数学人教版四年级上册第三单元 测试题_小学教育-小学考试.pdf

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1、数学人教版四年级上册第三单元 测试题 一、口算（16 分）1505=1902=2107=3502=183=6080=354=1850=3012=234=3080=2530=49104 70199 59221 89202 二、填空。（12 分）1、123 个 56 的和是多少列式为（），积是（）。2、18040 先口算出（）（）的积，再在积的末尾添上（）个 0。3、（）时间路程。4、师大附小在校学生人数已达到 4034 人，大约是（）人。5 上海磁悬浮列车每小时行驶的速度是 340 千米，可以简写成（）。6、在里填上“”、“”或“”36 120 12 360 120 40 10 400 24 2

2、0 480 10 300 5 50 30 三、判断。（对的打“”,错的打“”10 分）1、203 50 积的末尾有 2 个 0 （）2、三位数乘两位数积一定是五位数。（）3、用 5 倍的放大镜看一个 30 度的角，看到的角的度数应该是150 度。（）4、两个数相乘的积一定比其任何一个数大。（）5、一个因数扩大（或缩小）若干倍，积也扩大（或缩小）若干倍。（）四、轻松选择（10 分）1、两数相乘，如果一个因数扩大 3 倍，要使积不变，另一个因数应（）。A乘 3 B.除以 3 C.不变 2、两位数乘两位数的积（）。A.是四位数 B.是三位数 C.可能是三位数也可能是四位数 3、估算 146 43，最

3、合适的算法是（）。A100 40 B.150 40 C.100 45 4、下列算式（）的积与 340 200 的积不相等。A170 400 B.640 100 C.680 100 上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问

4、题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应5.小明 3 分钟行了 180 米，求他每分钟行多少米？运用数量关系是（）。A速度 时间=路程 B.路程 速度=时间 C.路程 时间=速度 五、算一算（26 分）1、笔算（20 分）632 18 308 45 480 50 109 50 2、列式计算（6 分）1、26 的 45 倍是多少？2、一个因数是 35，另一个因数是 142，积是多少？六、解决问题（26 分）上个时间路程师大附小在校学生人数已达到人大约是

5、人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应 1、王伯伯到超市买塑料桶，每个塑料桶

6、18 元，他想买 5 个，王伯伯带了 100 元，钱够吗？（5 分）2、一个坏掉的水龙头每分钟要白白流掉 168 克水，15 分钟要浪费掉多少克的水？（5 分）3、学校准备发课外书，发给 16 个班，每班 140 本，还需要 50本作为捐赠灾区的物品，学校应买多少本课外书？（5 分）4、甲地到乙地共 2000 千米，汽车从甲地出发开往乙地，行了16 小时，每小时行 65 千米，这时汽车离乙地还（5 分）5、张大伯把一车蔬菜送到菜市场，去时的速度是 40 千米/时，用了 3 小时送到，返回时只用了 2 小时，返回的速度是多少？上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行

7、驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应（6 分）when I arrived in Buenos Ai

8、res in the beginning of 2010,I could barely order food in a local restaurant.Two years later,I calmly explained the mechanics of Russian grammar to a Guatemalan friend in her native Spanish.Today,Im conversationally fluent in both Spanish and Brazilian Portuguese,and low conversational in Russian.Im

9、 not going to blow smoke up your ass and tell you it was easy or that theres some shortcut or hack.I practiced my ass off.Honestly,Ive seen the supposed“hacks”for language-learning,and none of them worked for me.It took hours of study combined with stumbling through many,many conversations.上个时间路程师大附

10、小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应Here a

11、re some language-learning tips Ive gathered over the past few years:1.Conversation,Conversation,Conversation.If theres a“secret”or“hack”to learning a new language,its this:hours and hours of awkward and strenuous conversation with people better than you in that language.An hour of conversation(with

12、corrections and a dictionary for reference)is as good as five hours in a classroom and 10 hours with a language course by yourself.There are a few reasons for this.The first is motivation.I dont care how cool your study guide is,youre going to be far more invested and motivated to communicate with a

13、 live person in front of you than a book or audio program on your computer.The second reason is that language is something that needs to be processed,not memorized.Im no expert on language learning,but in my experience staring and memorizing a word in a book or with flashcards 100 times does not sti

