[ 考点] a man of principle 善良的好人
in principle 基本上
as a matte r of pr inciple (on principle ) 按照常礼
[ 例句] 1 ) I never gamble ，as a matte r of principle.
2 ) In principle I agr ee that mothers and babies should be together as much as possible ，but it’s not always so simple in practice.
sedate [ si..deit ] ad j.安静的，镇静的
[ 同义] calm，collected ，composed ，cool ，sober
[ 反义] hasty ，flippant ，undignified
[ 考点] sedate pace 稳步，稳速
[ 例句] Opponents of the gove rnment a re calling for a mor e sedate pace of economic reform.
sedat ive [..sed..tiv] n.镇静剂
silicon6 [..silik..n ] n.硅
[ 考点] (a) silicon chip 硅片
the Silicon Valley 硅谷
sponsor4 [..s p..ns..] v.赞助
n.赞助人，赞助商
[ 同义] v.back ，finance ，fund ，gua rantee ，promote ，pat ronize，subsidize n.backe r ，pat ron ，promoter ，gua rantor
[ 考点] sponsor sb.(for sth .) 赞助某人
be sponsor ed by 由.赞助
[ 例句] 1 ) Before you get a visa to live in Br itain ，you need to find someone who will officially sponsor you.
2 ) All the major theatr es now have sponsor s，especially for high cost productions.
st imulant* [..stimjul..nt ] n.①兴奋剂②刺激物
[ 考点] a stimulant to sth..的刺激物
[ 例句] 1) Tour ism has acted as a stimulant to the count ry ’s economy.
2) An Ame rican athlete has been disqualified (剥夺资格) from the championship for the use of banned stimulant.
subtract4 [ s..b..t r .. kt ] v.减去，扣除
[ 同义] debit ，deduct ，det ract ，diminish ，remove ，withdrawn
[ 反义] add
[ 考点] subtr act from 从.减去，扣除
[ 例句] 1 ) Four s ubtr acted from ten equals six.
2 ) You have to subt ract 25% tax from the sum you receive.
threshold6 [....r e....uld] n.①门槛②极限③入口，开端
[ 同义] brink ，drawn ，ent rance ，opening ，outset ，verge
[ 考点] be on the threshold of sth.处在.的开端above / below the threshold of consciousness 有意识作用(下意识) 的
[ 例句] 1 ) She stopped on the threshold ，looking to see who was in the room.
2 ) I have a low boredom thr eshold.我很容易厌烦。
at one’s best 处于最佳状态
[ 例句] The documenta ry was an example of investigative journalism at its best.
attribute .to 把某事归因于，认为是.结果
[ 例句] I wouldn’t dr eam of att ributing such a lack of judgment to you.
figure out 想出
[ 例句] Can you figur e out how to open this box?
beware of 当心，注意
[ 例句] Bewa re of falling asleep while sunbathing.
Part Two After Class Reading
Passage Ⅰ Surprising Facts About Sleep
词汇精解
backfire [..b .. kfai..] v.产生事与愿违的后果
[ 同义] fail ，flop ，miscarry ，r ecoil
[ 例句] Her plans to make him jealous backfired on her when he went out with her best friend.
banner4 [..b .. n..] n.旗帜
[ 考点] carry the banner of 强烈支持
unde r the banner of 在.旗号下
a banner headline (报纸中) 大写字体的显著标题
[ 例句] 1 ) They won the election under the banner of low-er taxes.
2 ) The demonst ra tor s walked along the st reet ，waving banne rs and shouting angrily.
battery4 [..b .. t..ri] n.①一群，一组，一连串②电池
[ 考点] a rechargeable/ solar bat tery 充电电池，太阳能电池
a bat tery of sth.一连串.
a bat tery operated hair dryer 带电池的吹风机
[ 例句] 1 ) This alarm clock takes two medium sized bat-teries.
2 ) A bat tery of expe rts failed to discove r the cause of the accident.
bulb4 [b..lb ] n.① (百合、洋葱、郁金香等植物之生于地面下的) 球茎②状似球茎之物③电灯泡
[ 考点] a light bulb 电灯
[ 例句] 1) Tulips ，onions ，and lilies all grow from bulbs.
2) Plant the bulbs in soil 15 centimetr es apar t and three to five centimetr es deep.
cheat4 [ t..i..t ] v.欺骗，作弊
n.骗子，骗局
[ 同义] deceive ，defr aud ，fool ，t rick ，mislead
[ 考点] cheat in/ at sth.在.中作弊
cheat s b.out of sth.欺骗；榨取利益等
[ 例句] 1) Anyone who caught cheating will be immedia tely disqualified from the exam.
