啟航新課堂七年級上

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1、啟航新課堂七年級上 篇一：啟航新課堂七年級數(shù)學(xué)上冊3單元t-ment 啟航新課堂單元測試 [請支持正版] 第三章字母表示數(shù) （總分：150分；時間： 100 分） 姓名學(xué)號 成績 一、選擇題（每小題3分，共30分） 1．用代數(shù)式表示“2m與5的差”為（ ） Ａ．2m?5 Ｂ．5?2m Ｃ．2(m?5)Ｄ．2(5?m) 2 ．某商場2006年的銷售利潤為a，預(yù)計以后每年比上一年增長b%，那么2008年該商場的銷售利潤將是（ ） A．a(chǎn)?1?b? B． a?1?b%? C．a(chǎn)?a??b%? 222 D．a(chǎn)?ab2 3．當(dāng)x?2時，代數(shù)式

2、2x?3的值為（ ） Ａ．1 Ｂ．?1Ｃ．5 Ｄ．3 4．下列各組中的兩項不屬于同類項的是（ ） A．3m2n3和?m2n3 xy和25xy5 1C．－1和4B． D．a(chǎn)2和x3 A．3a?2b?5ab B．5y?3y?2 C．7a?a?7a2 D．3x2y?2yx2?x2y 6．化簡?0?(x?3y)?的結(jié)果是（ ） A．x?3y B．?x?3y C．?x?3y D．x?3y 7．一個長方形的周長為30，若長方形的一邊長為x，則此長方形的面積是（ ） Ａ．x(15?x) Ｂ．x(30?x)Ｃ．x(30?2x) Ｄ．x(15?x)

3、 8．若a?b,b?2c，則a?b?2c等于（ ） Ａ．0Ｂ．3 Ｃ．3a Ｄ．?3a 9．為了做一個試管架，在長為acm(a?6cm)的木板上鉆3個小孔（如圖），每個小孔的直徑為2cm，則x等于（ ） a?3a?3Ａ．cmＢ．cm 44 a?6a?6Ｃ．cmＤ．cm 44第9題圖 10．若代數(shù)式(m?2)x2?5y2?3的值與字母x的取值無關(guān)，則m的值是（ ） A．2B．－2 C．－3D．0 二、填空題（每小題3分，共30分） 11．x平方的3倍與?5的差，用代數(shù)式表示為 ；當(dāng)x??1時，代數(shù) 式的值為． 12．正方體的棱長為a，則它的表面積為

4、；若a?2cm，則表面積為 ． 13．某班a名同學(xué)參加植樹活動，其中男生b名(b?a)．若只由男生完成，每人 需植樹15棵；若只由女生完成，則每人需植樹 棵． 1114．一根鋼筋長a米，第一次用去了全長的，第二次用去了余下的，則剩余32 部分的長度為 米．（結(jié)果要化簡） 15．代數(shù)式5m?2的實際意義可表示 為 ． 1?x2 16．當(dāng)x??1時，代數(shù)式的值是 2(1?x) ． 17．合并同類項：①15x?4x?10x?；② ?p2?p2?p2?． 18．?6x?7y?3的相反數(shù)是． 19．代數(shù)式a2?a?3的值為7，則代數(shù)式2a2?2a?3的

5、值為． 20．用黑白兩種顏色正方形的紙片按黑色紙片數(shù)逐漸加l的規(guī)律拼成一列圖案： （1）第4個圖案中有白色紙片張； （2）第n個圖案中有白色紙片張． 三、解答題(共40分)： 21．化簡（每小題4分，共16分）： 2（1）?9y?6x2?3(y?x2)； （2）5(a2b?3ab2)?2(a2b?7ab2)； 3 22222??7x?(4x?3)?2x5a?a?(5a?2a)?2(a?3a)?（3）3x2??； （4） ????． 3522．（6分）先化簡，再求值：m?(m?1)?3(4?m)，其中m??3． 22 23．（8分）（1）根據(jù)下列條

