第一篇：第十單元第四節(jié)同步練習(xí)試題

1、說出呼吸系統(tǒng)的結(jié)構(gòu)和功能

2、說出呼吸運動的過程

3、說出肺活量的概念，嘗試使用自制的肺量計測量肺活量

4、在灰塵較多的地方停留久了，鼻腔前部的鼻毛及黏液中都粘有許多灰塵。這說明鼻腔對吸入的空氣有什么作用?

5、北歐的冬天非常寒冷，在那里生活的人和我們相比鼻子的形狀有什么特點?為什么?

6、患重感冒時，往往要用嘴呼吸。在這種情況下，早上醒來時會覺得嗓子非常干，為什么平時用鼻呼吸時，沒有這種現(xiàn)象?

7、痰是怎樣產(chǎn)生的?為什么不要隨地吐痰?

8、根據(jù)以上問題，你認(rèn)為呼吸道除了保證氣流的暢通外，還有哪些作用?

9、有了呼吸道對空氣的處理，人體就能完全避免空氣中有害物質(zhì)的危害嗎?

10、你知道哪些呼吸系統(tǒng)疾病?你認(rèn)為應(yīng)如何預(yù)防?

第二篇：第四單元同步練習(xí)

I.Reading Comprehension

Passage One

Questions 1 to 5 are based on the following passage:

If the salinity(含鹽量)of ocean waters is analyzed, it is found to vary only slightly from place to place.Nevertheless, some of these small changes are important.There are three basic processes that cause a change in oceanic salinity.One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water-to-water vapor.In this manner, the salinity is increased, since the salts stay behind.If this is carried to the extreme, of course, white crystals of salt would be left behind;this, by the way, is how much of the table salt we use is actually obtained.The opposite of evaporation is precipitation(降水), such as rain, by which water is added to the ocean.Here the ocean is being diluted(沖淡)so that the salinity is decreased.This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean.Thus salinity may be increased by the subtraction of the water by evaporation, or decreased by the addition of fresh water by precipitation or runoff.Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation.Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.A third process by which salinity may be altered is associated with the formation and melting of sea ice.When seawater is frozen, the dissolved materials are left behind.In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared.Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.In the Waddell Sea, of America;the densest water in the oceans is formed as a result of this freezing process, which increases the salinity of cold water.This heavy water sinks and is found in the deeper portions of the oceans of the world.1.All of the following are processes that decrease salinity except ____.A.runoffB.evaporationC.meltingD.precipitation

2.The salinity of the oceanic water is generally higher in ____.A.tropical areasB.coastal regionsC.turbulent areasD.rainy regions

3.The Waddell Sea is mentioned in the passage to ____.A.give an example of cold water salinityB.point out the location of deep waters

C.compare Antarctic waters with Arctic watersD.indicate that this body of water has salinity variations

4.Which of the following statements is NOT TRUE, according to the passage?

A.Various factors combine to cause variations in the salinity of water.B.As a result of the formation of ocean ice water salinity decreases.C.The salinity of the water near the bottom of the oceans is relatively high.D.In coastal areas the ocean is diluted by rivers.5.The major points discussed in the passage is ____.A.the subtraction of water

B.the conversion of liquid water to water vapor

C.the salinity of ocean water

D.the effect of precipitation on the salinity of ocean water

Passage Two

Questions 1 to 5 are based on the following passage:

The cat has probably been associated with Man since it was first given a place by his fire in return for keeping the cave dwelling free of rats and mice.The relationship between the cat and Man has not been constant, however, Man’s attitude has ranged through indifference and neglect to the extremes of persecution(殘害)and worship.The Egyptians had great faith in the power of a living cat to protect them from both natural and supernatural evils.They made small ornaments and charms representing cats and the various cat deities(神性).These decorated their homes and were buried with them to ensure that the soul of the dead person was protected on its perilous journey through the hostile spirit world.Pious Egyptians always mummified their cats and had them buried with almost as much reverence(尊嚴(yán))as if they were human beings.At the end of the last century, a cat cemetery was discovered near the site of the ancient city of Bubastis.Here literally hundreds of thousands of little cat mummies were found ranged neatly on shelves.Some were stolen, destroyed, and antique dealers sold many to tourists.Thousands were left.

