj. going on without stopping or being interrupted不问断的，连续不停的例：a continuous flight【拓展】比较continual连续不断的，频繁的，表示时断时续的例：I hate their continual arguments.21．effort的用法n．努力，尝试例：It takes times and effort to learn English well.【拓展】相关词组spare no effort(s)to do 不遗余力去做某事make an effort 努力22．approve的用法v. to officially accept a plan，proposal，etc 批准，通过．赞成例：He doesn’t approve the policy.I quite approve of your proposal．【拓展】词性转换(1)n[U]approval批准，认可，赞同(2)v．disapprove不批准．不认可，不赞同23．the Olympic Games／the Olympics的用法奥林匹克奥运会作主语时,谓语常用复数。