第一篇:六年級英語下冊測試題
六年級英語下冊測試題
1一、選擇題
1.—Have you heard the latest news?—No,What _________?
A.is it
B.is there
C.are they
D.are those
2.—The last one ________ pays the meal.—Agreed!
A.arrived
B.arrives
C.to arrive
D.arriving
3.We _________ so as not to wake the roommates.A.whispered
B.moaned
C.grunted
D.muttered
4.Some pre-school children go to a day care center,_________ they learn simple games and songs.A.then
B.there
C.while
D.where
5._________ nothing more to discuss,the CEO got to his feet,said goodbye and left the meeting room.A.There was
B.Being
C.There being
D.As there being
6.I know a little bit about Italy as my wife and I _________ there several years ago.A.are going
B.had been
C.went
D.have been
7.“Why didn’t Tom come to the party last night?”“He _________ not have wanted to see me.”
A.should
B.would
C.could
D.might
8.Although he is only 5 years old,he has _________ aimagination.A.furtive
B.fertile
C.frank
D.furious
9.The manager suggested an earlier date _________ the meeting.A.on
B.for
C.about
D.with
10.Now many people buy _________ Christmas trees instead of real ones.A.false
B.fake
C.sham
D.artificial
11.Could you give me a hint without _________ the answer?
A.giving off
B.giving away
C.giving up
D.giving in
12.The flowers were so lovely that they _________ in no time.A.sold
B.had been sold
C.were sold
D.would sell
13.After a number of disagreements with the committee,the chairman was determined to _________.A.retire
B.withdraw
C.retreat
D.resign
14.We all can’t _________ why she married a man like this.A.reason out
B.figure out
C.make believe
D.take in
15.“Goodbye,then,” she said,without even _________ from her book.A.looking down
B.looking up
C.looking away
D.looking on
16.Between the two generations,it is often not _________ their age,their education that causes misunderstanding.A.like
B.as
C.or
D.but
17.—It’s a long time since I saw my sister.—_________ her this weekend?
A.Why not visit
B.why not to visit
C.Why not visiting
D.Why don’t visit
18.—Can you read the sign,sir? No smoking allowed in the lift!—_________.A.Never mind
B.Don’t mention it
C.Sure,I don’t smoke
D.Pardon me
19.Mary’s close _________ to her sister made people mistake them for one another.A.accuracy
B.membership
C.probability
D.resemblance
20._________ to the question of refreshments,I should think lemonade and sandwiches will be enough.A.Prior
B.As
C.Due
D.According
二、閱讀理解
One of my close friends, Bob, has a very large police dog named Jack.Every Sunday afternoon, Bob and Jack have a walk in the park nearby.Jack likes these walks very much.One Sunday afternoon, I paid a visit to my friend.I stayed there for a long time and my friend and I had much more talk with each other than ever before.Soon it was time for them to take a walk in the park.We forgot that.Jack became worried about it.He walked around the room several times and then sat down in front of me and looked at me.But I still paid no attention(注意)to him.I went on talking with my friend.At last, Jack could not wait any longer.He went out of the room and came back a few minutes later.He sat down in front of me again.But this time, he held my hat in his mouth.Suddenly, I understood what Jack meant and so did my friend.1.How many people are there in this story?______.A.One
B.Two
C.Three
D.Four
2.Jack______.B.enjoys long walks in the park every Sunday afternoon
B.enjoys long walks in the park every Sunday afternoon
C.has many close friends
D.enjoys talks in the room
3.Jack was worried because______.A.he wanted to eat something
B.it was Sunday afternoon again
C.he was not feeling well
D.he wanted his master(主人)to take him for a walk
4.Jack took my hat in his mouth to show that______.A.I should leave the house at once
B.he liked my hat very much
C.he was hungry and he tried to eat it
D.he wanted to have a rest
5.Which of the following is true?______.A.When Jack and I were talking, my friend didn't pay any attention to us
B.When I was talking to my friend, Jack didn't pay any attention to us
C.When my friend and I were talking, we didn't pay any attention to Jack
D.When my friend was talking to Jack, I paid attention to them
六年級英語下冊測試題
2一、選不同類單詞
1.A.armB.eyeC.ball
2.A.bananaB.headC.apple
3.A.shipB.redC.yellow
4.A.rainyB.snowyC.sun
5.A.swimB.bigC.small
二、單選
1._________ come to Yang Ling’s birthday party?