The ancient Jews believed that when a religious person who had reached a high degree of sanctity died, his soul entered the body of a cat and remained there until the cat itself died a natural death.Only then could it enter Paradise.Exactly the same belief existed in Burma and Thailand until comparatively recently, and beautiful sacred cats were kept in great luxury in the temples.When a member of the royal house of Siam died, his favorite cat was buried alive with him but a small opening was always left for its escape.When the cat emerged, the priests knew that the prince’s soul had safely entered its feline(似貓的)host, and the cat was ceremonially sent to the Temple.At the crowning of the young King of Siam in 1926, a white cat was carried by a court official in the procession to the Throne Room.The old King’s soul was resting in this cat, and his faithful former courtiers knew that he would want to be present at the crowning of his successor.6.Man’s attitude towards cats has been ____.A.constantly hostile throughout the ages

B.friendly

C.through many changes

D.negligent from time immemorial

7.The word “perilous” in the last sentence of Paragraph 2 most probably means ____.A.dangerousB.longC.boringD.pleasant

8.Ancient Egyptians buried catlike ornaments with them for the reason that ____.A.they had blind worship of cats

B.they had natural inclination to persecute cats

C.they hoped to be under the cat’s protection against all evils

D.cats were their pets

9.The ancient Jews held the belief that ____.A.good cats could enter paradise after they died a natural death

B.a good man’s soul was protected by a cat

C.a holy person’s soul entered a cat’s body after his death

D.man had to believe religion

10.At the 1926 Coronation of Siam a white cat was ____.A.escorted to the Temple

B.believed to be the spiritual guardian of the old king

C.presented to the new king

D.buried alive with the old king

II.Cloze

Directions: There are 20 blanks in the following passage, For each blank there are four choices marked A, B, C and D on the right side of the paper.You should choose the one that best fits into the passage.Then mark the corresponding letter on the Answer Sheet with a single line through the center.For the past two years, I have been working on students’ evaluation of classroom teaching.I have kept a record of informal conversations __1__ some 300 students from at __2__ twenty one colleges and universities.The students were generally __3__ and direct in their comments __4__ how course work could be better __5__.Most of their remarks were kindly __6__—with tolerance rather than bitterness—and frequently were softened by the __7__ that the students were speaking __8__ some, not all, instructors.Nevertheless, __9__ the following suggestions and comments indicate, students feel __10__ with things as they are in the classroom.

Professors should be __11__ from reading lecture notes.” It makes their __12__ monotonous(單調(diào)的).”If they are going to read, why not__13__ out copies of the lecture?

Then we __14__ need to go to class.Professors should __15__ repeating in lectures material that is in the textbook.“__16__ we’ve read the material, we want to __17__ it or hear it elaborated on, __18__ repeated.” A lot of students hate to buy a __19__ text that the professor has written __20__ to have his lectures repeat it.”

1.A.involvingB.countingC.coveringD.figuring

2.A.bestB.leastC.lengthD.large

3.A.reservedB.hardworkingC.politeD.frank

4.A.overB.atC.onD.of

5.A.presentedB.submittedC.describedD.written

6.A.receivedB.addressedC.madeD.taken

7.A.occasionB.truthC.caseD.fact

8.A.onB.aboutC.atD.with

9.A.thoughB.whetherC.asD.if

10.A.dissatisfiedB.unsatisfactoryC.satisfiedD.satisfactory

11.A.interferedB.interruptedC.discouragedD.disturbed

12.A.voicesB.soundsC.pronunciationD.gestures

13.A.holdB.leaveC.dropD.give

14.A.couldn’tB.wouldn’tC.mustn’tD.shouldn’t

15.A.refuseB.prohibitC.preventD.avoid

16.A.OnceB.UntilC.HoweverD.Unless

17.A.rememberB.argueC.discussD.keep

18.A.yetB.notC.andD.or

19.A.desiredB.revisedC.requiredD.deserved

20.A.aboutB.howC.butD.only

第三篇：北師大版數(shù)學(xué)一年級下冊第六單元第四節(jié)閱覽室同步練習(xí)

北師大版數(shù)學(xué)一年級下冊第六單元第四節(jié)閱覽室同步練習(xí)

姓名:________

班級:________

成績:________

小朋友，帶上你一段時間的學(xué)習(xí)成果，一起來做個自我檢測吧，相信你一定是最棒的!