14、ck the same way that being forced to use a word in conversation a mere two or three times does.上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多

15、少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应I believe the reason is that our minds place more priority on memories which involve actual human and social experiences,memories which have emotions tied to them.So,for instance,if I look up the verb f

16、or“to complain”and use i t in a sentence with a new friend,chances are Im always going to associate that word with that specific interaction and conversation I was having with her.Whereas I can blow by that same word 20 times with flashcards,and even though I may get it right,I havent actually pract

17、iced implementing it.It means nothing to me,so it is less likely to stick with me.2.Intensity of study trumps length of study.What I mean by this is that studying a language four hours a day for two weeks will be more beneficial for you than studying one hour a day for two months.This is one reason

18、why so many people take language classes in school and never remember anything.Its because they only study 3-4 hours per week and often the classes are separated by multiple days.Language requires a lot of repetition,a lot of reference experiences,and a consistent commitment and investment.Its bette

19、r to allot a particular period of your life,even if its only 上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱

20、够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应1-2 weeks,and really go at it 100%,than to half ass it over the course of months or even years.3.Classes suck and are an inefficient use of time and money.All things considered,you get a really poor return for your time and effort in gr

21、oup classes.There are two problems.The first is that the class moves at the pace of its slowest student.The second is that language learning is a fairly personal process everyone naturally learns some words or topics easier than others,therefore a class is not going to be able to address each studen

22、ts personal needs as well or in a timely fashion.For instance,when I took Russian classes I found verb conjugations to be simple because I had already learned Spanish.But an English classmate struggled quite a bit with them.As a result,I spent a lot of my class time waiting around for him to catch u

23、p.I also had a German classmate who had already been exposed to cases,whereas I had no clue what they were.Im sure he ended up waiting around for me to figure it out as well.The larger the classroom,the less efficient its going to be.Anyone who had to take a foreign 上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小

24、时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应language in school and retaine

25、d absolutely none of it can tell you this.4.Start with the 100 most common words.Not all vocabulary is made the same.Some gives you a better return on investment than others.For instance,when I lived in Buenos Aires,I met a guy who had been studying with Rosetta Stone for months(not recommended).I h

26、ad been working on and off with a tutor for a few weeks,but I was surprised by how he could not follow even the most basic of conversations despite months of study and living there.It turns out,much of the vocabulary he had been studying was for kitchen utensils,family members,clothing and rooms in

27、a house.But if he wanted to ask someone which part of town they lived in,he had no idea what to say.Start with the 100 most common words and then make sentences with them over and over again.Learn just enough grammar to be able to do this and do it until you feel pretty comfortable with all of them.

28、5.Carry a pocket dictionary.This made a much bigger difference than I expected.I carry an English-Spanish 上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行

29、多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应dictionary app on my phone and I used it all the time when I live in Spanish-speaking countries.My first two weeks in Brazil,I was lazy and kept forgetting to download an English-Portuguese a

30、pplication.I struggled in my conversations A LOT during those two weeks,despite knowing basic Portuguese.Once I downloaded the dictionary,there was an immediate difference.Having it on your phone is great,because it takes two seconds to look something up in the middle of conversation.And because you

31、re using it in conversation,youre that much more likely to recall it later.Even something that simple affected my conversations and ability to interact with locals a great deal.6.Keep practicing in your head.The other use for your dictionary is that you can practice while going about your day and no

32、t talking to anyone.Challenge yourself to think in the new language.We all have monologues running in our head,and typically they run in our native tongue.You can continue to practice and construct sentences and fake conversations in your head in a new language.In fact,this sort of visualization lea

33、ds to much easier conversations when you actually have 上个时间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏

34、掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应them.For instance,you can envision and practice a conversation about a topic youre likely to have before you actually have it.You can begin to think about how you would describe your job and explain why youre in the foreign country in the new

35、 language.Inevitably,those questions will come up and youll be ready to answer them.7.Youre going to say a lot of stupid things.Accept it.When I was first learning Spanish,I once told a group of people that Americans put a lot of condoms in their food.Later,I told a girl that basketball makes me hor