A.Would like to
B.Would you like to
C.Would you like
D.Would you to
2.---Where ______ you just now?---I ________ in the playground.A.was, were
B.was, was
C.were, was
D.were, were
3.Ben and I _______ some flowers last week.A.plant
B.planted
C.planting
D.plants
4.– What ______ he do? – He _______ pears on the farm.A.does, pick
B.did, picks
C.does, picked
D.did, picked
5.This knife is yours, Ann._______, please.A.Put on it
B.Put it on
C.Put it away
D.Put it away
6.I want to ______.It is fun!
A.go camping
B.going camping
C.go to camping
D.going to camping
7.Can you say the names _______ the things?
A.for
B.to
C.with
D.of
8.All my ________ to my birthday party last night.A.friends came
B.friend came
C.friends come
D.friend come
9._______ your new sweater _________ me, please.A.Show, to
B.Give, for
C.Have, for
D.Shows, to
10.The Walkman is in ________ Su Hai’s pocket.A.the
B./
C.a
D.that
11.---Here’s a card for you.Happy birthday!---___________.A.Thanks
B.No, thank you
C.Yes, please
D.Ok
12.It’s very hot.Jim is ______ his coat.A.putting on
B.taking off
C.taking down
D.take off
13.________ make noise;They’re _________ music.A.Don’t;listening
B.Not;listening
C.Don’t
14.---What day is it today?---____________.A.It’s February 10
B.It’s a Wednesday
C.It’s fine
D.Friday
15.“Keep off the grass” means __________.A.we shouldn’t make any noise on the grass
B.we shouldn’t walk on the grass
C.we shouldn’t eat or drink on the grass
D.we shouldn’t smoke on the grass
三、完形填空
Dear Susan,How are you? It’s very nice of you to write _1_ me._ 2_ your letter I know a lot _3 _ you and your school now.I will tell you _4 _ about me and my school.I am eleven _ 5_ old.I’m in _6_ at Jinling primary School.My mother is a _ 7 _.She teaches Maths.My father is an _8 _.He’s good at his work.There _ 9 _ 1 500 students and 100 teachers in our school.Our classrooms are big and bright.Please come and have a look _10_ our school if you have time.Yours,Wang Ying
1.A.forB.toC.fromD.in
2.A.ForB.ToC.FromD.About
3.A.inB.aboutC.withD.at
4.A.anythingB.somethingC.sometimesD.someone
5.A.yearB./C.yearsD.age
6.A.Grade Five,Class ThreeB.Grade five,Class threeC.Class three,Grade FiveD.Class Three,Grade Five
7.A.studentB.teacherC.doctorD.worker
8.A.farmerB.teacherC.doctorD.engineer
9.A.amB.isC.areD.be
10.A.inB.aboutC.atD.on
四、閱讀理解
David’s birthday was on a snowy day in December.He got lots of presents from his family and friends.His father and mother gave him a red box with a storybook in it.His mother said, “There are a lot of funny stories in it, it’s good for you.” Mike, David’s best friend, gave him a large box.A toy car is in it.David’s sister gave him a round box.“It is a birthday cake,” he thought.But it was a basketball.David likes playing basketball.David’s brother gave him a big yellow box.David opened it and there was another box in it.The box was green.He opened the small box and saw the third box.This one was blue.There was a short letter in it.“Go to your study.You can see three boxes there, a black one, a grey one and a white one.Your birthday present is in one of them.” David ran to his study and found them on the desk.The black one is bigger than the grey one, and the white one is the smallest.He opened the grey box, but found nothing in it.Then he opened the biggest one.He was very glad to see a model plane in it.1.David’s parents put their present in _________ for his birthday.A.a yellow box
B.a lot of boxes
C.a black box
D.a red box
2.Who is Mike?