一、填空題

(共10題；共40分)

1.（3分）240里面有_______個百和_______個十，也可以看作是_______個十。

2.（1分）650－370=_______

3.（1分）由圖寫數(shù)

_______

4.（10分）按照數(shù)的順序填數(shù)。

（1）

（2）

5.（2分）填＞、＜或=

402－164_______127＋183

10×9＋30_______10×8＋40

6.（3分）_______－_______＝_______

7.（10分）你能快速算出下面各題嗎？試一試．

2×7＋8＝_______

12×4＝_______

43＋29＝_______

6×3＋5＝_______

50×7＝_______

500－9＝_______

7×8＋6＝_______

120×4＝_______

30×6＝_______

864－300＝_______

8.（1分）修路隊要修一段長975千米的公路，第一組修了234千米，第二組修了326千米，剩下的由第三組修，第三組要修_______千米？(用兩種方法解答)

9.（8分）直接寫出得數(shù)．

280÷40=_______

14×20=_______

84÷3=_______

48﹣48÷24=_______

360÷12=_______

460﹣80=_______

125×8=_______

450÷5÷3=_______

10.（1分）奪紅旗．

_______

二、判斷題

(共5題；共10分)

11.（2分）40減去20得20。

12.（2分）從右邊起第一位是十位，第二位是個位。

13.（2分）判斷對錯234－75＋25=234－100

14.（2分）學(xué)校足球隊原來有36人，退出14人后，足球隊現(xiàn)在有22人

15.（2分）從左數(shù)第4個是。

三、選擇題

(共5題；共10分)

16.（2分）“25○52”，比較大小，在○里應(yīng)填的符號是（）

A

.＞

B

.＜

C

.＝

D

.＋

17.（2分）“500×4○2000”,比較大小，○里應(yīng)填的符號是（）

A

.＞

B

.＜

C

.=

D

.÷

18.（2分）168＋235－114＝（）

A

.285

B

.286

C

.288

D

.289

19.（2分）計算并驗算

679＋5758＋896=（）

A

.4120

B

.7333

C

.8126

D

.8547

20.（2分）9角+5元=（）

A

.5元9角

B

.14元

四、應(yīng)用題

(共5題；共28分)

21.（5分）小白兔付了50元買了一個排球，找回18元，一個排球多少錢？

22.（5分）停車場里有小汽車35輛，公交車比小汽車少8輛，大卡車比公交車多6輛，有多少輛公交車？多少輛大卡車？

23.（5分）楠楠比佳佳少背了多少個單詞？

24.（10分）曉軍準(zhǔn)備參加某市小學(xué)生運動會，爸爸到商場幫他購買運動套裝（鞋、衣、褲）。

商品

單價

215元

288元

176元

（1）曉軍的爸爸大約應(yīng)該準(zhǔn)備多少錢才夠呢？

（2）收銀員應(yīng)收多少錢?

25.（3分）看圖回答

（1）自行車和摩托車一共有_______輛.（2）小汽車比公共汽車多_______輛.（3）這四種車一共有_______輛.參考答案

一、填空題

(共10題；共40分)

1-1、2-1、3-1、4-1、4-2、5-1、6-1、7-1、8-1、9-1、10-1、二、判斷題

(共5題；共10分)

11-1、12-1、13-1、14-1、15-1、三、選擇題

(共5題；共10分)

16-1、17-1、18-1、19-1、20-1、四、應(yīng)用題

(共5題；共28分)

21-1、22-1、23-1、24-1、24-2、25-1、25-2、25-3、

第四篇：北師大版數(shù)學(xué)一年級下冊第五單元第四節(jié)拔蘿卜同步練習(xí)

北師大版數(shù)學(xué)一年級下冊第五單元第四節(jié)拔蘿卜同步練習(xí)

姓名:________

班級:________

成績:________

小朋友，帶上你一段時間的學(xué)習(xí)成果，一起來做個自我檢測吧，相信你一定是最棒的!