36、ny.Um,yeah Its going to happen.Trust me.8.Figure out pronunciation patterns.All Latin-based languages will have similar pronunciation patterns based on Latin words.For instance,any word that ends in“-tion”in English will almost always end in“-cin”in Spanish and“-o”in Portuguese.English-speakers are

37、notorious for simply adding“-o”“-e”or“-a”to the end of English words to say Spanish words they dont know.But stereotypes aside,its surprising how often its correct.“Destiny”is“destino,”“motive”is“motivo,”“part”is“parte”and so on.In Russian,case endings always rhyme with one another,so if you are 上个时

38、间路程师大附小在校学生人数已达到人大约是人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应

39、talking about a feminine noun(such as“Zhen-shee-na”),then you know that the adjectives and adverbs will usually rhyme with its ending(“krasee-vaya”as opposed to“krasee-vee”).9.Use audio and online courses for the first 100 words and basic grammar.After that they should only be used for reference and

40、 nothing more.There are a lot of study materials:Pimsleur,Rosetta Stone,Berlitz,DuoLingo,etc.These courses are great for getting you from absolutely no ability in a language to being able to speak basic sentences and phrases within a few days time.Theyre also good for teaching the most fundamental v

41、ocabulary(words such as:the,I,you,eat,want,thanks,etc.).But the weakness of study materials is that they dont allow for much useful practice.The greatest return on investment in language learning is forcing yourself to speak and communicate with others,and whe n youre sitting in your bedroom with a

42、book or a software program,youre not being forced to formulate meaning and significance in the new language on the spot.Instead,youre encouraged to parrot and copy concepts and patterns youve observed elsewhere in the materials.As mentioned before,I feel that these are two 上个时间路程师大附小在校学生人数已达到人大约是人上海

43、磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应different types of lear

44、ning and one is far more useful than the other.10.After the first 100 words,focus on becoming conversational.Studies have shown that the most common 100 words in any language account for 50%of all spoken communication.The most common 1,000 words account for 80%of all spoken communication.The most co

45、mmon 3,000 words account for 99%of communication.In other words,there are some serious diminishing returns from learning more vocabulary.I probably only know 500-1,000 words in Spanish and in most conversations I never have to stop and look a word up in my phone.The basic grammar should get you spea

46、king fundamental sentences within a matter of days.“Where is the restaurant?”“I want to meet your friend.”“How old is your sister?”“Did you like the movie?”The first few hundred words will get you pretty far.Use them to get as comfortable as possible with grammar,idioms,slang 上个时间路程师大附小在校学生人数已达到人大约是

47、人上海磁悬浮列车每小时行驶的速度是千米可以简写成在里填上或三判断对的打错的打分积的末尾有个三位数乘两位数积一定是五位数用倍的放大镜看一个度的角看到的角的度数两数相乘如果一个因数扩大倍要使积不变另一个因数应乘除以不变两位数乘两位数的积是四位数是三位数可能是三位数也可能是四位数估算最合适的算法是下列算式的积与的积不相等小明分钟行了米求他每分钟行多少米运用数量关积是多少六解决问题分王伯伯到超市买塑料桶每个塑料桶元他想买个王伯伯带了元钱够吗分一个坏掉的水龙头每分钟要白白流掉克水分钟要浪费掉多少克的水分学校准备发课外书发给个班每班本还需要本作为捐赠灾区的物品学校应and constructing tho

48、ughts,jokes and ideas in the new language on the fly.Once youre able to joke consistently in the new language,thats a pretty good sign that its time to expand your vocabulary out.A lot of people attempt to expand their vocabulary too quickly and too soon.Its a waste of time and effort because theyre

49、 still not comfortable with basic conversations about where theyre from,yet theyre studying vocabulary about economics or medicine.It makes no sense.11.Aim for the brain melt.You know how when you do a lot of intellectually-intensive work for hours and hours on end,at some point your brain just feel

50、s like a lump of gravy?Shoot for that moment when learning languages.Until youve reached brain-gravy stage,you probably arent maximizing your time or effort.In t he beginning,youll hit mind-melt within an hour or two.Later on,it may take an entire night of hanging out with locals before it happens.B