A.A friend of David’s father’s
B.One of David’s best friends.C.David’s brother.D.David’s sister.3.What colour was the biggest box?
A.White
B.Black
C.Grey
D.Blue
4.How many boxes did David’s brother give him?
A.Four
B.Five
C.Six
D.Seven
5.What was in the biggest box?
A.A book
B.A letter
C.A model plane
D.A small box.
第二篇:六年級英語測試題
黃安黃安鎮中心小學六年級下冊第一、二單元綜合復習題
班級姓名
一、根據漢語示寫出下列英語單詞及其比較級。高(,);矮(,);年輕(,)年老(,);強壯(,);瘦小(,); 大(,); 小(,);長(,); 重(,);有趣,滑稽(,)
二、英漢互譯。
感冒(); 發燒(); 受傷,疼痛(); 頭痛();牙疼(); 高興();生氣();傷心();疲勞()無聊();腿斷了()肚子痛()興奮();流感();看醫生(); 在……和……之間()
tail();only()little monkey()I think…()sperm whale()killer whale();each up();deep cold water()
good swimmer();earache()Don’t worry!();take some medicine();drink hot drinks();
stay in bed();a few days();math test();football match();Class 1 Grade 6();another()length()weight()skill()shark()
三、寫出下列單位的英文縮寫。
厘米()毫米()米()千米()克()千克()噸()英尺()
四、根據要求完成題目。
foot(復數)tooth(復數)tomato(復數)potato(復數)sheep(復數)deer(復數)fly(單三形式)
big(反義詞)long(反義詞)old(反義詞)by(同單詞)high(比較級)
四、將下列句子補充完整。
1、I am 178 tall,you’re 160.so I amthan you.2、How are you? I am 50 kg.My sister is 40 kg, so I am than her.3、are you? I am 12 years old.I amthan my father.4、are your legs? They’re 65 cm long.5、are your feet? I wear size 27.6、This is my book.That is _______.(用一個詞填空)
7、I feel sick.8、What’she?Hea fever.8、Your pencil is 10cm long,my pencil is 12cm long.Sois than.(每個橫線上只能填一個詞)
9、A sperm whale isthan a killer whale in its lenth.10、I failed the math test,so I feel.I won the game ,so I feel.11、There is a football matchclass 1 class 3.五、將下列句子翻譯成英語。
1、你多高?我148厘米高。我比你矮10厘米。
2、你多重? 我48千克重。你比我重5千克。
3、你多大年齡?我12歲,我比你更年輕。
4、你的鉛筆有多長。它8厘米長。
5、你的腳有多大?我穿16號。
7、大象比猴子更大更重和更高。
9、你感覺怎么樣?我感覺不舒服(生病了)。
10、你怎么了?(有什么麻煩)我鼻子疼。
11、你好嗎,邁克?你看上去是如此的無聊。
六、找出列句子中錯誤的部分圈起來,并改正。
1、I am 180 m taller.2、You’ re strong than me.3、My eyes are bigger than you.4、What’s the matter and you?
5、How do Amy feel? She feel happy.6、My nose hurt.七、按要求完成句子。
1、Mike is 12 years old.Chenjie is 15 years old.(將兩句話用than連成一句話。)
2、I am 130 cm tall.You are 158 cm tall.(同上題)
3、將劃線部分用一個詞替換)
4、同3題)
5、My arms are longe than.(只能填一個詞)
八、連詞成句,并寫出漢語意思。
1、than I heavier am Chenjie.2、failed test Chinese I the.3、wrong what with is you ?