一、填空題

(共10題；共50分)

1.（6分）口算。

102+50=

_______??79+29=

_______??53+28=_______

86+32=

_______??84+18=_______?????77+52=_______

2.（24分）口算

8+3=_______?15+5=_______6+7=

_______18-8=_______17-4=_______

0+17=_______11+2=_______16+4=_______14+4=_______9-6=

_______

16-0=_______13+6=_______8+8=_______9+9=_______19-2=_______

16-5=_______12+8=_______13+3=_______13+7=_______17-7=_______

15+3=_______?8+9=_______11+4=_______7+7=_______

3.（2分）口算

630－90=_______

490＋80=_______

4.（4分）請你用最快的速度算出下面各題，觀察題目有什么特點，計算時有什么規(guī)律呢？

42－24＝_______

75－57＝_______

54－45＝_______

82－28＝_______

5.（2分）找規(guī)律，填一填．

4，3，6，9，8，27，10，_______，_______．

6.（2分）15與24的和是_______，再減去20，結(jié)果是_______。

7.（3分）筆算下列各題．

（1）27＋16=_______

（2）62－19=_______

（3）98－15=_______

8.（4分）在同一個算式的橫線上填上相同的數(shù)。(仿練教材第73頁第15題)

40-_______=30+_______

48+_______=54-_______

9.（1分）比100小1的數(shù)是_______。

10.（2分）在橫線上填上＞、＜或=．

（1）40＋35_______95－20

（2）76－40_______76－60

二、判斷題

(共5題；共10分)

11.（2分）最小的三位數(shù)比最大的兩位數(shù)大1（）

12.（2分）兩個加數(shù)都是30，和是60

（）

13.（2分）97前面的數(shù)是98，后面的數(shù)是96。

14.（2分）9999比10000大

15.（2分）34＋20＜60。

三、選擇題

(共5題；共10分)

16.（2分）127＋73=（）

A

.10

B

.200

C

.4

D

.17.2

17.（2分）461－72=（）

A

.388

B

.289

C

.389

D

.398

18.（2分）一個數(shù)最高位十萬位是8，十位上是9，其余各位上的數(shù)都是0，這個數(shù)是（）

A

.800090

B

.8009000

C

.90008

19.（2分）★比◆多（）

A

.0

B

.1

C

.2

D

.3

20.（2分）玲玲家的電表讀數(shù)如下表：(單位：千瓦時)

4月底

5月底

6月底

7月底

8月底

9月底

628

668

715

753

795

840

要計算她家6，7月共用電多少千瓦時，下面列式正確的是（）。

A

.715＋753

B

.753－668

C

.795－715

四、應(yīng)用題

(共5題；共27分)

21.（5分）買一臺電視和一臺電飯煲一共花多少元？

22.（2分）計算6947＋62785=

（1）6947＋62785=_______

（2）806＋17420=_______

23.（5分）花店運進(jìn)624朵月季花，每12朵扎成一束，可以扎成幾束？上午已賣出34束，花店還剩下月季花多少束？

24.（5分）媽媽看一本故事書，已經(jīng)看了14頁，還有34頁沒看，這本故事書有多少頁？

25.（10分）

（1）李叔叔乘坐依維克車去泰安，車票是多少錢？

（2）他拿80元錢買了些食品，找回33元，買食品花了多少錢？

參考答案

一、填空題

(共10題；共50分)

1-1、2-1、3-1、4-1、5-1、6-1、7-1、7-2、7-3、8-1、9-1、10-1、10-2、二、判斷題

(共5題；共10分)

11-1、12-1、13-1、14-1、15-1、三、選擇題

(共5題；共10分)

16-1、17-1、18-1、19-1、20-1、四、應(yīng)用題

(共5題；共27分)

21-1、22-1、22-2、23-1、24-1、25-1、25-2、

第五篇：北師大版數(shù)學(xué)四年級上冊第一單元第四節(jié)近似數(shù)同步練習(xí)

北師大版數(shù)學(xué)四年級上冊第一單元第四節(jié)近似數(shù)同步練習(xí)

姓名:________

班級:________

成績:________

小朋友，帶上你一段時間的學(xué)習(xí)成果，一起來做個自我檢測吧，相信你一定是最棒的!

