山东省华侨中学高一英语寒假作业17 新人教版.doc

寒假作业17一.单项填空1yet，_，we are not completely powerless.ahowever we are weak bhowever weak are wechowever are we weak dhowever weak we are2however，the most important thing about my job is that i help_ ordinary people from one of the most powerful forces on earththe volcano.aprevent bprotect ckeep dstop3i was_ as a volcanologist working for the hawaiian volcano observatory twenty years ago.aappointed bclaimed cappealed dapplied4unfortunately，we cannot move their homes out of the way，and many houses have been covered with lava or_.aburned to deathbburning to the groundcburned to the grounddburning to death5_ quite a few earthquakes in hawaii already，i didnt take much notice.aexperience bhaving experiencedcexperienced dexperiencing6i was about to go back to sleep_ suddenly my bedroom became as_ as day.awhile；bright bbefore；brightestcas；brighter dwhen；bright7the day after this eruption i was_ to have a much closer look at it.aenough lucky to have bluckily enough havingclucky enough to have denough luckily having8it was not easy to walk in these suits，but we slowly_ to the edge of the crater and looked down into the red，boiling centre.amade our way bin the waycon the way dlost our way二.阅读理解animals and earthquakesscientists who try to predict earthquakes have got some new helpers recentlyanimals.scientists have begun to catch on to what farmers have known for thousands of years.animals often seem to know in advance that an earthquake is coming，and they show their fear by acting in strange ways.before a chinese quake in 1975 snakes awoke from their winter sleep early only to freeze to death in the cold air.cows broke their halters (缰绳) and tried to escape.chickens refused to enter their coops.all of this unusual behavior，as well as physical changes in earth，alerted chinese scientists to the coming quake.they moved people away from the dangerous area and saved thousands of lives.one task for scientists today is to learn exactly which types of animals behavior predicts quakes.its not an easy job.first of all，not every animal can react to the danger of an earthquake.just before a california quake in 1977，for example，an arabian horse became very nervous and tried to break out of his stall.the horse next to it，however，reminded perfectly calm.its also difficult at times to tell the difference between normal animals restless and “earthquake nerves”a zoo keeper once called earthquake researchers to say that his cougar (美洲狮) had been acting strangely.it turned out that the cat had an upset stomach!a second task for scientists is to find out exactly what kind of warnings the animals receive.they know that animals sense far more of the world than humans do.many animals can see，hear，and smell things that people do not even notice.some can detect tiny changes in air pressure，gravity，or the magnetism (磁力) of earth.this extra sense probably helps animals predict quakes.1what is the main idea of this passage?aanimals dont know when an earthquake is coming.banimals can predict earthquakes.cthe author doesnt know whether the animals can feel the coming of an earthquake or not.dhuman beings have to move the animals away before an earthquake is coming.2some animals could predict earthquakes because they can detect tiny changes_.ain the air pressurebin gravitycin the magnetism of the earthdall of the above3how do all the animals exactly know when an earthquake is coming?aby their extra senses.bby the changes in air pressure，gravity or the magnetism.cpeople dont know exactly.dthe passage doesnt mention it.4the authors purpose is mainly to_.aexpress an argumentbmake a serious proposalcpresent a discoverydexpress suspicions【答案解析】寒假作业17一.单项填空1.d本题考查以however引导的让步状语从句的语序知识，however形容词主谓。2b表示“保护不受/免于”应用protect.from.。prevent/keep/stop.from doing sth.意为“阻止做某事”。3abe appointed as.被任命为。4c因houses与burn是被动关系，故排除b、d两项。burn.to death烧死；burn to the ground全部焚毁。5b分析句子结构可知此处应用非谓语动词作状语。i与experience之间是主动关系，且非谓语动词所表示的动作发生在句子谓语动作之前，故用现在分词的完成式。6dbe about to do.when.刚要突然/这时；第二个空考查“as.as.”结构，中间用形容词或副词的原级。7cadj./adv.enoughto do意为“足够做”。8amake ones way to/towards向走去。二.阅读理解1.b从第二段的“animals often seem to know in advance that an earthquake is c