4、weather the like what is in Hanzhong?
5、little only monkey is the cm 40 tall.九、回答問題。
1、How do you feel if you have the flu?
2、What do you do if you have the flu?
十、小作文
題目:My Famliy(我的家人)
要求:用英語介紹家人的姓名,年齡,生日,愛好,工作及上班方式等。
第三篇:小學六年級英語下冊第二單元測試題
小學六年級英語下冊第二單元測試題
一.選出不同類的詞。()1.A.sad B.angryC.happyD.trip()2.A.heavy B.longC.taller D.strong A.doB.doesC.isD.are()2.What’s the matter ____ you, Amy? A.forB.onC.with D.in()3.My nose _____.()3.A.meter B.foot()4.A.finger B.nose()5.A.funny B.quiet
二、按要求變化下列單詞。
1.feet(單數)________________3.sad(反義詞)______________5.bigger(原級)______________7.young(比較級)_________9.strong(比較級)_________三.連線。A組1.Nice to meet you.2.How do you feel?3.Where is the hospital?4.What’s the matter?5.I have a flu.6.How long is your pencil?7.What day is it today?8.How tall are you?9.How heavy are you?10.How big are you feet?
六、單項選擇
()1.How ___ he feeling?C.ton D.cm C.strong D.leg C.English D.young2.know(同音詞)______________4.fat(比較級)______________6.centimeter(縮寫)___________8.kilogram(縮寫)____________10.funny(比較級)________B組
A.I’m sorry to hear that.B.I have a high fever.C.Nice to meet you too.D.I’m very happy.E.It’s next to the cinema.F.I wear size 16.G..I am 35kg.H.It’s Tuesday.I.It’s 20cm.J.I am 160cm tall.A.hurtB.hurtsC.is hurtD.are hurt()4.Tom _____ a toothache.A.isB.areC.haveD.has()5.Tom is laughing ___ the TV play.A.atB.onC.forD.in()6.He is going ___ a trip.A.toB.onC.atD.in()7.you ___ happy today.A.lookB.looksC.lookingD.look at()8.I am so _____.A.exciteB.very excitedC.excitedD.is excited
七、連詞成句
1.soreisthroatmy(.)
__________________________________________ 2.AmydoesfeelHow(?)
__________________________________________ 3.todayyoulooksosad(.)
__________________________________________ 4.toothacheIahave(.)
__________________________________________ 5.failedImathmytest
__________________________________________
第四篇:六年級科學下冊測試題
