问题:二次函数y=2x2+mx-5在区间(-∞,-1)内是减函数,在区间(-1,+∞)内是增函数,则m的值是( )A.4 B.-4 C.2 D.-2
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问题:Montreal is larger than_______in Canada.A.any city B.any cities C.any other cities D.any other city
问题:It is widely accepted that English is the global language of modern times. About three decades ago,French was recognized as the language of diplomacy(外交),and German was considered the language of science and technology.English now dominates(主导)not only as the language of science but also diplomacy,computing,and tourism.Today,in terms of native speakers,Mandarin Chinese is the world′s largest language. Yet there are people who believe that China will become the most powerful country in the world.Some have?even fixed the date as early as the year 2020.At present,while English is more widely spoken than any other?language,there are more people who speak Chinese than English due to the large population in China alone.If China?does become a world power,there is no doubt that this language will spread worldwide. As the controversy over which language will become dominant in the world continues,there are many who feel?that the dominance of English is unique and irreversible(不可逆的).However,a separate study from David Graddol′s suggests that English′s dominance in the scientific area will continue.There is also an argument that the?English language would be changed greatly by 2020 for various reasons.With the possibility of China rising as a?world power,Mandarin could definitely challenge the dominance of English as a global language.What does controversy in the last paragraph probably mean?A.Plan. B.Argument. C.Conditoin. D.Goal.
问题:_______a microscope we can see different kinds of things that are unable to be seen by our naked eyes.A.In terms of B.In place of C.By means of D.By far
问题:Don′t sit there__________nothing.Come and help me.A.do B.to do C.doing D.and doing
问题:当北极圈上出现极夜时,此时(??)A.地球运行至轨道的远日点附近 B.北京的正午太阳高度最小 C.南极长城站出现极昼现象 D.太阳直射点在赤道上
问题:图10—11中正确描绘磁感线的图是()
问题: A.80° B.75° C.90° D.100°
问题:"It′s no use,Mum,"said Johnny."I′m just no good at dancing." "You′ve got to keep trying.Tonight will be?21,dear.Try a turn with that pretty Lisette."Johnny?22.Every Saturday night used to be the best of the week.He and his parents went to the?23?at the Club,where his hero,Alcide,played the accordion(手风琴)with the band.But lately everything had changed.Now that Johnny was older,he was?24?to dance with a girl!25?Johnny and his parents arrived at the Club,music had already started.Johnny got up his?26?to approach Lisette."May I have this dance?"Johnny asked."That′s all right,"said Lisette.Johnny struggled to keep up with Lisette′s?27?steps,but he was always one beat behind her.Then Johnny heard his friend Pierre say,"Look!Johnny has two left feet!"Laughter burst from the crowd.Johnny?28?and ran outside,determined never to go to another dance. The next Saturday,Alcide drove to Johnny′s house for some potatoes.He happened to hear Johnny playing the accordion.Alcide′s eyes?29."Bring that accordion and play some songs tonight,"Alcide said.Then he drove off,leaving Johnny staring open-mouthed?30him. At the Club,Johnny scanned the crowd for Lisette and?31?her.The band played for a long time before Alcide said,"Dear friends,I got a?32?for you tonight.Young Johnny is going to join us!"Trembling,Johnny stepped up on the platform,his eyes on the floor.He began to play,and the band joined in behind him.When the song ended,he heard cheers.Johnny kept playing until the dance was?33"You did a fine job tonight.Play with us again next Saturday night,"Alcide said."Yes,sir!"said Johnny.34?he went outside,Johnny saw Lisette and her friends near the door.Lisette stepped forward,smiling,"You played really good tonight!"she said. "Thank you,"Johnny blushed(脸红).As he walked on,Pierre?35?moved out of the way for him to pass. Johnny patted his accordion.Come to think of it,in his whole life,he had never once seen Aleide out on the dance floor.第23题答案是A.platform B.appointment C.meeting D.dance
问题:画出硫离子、镁离子、氯离子结构示意图.