6、件，分別求代數(shù)式4(x?y)?5(x?y)?11(x?y)的值： ①x?3,y?1；②x?0,y??2；③x??0.5,y??2.5； （2）觀察上述計算結(jié)果，請你給出一組x,y的值，使得上述代數(shù)式的值與 （1）中①的計算結(jié)果相同． 24．（10分）初一年級學(xué)生在5名教師的帶領(lǐng)下去公園秋游，公園的門票為每人 30元.現(xiàn)有兩種優(yōu)惠方案，甲方案：帶隊教師免費，學(xué)生按8折收費；乙方案：師生都7.5折收費. （1）若有m名學(xué)生，用代數(shù)式表示兩種優(yōu)惠方案各需多少元？ （2）當(dāng)m?70時，采用哪種方案優(yōu)惠？ （3）當(dāng)m?100時，采用哪種方案優(yōu)惠？ 篇二：啟航新課堂七年

7、級下冊英語答案 啟航新課堂七年級下冊英語答案 單項選擇 BCABDBBBAACDABC 完形填空 AADBCBADCB 閱讀理解 CDABA TFFFF 補全對話 This is Peter. Are you free this tomorrow? Are you free this Sunday? Yes,Id love to Ill call here 詞匯 speak carry flying cook afraid 漢譯英 This call about would have a picnic What up go fishing Section A Ⅰ1.unday2.orget

8、3.free4.kite5.ring Ⅱ1.to go2.shopping3.toke4.Are5.us Ⅲ1.Please tell him about the picnic2.Dont dorget to bring your guitar3.Would you to go fishing4.What do you thing of this green skirt5.Are you free this Sunday Section B Ⅰ1.CDEAB Ⅱ1.DDBAA ⅢFGCEB Section C Ⅰ1.to have a picnic with2.very happy3.goin

9、g fishing4.afraid have no5.ask to call back ⅡWould like to visit 2.What would you 3. dont have 4.Does have 5.want to Ⅲ JBACEIDGHF Section D Ⅰ1.calls2.shopping3.songs4.you5.having6.tell Ⅱ1.Would 2.can3.can 4.May5.Would Ⅲ1.What about cook 2.at home 3.like 4.Who are 5.cant see any 篇三：啟航新課堂七年級下冊英語試題

10、啟航新課堂七年級下冊英語試題 一）單項選擇 1. Let’s ____ after school. A. to play basketball B. play basketball C. play a 2. ____ see the giraffes. A. Let B. Let we C. Let’s 3. --- _____ do you like animals?--- _____ they are cute. A. Why, Because B. Why, So C. What, Because 4. Do you want __

11、___? A. eat rice B. to eat riceC. to eat rices 5. A: Let’s see the monkeys first. B: _________? A: Because they’re interesting. A. WhyB. What C. Where 6. _________ these tigers _______ from? A. Where, are B. Where, come C. Where are, / 7. I like koalas because they are ___

12、______ friendly. A. a kind of B. kind of C. kinds of 8. —Where is he ___________? —South Africa. A. for B. fromC. like 9. --_______ he ________ breakfast at home? -- Yes. A. Dose, have B. Does, haveC. Does, has 10. _____ pandas from China? A. Are B. Is C. Do 11.The elephant

13、s are______great danger in Africa. A.are B.is C. does D.do 12. I like_______, but this afternoon I don’t like_______. A.swimming;swimming B.to swim; to swim C.swimming; to swimD. to swim; swimming 13.The trees are green. Don’t______ A. cut down them B. cut them up C. cut them

14、 dowm D. cut up them 14. One of the boys________pet. The pet is really cute. A. have B. has C. keep D. save (二)連詞成句。 1. lions, the, let, first, see, us __________________________________________________________. 2. pandas, why, want, see, to, do, the, you _____________________