一、填空題

(共10題；共21分)

1.（1分）將計算結(jié)果湊整到分．(用四舍五入法)

80.75元÷7≈_______

2.（2分）如果保留兩位小數(shù)，表示精確到_______位，應(yīng)看小數(shù)部分的_______位。

3.（3分）小數(shù)混合運算的順序與_______混合運算的順序一樣．

由3個1，9個0.1，6個0.01組成的數(shù)是_______，精確到十分位是_______．

4.（2分）近似值為6.90的最大三位小數(shù)為_______，最小三位小數(shù)為_______。

5.（1分）將計算結(jié)果湊整到分．(用四舍五入法)

430.55元÷3≈_______

6.（3分）4.385385385……，它的循環(huán)節(jié)是_______，用簡便方法表示是_______，將它保留三位小數(shù)是_______。

7.（2分）求商的近似值，只要計算到比要保留的小數(shù)位數(shù)_______就可以了。

求積的近似值，要計算出_______以后再取近似數(shù)。

8.（3分）求近似數(shù)時，保留整數(shù)，表示精確到_______位；保留一位小數(shù)，表示精確到_______位；保留兩位小數(shù)，表示精確到_______位。

9.（2分）一個兩位小數(shù)的近似數(shù)是6.0，這個兩位小數(shù)最大可能是_______，最小可能是_______。

10.（2分）在橫線上填上>、<或=

（1）_______

（2）_______

二、判斷題

(共6題；共12分)

11.（2分）近似數(shù)5和5.0比較，5.0比5精確．（判斷對錯）

12.（2分）9.956保留一位小數(shù)是9.0。

13.（2分）把4.998保留到十分位是5．

14.（2分）4.56÷2.3的得數(shù)保留一位小數(shù)是2.0。

15.（2分）近似數(shù)是6.32的三位小數(shù)不止一個。

16.（2分）準(zhǔn)確數(shù)有時大于近似數(shù)，有時小于近似數(shù)。

三、選擇題

(共5題；共10分)

17.（2分）估一估他可能買了哪種籃球．正確的答案是（）

A

.48元

B

.38元

C

.28元

18.（2分）（2015?貴陽）一個兩位小數(shù)精確到十分位是5.0，這個數(shù)最小是（）

A

.4.99

B

.5.1

C

.4.94

D

.4.95

19.（2分）求小數(shù)的近似數(shù)時，小數(shù)末尾的“0”（）去掉．

A

.能

B

.不能

C

.無法判斷

20.（2分）下列各數(shù)精確到0.01，錯誤的是（）。

A

.5.416≈5.42

B

.7.322≈7.32

C

.7.022≈7.02

D

.3.769≈3.80

21.（2分）0.987精確到十分位是（）

A

.1

B

.1.0

C

.0.9

D

.0.99

四、應(yīng)用題

(共4題；共20分)

22.（5分）將下列數(shù)湊整到萬．

23.（5分）一個數(shù)省略萬位后面尾數(shù)是5萬，那么這個數(shù)最大是多少？最小是多少？

24.（5分）有一個三位小數(shù)，四舍五入后是8.40，原來的三位小數(shù)可能會是哪些數(shù)？

25.（5分）五年級有班費24.2元，同學(xué)們賣廢品又得到16.4元。同學(xué)們想用這些錢買7元一本的《少年科技》書，能買幾本？

參考答案

一、填空題

(共10題；共21分)

1-1、2-1、3-1、4-1、5-1、6-1、7-1、8-1、9-1、10-1、10-2、二、判斷題

(共6題；共12分)

11-1、12-1、13-1、14-1、15-1、16-1、三、選擇題

(共5題；共10分)

17-1、18-1、19-1、20-1、21-1、四、應(yīng)用題

(共4題；共20分)

22-1、23-1、24-1、25-1、