1、(1)harmful adj.根据语境感悟其用法Fruit juices can be harmful to childrens teeth.果汁可能对孩子们的牙齿有害。链接harm n.伤害；损害 vt.伤害；损害harmless adj.无害的；无恶意的短语do sb.harm do harm to sb.对某人有害be harmful to 对有害 harmful adj.句型It does no harm to do sth./There is no harm(in)doing sth.不妨做某事It wouldnt do sb.any harm to do sth.做某事对某人并无害
2、处活用用harm的适当形式填空(1)Your smoking may be _(有害)to the healthof your baby.(2)The storm has done great _(有害)to the crops.(3)The dog seems fierce,but actually hes _.harmless harmful adj.harmfulharm根据语境感悟其用法They have been prevented by the traffic jam fromgoing there on time.他们被交通拥堵所阻碍，以致没有按时到达那里。prevent v.阻
3、碍，阻止链接“阻止某人做某事”的几种表达式：ban sb.from doing sth.stop sb.(from)doing sth.keep sb.from doing sth.prevent v.阻碍，阻止活用 单项填空(1)We must take firm and efficient measures toprevent pollution _our life even better.A.to makeB.makingC.makeD.against making prevent v.阻碍，阻止A解析 考查非谓语动词的使用。本题的语义是：为了使我们的生活更加美好，我们必须采取果断而卓有
4、成效的措施阻止污染。根据语境非谓语动词在本句是目的状语，所以答案是A。本题极容易造成学生们的思维定势而误选B。活用 单项填空 prevent v.阻碍，阻止(2)Well spare no effort to prevent the river _.A.from pollutingB.pollutingC.being pollutedD.polluted解析 考查非谓语动词的使用。本题的语义是：我们将不遗余力地阻止河流污染。根据语境河流与污染形成了被动关系，所以答案是C。prevent v.阻碍，阻止活用 单项填空Cviolent adj.猛烈的，凶暴的根据语境感悟其用法The violent
5、 windstorms are frequently accompaniedby rain,snow,or hail.强烈的风暴经常伴随雨、雪或冰雹。链接violence n.暴力，暴行violently adv.猛烈地；剧烈地短语a violent wind 暴风a violent language激烈的语言a violent attack猛烈的攻击violent behaviour暴力行为violent adj.猛烈的，凶暴的活用根据汉语意思，完成下列句子(1)人们非常关注青少年暴力行为。There is a great concern about _amongadolescents.(2
6、)狂风将船猛地推向一块巨大的礁石。_dashed the ship against a huge rock.violent adj.猛烈的，凶暴的答案(1)the violent behaviour(2)The violent wind spread v.(spread,spread)展开，传播根据语境感悟其用法He called for more measures to be implemented toprevent the spread of the disease.他呼吁采取更多措施以阻止疾病的传播。短语spread out a map 摊开地图spread news传播消息 spre
7、ad v.(spread,spread)展开，传播活用根据汉语意思，完成下列句子(1)这座城市向北方延伸了10英里。The city _ ten miles to the north.(2)苍蝇传播疾病。Flies _ diseases.(3)坏消息通常传得快。Bad news usually _.spreads forspreadspreads quicklypuzzle n.&v.根据语境猜词义(1)Its a puzzle to me why he hasnt come for mybirthday party.(2)Can you help me out with the math p
8、uzzle?(3)Her word puzzled him.(4)I was puzzled how to handle the situation.答案(1)B (2)C (3)A (4)D根据语义找匹配A.使迷惑不解 B.谜 C.难题 D.使为难puzzle n.&v.链接puzzling adj.令人困惑的；使人感到困惑的puzzled adj.困惑的；感到困惑的puzzlement n.困惑，迷惑puzzle n.&v.短语be in a puzzle about对大惑不解work out a puzzle猜谜；解决难题puzzle over对冥思苦想puzzle out(苦苦思索而)
9、搞清楚puzzle ones brain about/over对而大伤脑筋puzzle n.&v.活用用puzzle的正确形式填空The(1)_ boy(2)_ his mother,so there was a(3)_ expression on her face.Much to(4)_ of his mother,he left homewithout saying a word.puzzle n.&v.puzzlement puzzlingpuzzledpuzzled exist vi.根据语境猜词义(1)Problems also exist in agriculture.(2)Foo
10、d will not get cheaper under existingconditions.(3)She exists on tea and bread.根据语义找匹配A.生存；生活 B.现存的；现在的 adj.C.存在；有CAB exist vi.短语exist in 存在于中exist on靠为生exist by靠生存existence n.存在；生存in existence存在come into existence开始存在；成立bring into existence使产生 exist vi.温馨提示exist 是不及物动词，不能用于被动，也不能用于进行时态。exist 还可用于th
11、ere be 句型中表示“存在有”。类似的还有seem,appear,stand,lie,run,remain,etc.exist vi.There appears to be lots of misunderstandingbetween us.我们之间有很多误会。There once lived two gods who were in chargeof Earth and Heaven.曾经有两个神，他们分别掌管地和天。exist vi.活用单项填空There,in the small temple,used to _ a big bell.But now it has gone.A.h
12、appenB.comeC.existD.stand解析在那个小寺庙里，曾经“有”一个大钟，但现在已经不见了。C gentle adj.根据语境猜词义(1)Mothers are always gentle with their children.(2)Its very comfortable to let the gentle wind blowon your face.根据语义找匹配A.轻轻的，轻柔的 B.温柔的，文雅的AB链接gentle-looking adj.看起来彬彬有礼的、看起来很绅士的gentleman n.绅士，先生gently adv.温柔地，轻柔地，轻轻地gentlenes
13、s n.温柔，和善短语be gentle with sb.对某人体贴入微gentle in voice/action声音温柔，举止文雅 gentle adj.活用单项填空(1)Strolling at the lake,the _ wind is brushingyour face.How romantic!A.mildB.softC.gentleD.light解析 考查形容词词义辨析。题意是：信步于湖畔，清风轻拂着你的脸。多么富有诗情画意啊！通过语境体现出是物体运动轻缓的语义，所以答案是C。gentle adj.Cpull n.&v.根据语境猜词义(1)To escape the pull
14、of the earth,a rocket must reacha speed of 28,440 km/h.(2)He pulled the door open and rushed out.根据语义找匹配A.拉 B.吸引力BA短语pull down拆除；(把身体)拖垮pull off(匆忙地)脱下(衣物);(成功地)完成pull on(匆忙地)穿上pull out拔出；驶出；摆脱(困难)pull in进站；靠岸pull away驶离；开走pull n.&v.解析 考查动词短语辨析。语义是：班车驶进车站，乘客一个个地下来了。drive away开走；pushin 是不存在的短语；rush i
15、n 冲进，不合题意，所以答案是C。活用单项填空(1)The bus _ the bus station and the passengersgot off one after another.A.drove awayB.pushed inC.pulled inD.rushed inpull n.&v.C解析 考查动词短语辨析。语义是：勇士匆忙脱下衣服跳进河里救那落水儿童。pull on匆忙穿上；put off 推迟；take off脱下，在语境中不是最佳答案；pull off匆忙脱下，所以答案是D。(2)The brave man _ his clothes and jumped intothe river to save the drowning boy.A.pulled onB.put offC.took offD.pulled offpull n.&v.活用单项填空D