A卷
一、填空。
1、放大鏡鏡片的特點是(透明)(中間厚、邊緣薄)。
2、一個放大鏡的放大倍數是(有限的)。放大鏡的放大倍數和(鏡片的大小)沒有關系,和(鏡片的凸度)有關,凸度越大,所成的像就(越大),看到的范圍就(越小)。
3、蟋蟀的“耳朵”在(足的內側)。蚜蟲的天敵是(草蛉)。
4、捕食性昆蟲對(移動物體)反應能力更加迅速。
5、(食鹽)(白糖)(堿面)(味精)的顆粒都是有(規則幾何外形)的固體,人們把這樣的固體物質叫晶體。
6、自然界的大部分物質都是(晶體)或(由晶體)組成的。如:花崗巖由(長石)(云母)(石英)等礦物晶體組成。
7、一個凸透鏡的放大倍數是(有限的),把兩個凸透鏡組合起來,可使物體的圖像(放得更大)。
8、生物學家(列文虎克)制成了世界上最早的可以放大近(300)倍的顯微鏡。
9、為了看到更小的物體,人們又研制出(電子顯微鏡)和(掃描隧道顯微鏡)電子顯微鏡可把物體放大到(200萬倍)。
10、1663年(英)國科學家(羅伯特.胡克)發現(細胞).11、(顯微鏡)的發明使人們能夠觀察到非常小的物體及物體的(精細結構)。
12、生物體都是由(細胞)組成的。
13、(細胞學說)的建立被譽為19世紀自然科學的三大發現之一。
14、細胞是生物體最基本的(結構)單位,也是生物體最基本的(功能)單位。
15、魚缸里的水變綠是因為(微生物繁殖)的結果。
16、微生物是(生物)具有同(其他生物一樣)的共同特征。
17、放大鏡)和(顯微鏡)的發明,讓我們看到了(微生物、細胞)。
18、(克隆羊)是人類研究微小世界的最新成果。
19、晶體有(食鹽)(白糖)(堿面)(味精)(黃銅礦)(雪花)(水晶)(維生素C)(長石)(云母)(石英)(金剛石)。非晶體有(玻璃)(松香)(琥珀)(珍珠)。
二、判斷。
1、透明的玻璃都有放大物體圖像的功能。(×)
2、圓柱形和球形的透明容器裝上水也有放大鏡的功能。(√)
3、水滴不能放大物體,只能透過它看到物體。(×)
4、近視鏡前面凸起,所以說它屬于放大鏡一類。(×)
5、某些寶石可以放大物體的影像。(√)
6、觸角的形狀和著生位置是鑒別昆蟲種類的重要特征。(√)
7、昆蟲的視力比人的視力好。(×)
8、顯微鏡的發明把人類帶進了一個宏觀世界。(×)
9、SARS病毒在顯微鏡下就能看清的。(×)
10、放切片時,有無氣泡沒有關系。(×)
11、顯微鏡比放大鏡看到的細節更多,范圍也較大。(×)
12、一切細胞來自于細胞。(√)
三、簡答
1、人們把放大鏡叫做凸透鏡,為什么?放大鏡的鏡片和放大物體的器具具有什么共同特點?
答案:放大鏡是透明的,并且中間是凸起的,所以叫凸透鏡。
它們都具有透明、中間厚邊緣薄的特點,都具有放大功能。
2、露珠(水滴)有放大作用嗎?為什么?它與放大鏡有什么共同特點?
答案:平時我們看到露珠有放大作用。露珠與放大鏡共同點是中間厚邊緣薄,都是透明的,都能把物體放大。
3、怎樣制作簡單的顯微鏡?
答案:a、用兩個放大倍數不同的凸透鏡。b、上下移動調整兩個凸透鏡之間的距離直到物體最清楚的圖像。C、用卡紙筒和膠帶紙把兩個凸透鏡固定下來。D、用手電筒或鏡子增加亮度。
4、細胞有什么作用?
答案:生物是由細胞構成的,它是生物最基本的功能單位。生物的呼吸、消化、排泄、生長、發育、繁殖、遺傳等生命活動都是通過細胞進行。
5、舉例說明人類探索微小世界的成果?
答案:(1)、利用細菌制造許多藥物,以抵抗和制服各種疾病的危害。
(2)、利用微生物改善我們的生活質量。
(3)、用顯微鏡技術進行品種改良。
(4)、利用微生物改善和提高土壤肥力。
(5)、利用微生物進行污水、垃圾處理。
6、微生物有什么作用?