问题:Mr.Smith was engaged__________writing a novel.A.in B.at C.with D.for
问题:
问题:__________A.through B.by C.on D.in
问题:19世纪,日本外务大臣曾说:在这笔赔款以前,日本财政部门全部收入只有八千万日元。所以,一想到现在有三亿五千万日元滚滚而来,无论政府或私人都顿觉无比的富裕。使日本获得该笔巨额赔款的条约是(??)A.《北京条约》 B.《天津条约》 C.《马关条约》 D.《南京条约》
问题:材料题 通读正面的短文,掌握其大意。然后,从每小题的四个选择项中选出可填入相应空白处的最佳选择。 A Shelter for the Homeless Last summer I was a volunteer(志愿者)at a shelter for the homeless,a place for homeless people to sleep at night.I wasn’t working that summer and was 21 only two classes in summer school,so I had some 22 time. Three nights a week,I 23 in the kitchen of the shelter along with four other volunteers.We planned and cooked for 45 people hot meals 24 vegetables,chicken,fish and fruit.The homeless people needed this good food because many of them usually didn’t eat well. I 25 this volunteer work,making 26 with the four volunteers in the kitchen.One was a very nice elderly housewife,one a movie actor,another a young teacher,and the other a college student,27 me. I talked to a lot of the homeless people at the shelter.Their life stories 28 me with sympathy(同情).Some of them had problems with alcohol(酒精)or drugs while others only had bad 29.One woman worked for almost 30 years for a small company,and then she lost her job.She looked for a 30 job,but couldn’t find one,for she was too 31.She could do nothing but sell her furniture—sofas,chairs,and tables 32 she could pay for her food.The woman luck on job hunting,but she 33 couldn’t find one.She had no money for her 34 and had to sleep in her car.Then she had to sell her car.Alone,afraid and 35,,she finally came to the shelter.()A.old B.poor C.sick D.dull
问题:仔细体味《登金陵凤凰台》一诗,回答6-7题。 登金陵凤凰台 李白 凤凰台上凤凰游,凤去台空江自流。 吴宫花草埋幽径,晋代衣冠成古丘。 三山半落青天外,二水中分白鹭洲。 总为浮云能蔽日,长安不见使人愁。试分析第三联(即颈联)的景物描写和前两联所抒发的感慨的内在联系。
问题:—Would you take this along to my home for me? —__________A.With pleasure B.That's right C.Never mind D.Don't mention it
问题:The road will be blocked if there_______another snow.A.is B.will be C.to be D.will have
问题:"...She was married to an officer in India,long ago India;and she had a life of physical adventure(冒险)as exciting as her poetry.Her husband could cross rivers using crocodiles(鳄鱼)as stepping stones.He died when she was only 39.Unwilling to exist without him,she took her life,leaving a son in England." I stared at the paper,21?reading,couldn′t help thinking. Crocodiles are lazy animals as a rule,but they can move like lightening when they want to.And they don′t mind hurrying?22?they′re hungry.There used to be lots in Indian rivers,living on fish mostly;but what′s a little fish for a fifteen-foot crocodile?They ate people,fisherman or anyone else delicious enough to get too near;women doing the?23,or children playing at the water′s 24.A hungry crocodile′s mouth?25?over a meal with a sound like a gunshot.A big fellow can?26?in a man in two bites(咬)。 That woman′s husband crossed rivers?27?from one crocodile′s back to the next.I believe it.It had to be done quickly before the creature could see what was happening.It wasn′t28?a brave,active man;and no doubt he improved with practice.He could never look?29while crossing. The wife used to watch him--I felt sure of that.She lived?30?the adventure,the?31?excitement of it all.Their real life was with tigers,snakes...It′s no wonder she wrote?32poetry. Then he died.I imagined how she felt.Was there another man?33?him in India,in the world?She was still young,hardly a sitting-room widow(寡妇)."I must?34,too."she said to herself.So she did what she felt she had to do.A?35?probably,to her head. But her young son,their son?Was her love for him nothing compared to her husband?Well,what do you think?第24题答案是A.border B.end C.side D.edge
问题:第3题读音不同的是A.gather B.gentle C.goat D.gold