15、___________________________________? 3. they, are, ugly, because ________________________________________________________. 4. South Africa, lions, from, are, those _________________________________________________________. （三）按要求完成句子 1. I like monkeys because they are cute. （就劃線部分提問

16、）______ ______ you like monkeys? 2. us let pandas see. (連詞成句)_____________________________________________ 3. do you tigers why like ? （連詞成句）___________________________________ 4. The koala comes from Australia.(變否定句) The koala ________ ________ from Australia. 5. He likes pandas

17、 very much.(變一般疑問句) _______ he ________ pandas very much? 6. The beautiful girl wants to see giraffes.(對劃線部分提問) ________ ________ does the shy girl want to see? 7. Pandas are from China.(同義句轉(zhuǎn)換) Pandas _________ ________ China. （四）閱讀理解 A There is an elephant and a monkey.The

18、y’re friends, but one day they want to know who is stronger（更壯）. One of them says, “Who can get apples over there, who is stronger.” There’s a river over there. Monkey says, “I can’t swim.” Elephant says, “I can swim. Please sit on my back.” They go across the river. The apple trees are very high.

19、 The elephant can’t reach（夠著）the apples. The monkey climbs（爬）up the tree and gets many apples. Now they know they should help each other. 根據(jù)短文內(nèi)容選擇最佳答案。 ()1.The elephant and the monkey want to know _____. A.who is smarterB.who is higherC.who can swimD.who is stronger ()2.______ can’t s

20、wim. A.The elephantB.The monkeyC.The big animalsD.The small animals ()3.______ can’t reach the apples. A.The elephantB.The monkeyC.The high animalsD.The short animals ()4.At last the monkey goes across the river with the help of ______. A.the elephantB.the monkeyC.an animalD.a boat (

21、)5.From the story we should _______. A.learn from the elephantB.learn from the monkey C.A and BD.help each other B Handan comes from China, she is a clever and beautiful girl. She studies in a middle school. She has four pen pals. They are from different countries and like different anim

22、als. Linda is from America. Her favorite animal is the penguin. The penguin likes ice very much. Lily comes from Australia. The koala is her favorite animal. The koala likes to eat leaves. And it sleeps during the day, but it gets up at night. Bob is from India. His favorite animal is the elephant.

23、Grass is the elephant’s favorite food. Tom is a Canadian boy. He likes the tiger best. The tiger likes to eat meat. What is Handan’s favorite animal? It is the panda. Bamboo is panda’s favorite. Name Country Favorite animal What do the animals like? Handan 1._________ Panda 2.____

24、______ 3.________ America 4.__________ ice 5.________ Australia koala 6.___________ Tom Canada 7.___________ 8.___________ 9._________ India 10.__________ grass C People come back to their homes to spend the day with their parents or their children. On Christm

25、as Day bells ring everywhere. The ringing bells tell people Christmas is coming. People sing and dance day and night. They have a good time. Most families buy a Christmas tree for their children. And there are some presents hanging(掛)from the tree here and there. People also put presents in child

26、ren’s stockings. In many places, Father Christmas himself brings presents to them. He is a kind man and in red clothes. There is a big bag on his back. In it there are a lot of presents. Christmas is also a day when people enjoy all kinds of food. But some poor people have no homes and have no fo

27、od to eat. They die of cold and hunger（饑餓）on Christmas Day. 根據(jù)短文內(nèi)容判斷正(T)誤(F)。 ()1.Chrismas is a very important day in English-speaking countries in a year. ()2.All people have a good time on Christmas Day. ()3.Father Christmas wears red clothes. ()4.There are a lot of Christmas trees in Father Christmas’ bag. ()5.Some poor people die on Christmas Day because they have no homes and no food to eat. （五）從方框中選擇最佳選項完成對話. A. ChinaB. Because they are cute. C. OK. Let’s go.D. They are next to the giraffes. 《啟航新課堂七年級上》