答案:(1)、人們利用微生物改善生活質量。
(2)、利用微生物改良和凈化土壤。
(3)、利用微生物處理污水和垃圾。
(4)、利用微生物征服疾病或消毒。
B卷
一、填空。
1、放大鏡能把物體的圖像(放大),顯現人的肉眼看不清的(細微之處),使我們獲得更多的信息。
2、昆蟲在自然界中(種類繁多),分布很廣,它們有著和其他動物不同(身體構造)和(本領)。
3、蒼蠅落在豎直光滑的玻璃上,不但不滑落,而且還能在上面爬行,這和它(腳的構造)有關。
4、昆蟲的觸角就是它們的(鼻子),它能分辨各種氣味。
5、各種物質的晶體具有(基本一致)的形狀,所以(晶體)也是鑒別礦物的依據。
6、許多巖石是由(礦物晶體)集合而成。
7、晶體一般都是(固體)形態。
8、在顯微鏡下觀察物體有一定的要求,物體必須制成(玻片標本)才能在顯微鏡下觀察到它的精細結構。
9、生物細胞的形態是(多種多樣)的,不同生物的細胞是(不同)的,生物不同器官的細胞也是(不同的)。
10、如果微生物運動迅速,不便于觀察,我們可以先在載玻片上放少量的(脫脂棉纖維),再在上面滴一滴(池塘水),蓋上(蓋玻片)。也可以用(吸水紙)吸走蓋玻片邊緣多余的水分,控制微生物的運動。
11、在載玻片上放上(脫脂棉纖維)或用(吸水紙)吸走蓋玻片邊緣多余的水分都可以控制微生物運動。
12、自然界的(雨水)(河水)(井水)中都有微生物存在。
13、在水中生活著許許多多的微生物,常見的有(草覆蟲)(變形蟲)(喇叭蟲)(眼蟲)(團藻)(細菌)等,它們都是(單)細胞生物,動物的卵,比如雞蛋也是單細胞。
14、有些微生物能為我們提供(食物)或幫助我們(生產食物)。
15、(巴斯德)是第一個把微生物和疾病聯系起來的人。
16、(弗萊明)發明了青霉素,從而使千萬人免受肺炎等疾病的侵染致死。
17、(袁隆平)發明了雜交水稻。
18、地球上至少存在著(250萬)種生物。
19、(白細胞)能與病毒細菌作戰,保護我們的健康。
20一個單獨的洋蔥細胞,其中的黑點是(細胞核)。
21、DNA鑒定可以用(掃描隧道顯微鏡)。
22、我們制作晶體的方法有(減少水分法)和(降低溫度法).23、印刷物或電視機的圖像都是由(紅、藍、綠彩色點)組成。
24、生物是由(細胞)構成的,它是生物最基本的(功能)單位,生物的(呼吸)(消化)(排泄)(生長)(發育)(繁殖)(遺傳)等生命活動都是通過細胞進行的。
25、人類觀察工具的發展史:(肉眼)(放大鏡)(光學顯微鏡)(電子顯微鏡)
26、SARS病毒和大腸桿菌是用(電子顯微鏡)觀察。
二、判斷。
1、放大鏡能把物體放大許多倍。()
2、昆蟲的眼睛分單眼和復眼,復眼分別長在頭上方的兩側。(√)
3、每只昆蟲都有一對翅膀,都能在空中飛行。(×)
4、食鹽晶體放入鹽水中,晶體不會發生變化。(×)
5、晶體也是鑒別礦物的依據。(√)
6、自然界中的晶體都是從溶液中誕生的。(×)
7、我們把物體放在顯微鏡下,就能觀察到其精細結構。(×)
8、用放大鏡可以直接觀察到洋蔥的細胞。(×)
9、植物葉子邊有氣孔,是起呼吸作用的。(√)
10、列文虎克第一個指出了微生物在人類日常生活中所起到的作用,指出它們和人類健康的關系。(×)
三、簡答題。
1、放大鏡為什么能放大物體?
答案:放大鏡也叫凸透鏡,它的中間厚,邊緣薄,光線從空氣進入凸透鏡時會產生折射彎曲。而人認為物體反射的光是直線傳播的。所以,感覺物體放大了。
2、怎樣正確使用顯微鏡?
答案:概括的說:安裝——對光——上片——調焦——觀察。
3、怎樣控制微生物運動?