2) Trouble broke out when one of the playe rs called a membe r the other team a chea t.
chronically * [..kr..nikli ] adv.慢性地，长期地
[ 同义] constantly
conference4 [..k..nf..r..ns ] n.会议，讨论会
[ 同义] congress ，discussion ，forum，conversation ，meeting ，debate ，seminar
[ 考点] a confer ence on sth.有关.的会议
be in conference 正在开会
[ 例句] 1 ) She spoke at a confer ence tha t I went to on AIDS.
2) She is in conference now.
crisis4 [..kraisis] n.[ pl .] crises①危机② (重病的) 转折点
[ 同义] emergency ，turning point ，disaster ，miss ，trouble
[ 考点] a c risis in sth..的危机
resolve/ solve the crisis 解决危机
a c risis over sth.因.而起的危机
face a crisis of sth.面临.的危机
[ 例句] 1 ) The re is a crisis in education.
2 ) He’s pas sed the crisis-the fever’s sta rted to go down.
darken* [..d....k..n] v.(使) 变黑(暗)
[ 同义] sadden ，deject ，blacken ，shadow
[ 反义] brighten ，lighten
[ 考点] Never darken these doors/ my door again！别再来了！
[ 例句] We cr ept slowly along the da rkened corridor.
epidemic6 [ epi..demik] n.流行病
[ 考点] a flu epidemic 流感
an unemployment epidemic 流行失业症
reach epidemic propor tions 影响许多人
[ 例句] 1) They’r e predicting an AIDS epidemic in the next ten years.
2) Pover ty in this count ry has r eached epidemic propor tions.
expendable* [ ik..spend..bl ] ad j.不需要的
[ 例句] 1) Expendable mater ials are often used for packa - ging goods.
2) The gene ral considered these t roops were expendable.
heighten6 [ hait..n] v.(使) 变高(大、强)
[ 同义] add to ，elevate ，raise ，incr ease ，st rengthen
[ 反义] dec rease，diminish
[ 考点] heighten a person’s anger 使某人更气愤
heighten an effect 增强效果
[ 例句] As the feeling of panic heightened ，people star ted to flee to towards the exits.
insti tute4 [..institju..t ] n.学院，研究所(院)
[ 例句] 1 ) The Mas sachuset ts Institute of Technology is a famous Institute for the Blind.
2 ) She studied in the Foreign Languages Institute.
invest4 [ in..vest ] v.①投入(时间等) ②投资
[ 同义] charge ，devote ，layout ，put in ，spend ，consecra te，empower
[ 考点] invest in sth.(or doing sth .) 投资于某事(物) ，投资做某事
[ 例句] 1) The institute will invest 5 million in making this project this success that it is.
2) He refused to invest in companies without a good social r epor t.
midafternoon [..mid......f t....nu..n] v.下午3 点左右
refresh4 [ ri..fre..] v.使恢复精神
[ 同义] brace ，chee r ，cool，enliven
[ 反义] exhaust ，tire
[ 考点] refresh oneself with a cup of tea/ a warm bath 喝杯茶/ 洗个热水澡提神
refresh one’s memory 唤起记忆
[ 例句] 1 ) It was such a hot night that I had a cold shower to r efresh myself.
2 ) I looked the word in the dictionary to r efr esh my memory of its exact meaning.
rotate4 [ r..u..teit ] v.轮流，交替
[ 同义] pivot ，revolve ，spell，spin ，turn
[ 考点] rotate crops 轮植农作物
[ 例句] 1 ) The wheel rotates around an axe.
2 ) The satellite slowly rotates as it ci rcles the ea r th.
sedentary [..sed..nt..ri ] ad j.坐者做的
[ 同义] desk bound ，inactive ，seated ，sitting ，still ，unmoving
[ 反义] active
[ 考点] lead a sedentary life 过着案板生活(其工作需要久坐的或劳心的)
sedentary occupa tions 劳心的工作
[ 例句] My doctor says I should sta rt playing spor t because my lifestyle is too sedenta ry.slice4 [ slais ] v.切，割n.薄片
[ 同义] cut ，piece，portion ，section ，shar e，slab ，chop ，divide
[ 考点] slice (up) a loaf 切面包
slice off (a thick steak ) 切下(厚厚的一片肉) any way you slice it/ no ma tter how you slice it 不管怎么想cucumber/ lemon slice 黄瓜/ 柠檬片
[ 例句] 1 ) He accidentally sliced the top off his finger while he was cutting vegetables.
2 ) He shouldn’t have hit he r ，any way you slice it.
sociology6 [ s..usi....l..d..i] n.社会学
southwestern6 [ sau....westn] ad j.西南的
spangle [..sp ......l ] v.用闪光的东西装饰
weekday4 [..wi..kdei] n.周日(除周末以外的日子) ，工作日
[ 考点] on weekdays 工作日中
[ 例句] 1 ) On weekdays I’m usually in bed by ten o’clock.