答案:在載玻片上放少量的脫脂棉纖維。或用吸水紙在蓋玻片邊緣多余的水分,都能控制微生物運動。
第五篇:六年級下冊比例測試題
一.填空1、0.6=3:()=()÷15=()成=()%
2、1: 0.75的比值是(),把它化為最簡的整數比是()
3、比例4:9=20:45寫成分數形式是(),根據比例的基本性質寫成乘法形式是()
4、18的約數有(),選出其中四個數組成一個比例是()
5、在比例尺1:2000000的地圖上,圖上1厘米表示實際距離()千米。
6、在一個比例中,兩個內項互為倒數,一個外項是,另一個外項是()
7.甲數除以乙數的商是4,甲數與乙數的最簡整數比是()
8、我國<<國旗法>>規定,國旗的長和寬的比是3:2,學校的國旗寬是128厘米,長應該是()厘米。
9、三角形底一定,它的高和面積成()比例。
10、用0.2、6、30、1這四個數組成兩個比例式是()和()
11、某廠男職工人數是女職工的,女職工與男職工的人數比是()
12、兩個正方體的棱長比是3:4,它們的體積比是()
13、如果3a=2b,那么a:b=():()
14、從A地到B地,甲用12分鐘,乙用8分鐘,甲乙的速度比是()
15、小圓的半徑是2厘米,大圓的半徑是3厘米,小圓和大圓的周長比是(),面積比是()
16、甲乙兩數之比是3:4,它們的和是1.4,則甲數是(),乙數是()
17、一個比8:15,如果后項增加60,要使比值不變,比的前項應該增加()
18、在比例尺是的學校平面圖上,量得教室的長8厘米,寬6厘米,教室實際面積是()
19、男生人數比女生人數少20%,男生人數與女生人數的比是():()
20、甲數的等于乙數的,甲數與乙數的比是()
二、判斷
1、圓柱的底面積一定,它的高與體積成正比例。()
2、圓周率是圓的直徑與周長的比值。()
3、把16:2化作最簡的整數比是8。()
4、如果Y=5X,則x與y成正比例。()
5、一個非0的自然數與它的倒數成反比。()
三、選擇題
1、能與1.6:1.2組成比例的是()
A、1.2:1.6 B、:0.3 C、3:4
2、一克的鹽放入49克的水中,鹽和鹽水的比是()
A、1:49 B、1:48 C、1:50
3、x ×=y×時,x:y=()
A、: B、5:3 C、3:
54、一本書已看總頁數的60%,沒看頁數與總頁數的比是()
A、2:3 B、3:5 C、2:
55、花生的出油率一定,花生的質量和榨出的油的質量()
A、成正比例 B、成反比例 C、不成比例
四、計算
1、化簡比
1.5:3.5 1:1.8 9分:0.4小時
2、求出比值
3.75:1 1.35:2.4 2:3
3、解比例
= 7:x=4.8:9.6 x:=12:
五、解決問題
1、房產博覽會上,某樓盤的模型是按照1:500的比例尺制作的,該樓盤1號樓模型高7厘米,它的實際高度是多少?
2、蘭州到烏魯木齊的鐵路長約1900千米,在比例尺是1:40000000的地圖上,它的長是多少?
3、修一條長12千米的公路,開工3天修了1.5千米。照這樣計算,修完這條路還要多少天?
4、專業戶劉大伯家養雞、鴨、鵝共1800只,這三種家禽的只數比是5:3:1。劉大伯家養雞、鴨、鵝各多少只 ?
5、把一批書按4:5:6的比例分給甲、乙、丙三個班,已知甲班比丙班少分到24本,三個班各分到多少本書?
6、亮亮家造了新房,準備用邊長是0.4米的正方形地磚裝飾客廳地面,這樣需要180塊,裝修老師建議改用邊長0.6米的正方形地磚鋪地。請你算一算需要多少塊?
六、數學思考
一艘輪船以每小時40千米的速度從甲港開往乙港,行了全程的20% 后,又行駛了1小時,這時未行路程與已行路程的比是3:1。甲乙兩港相距多少千米?