小幽默(英文)

ISN’T IT A GOOD WAY? Mother:Tom,Ihear you’ve been fighting with one of those boys next door and have given him a black eye.Tom:Yeah.You see,they are twins and I want some way to tell them apart.Isn’t it a good way?THAT'S THE ONE I DIDN'T TOUCH Mother: …     

You''''ve Changed a Lot

It is one warm spring morning, two men are walking past ( 擦肩而 过)each other on a road. One says to the other, “ Oh, you’ve changed a lot. You used to(过去) have brown hair and now it’s gray. Your face used to be red and now it’s pale. You were thin and now you are fat. I can’t believe that it’s you, Mr. Smith.” The other man says,“But I’m not Mr. Smith.” The first man says,“Well, you’ve changed your name, too! ” ★想一想: 那个男人到底是不 是 Mr. Smith 呢?You've Changed a …     

I Love My Bedroom

I have a lovely bedroom.It’s big and nice. There is a bedin my bedroom. On the bed,there’s a toy cat. I sleep with it every night.Next to the bed, there is a blue bookcase. There are some photos, some toys and books in it . The desk is beside the bookcase. There is     

袋子的哥哥(英文)

A rich farmer had a big field of ripe(1)corn.He asked a poor man from the village to reap hisfield.“How long must I reap?”asked the poor man.“Until(2)the light(3)in the sky sets,”said therich farmer,pointing up at the sky.“And what will you pay me?”“I will give you a small bag of flour(4)ifyouwork well.”The poor man agreed(5)and began to reap therich man’s corn.He worked without rest.At noonhe stopped and rested for a short time under a tree.He had only one slice(6)of bread for lun…     

My Winter Holiday

My winter holiday is often colorful.In the morning,I go to thebookshop and read books.I can learn a lot from it.In the afternoon,I domy homework.Sometimes I help my mother do some housework.I alsoplay games with my friends.When I am free,I will surf the Internet.Ithink it’s a good way to study and relax.During the Spring FestivalI also visit my relatives and get a lot of     

My Plan for the Summer Holiday

<正>Summer holiday is coming.I’ll make a plan for it.In July,I want to finish my homework and I’d like to do some housework with my mum at home.Sometimes,I will cook for my parents.Maybe I’ll have a short trip with my grandparents in Shandong.I want to swim in the sea.I think it will be very interesting.     

My Home

Look!This is my home.This is the living room.It’s nice and clean.You can see a sofa,a fridge,a TV.There are all kinds of foods in the fridge.There are five toy dogs on the TV.This is my bedroom.It’s nice and clean too.You can see a window,a desk,a bed and a map of the world.On the desk,there are some books,because I like reading books.Under the bed,there is a basketball and a football,because I like sports.On the bed,there’s a toy dog.It’s very cute.     

圣诞节字谜会

256134(答案本期找)难度系数:★★★A cross(横向)2.It’s celebrated on D ecem鄄ber25th.5.It’s a child’s play thing.6.Santa rides in a.D ow n(纵向)1.The sam e as“presents”.2.Christm as songs ofjoy.3.Christm as and aH appy N ew Year.4.Santa fills it with presentsfor the children.santaiSlost!hanyouCelphimindfPiswaybacktotheNorthhole?ITSOCNK4AREYRM3TH SGIISTFG1ERHLY ACROLS62T5lezzupdrowsamtsirhCG本期“智力碰碰车”答案:圣诞节字谜会@小雨~~…     

My Classroom

This is my classroom.It’s big and bright.There is a big blackboard in front of the teacher’s desk.There is a big bookcase at the back of the classroom.There are many books in it.We all like reading books.On the wall,there are some beautiful pictures.And there are some balls in the basket.After class,we often play with them on the playground.I love my classroom.     

蟾蜍的大帽子(英文)

The toad (1) was very happy to get a hat on his birthday. His friend frog made the hat for him. The toad wore (2) the hat and had a walk with the frog. "I am really sorry, but the hat is too big," said the frog. "It doesn’t matter. I like it very much," answered the toad. The hat was too big, and it blocked (3) the toad’s eyes. "Bang! " The toad was knocked     

中国15个主产省区玉米生产技术效率研究

根据2006—2011年中国15个玉米主产省区的玉米生产成本面板数据,采用随机前沿生产函数对玉米生产技术效率进行测算,结果表明:15个玉米主产省区玉米生产的平均技术效率约为78.5%;人工成本等要素投入对玉米生产技术效率存在反向影响,而玉米价格、灌溉等因素具有正向影响;各省区之间玉米生产技术效率差距较大,黑龙江、吉林、内蒙古等省区的玉米生产效率最高,辽宁、山东、河南等省次之,而四川、贵州、湖北等省最低,呈现出较强的南北差异性。因此,在玉米产业发展中,要逐渐由要素投入为主向技术效率提升为主转变,通过发展专业合作社等路径推进优势区域的规模化和专业化玉米种植,完善价格支持系统以强化价格对玉米生产的促进作用,并努力提高玉米灌溉效率。     

辽西玉米需水规律及灌溉预报研究

以辽西半干旱区2004~2008年的玉米生长参数及农业气象资料为依据,应用CROPWAT模型模拟分析了该区玉米的需水及灌水量. 结果表明,玉米生育期需水趋势总体为正态分布,年需水量在572~645mm之间,苗期、拔节期、抽雄期、灌浆期需水量分别占总需水量的11.1%、30.2%、19.8%和38.9%;玉米灌溉需水量曲线因降雨差异在不同的年份呈现不同的变化型,基本分为抛物线型、中期平台型和双峰型3种;玉米的补充灌溉主要集中于7、8、9这3个月.     

玉米肽对提高脑卒中后患者运动能力的研究

目的:探讨玉米肽对脑卒中某些生化指标及运动能力的影响,为玉米肽作为天然运动营养补剂提供依据。方法:12名康复训练后并能独立进行太极拳训练3个月的男性脑卒中后患者随机分为实验组和对照组,两组患者均进行正常康复训练,实验组患者口服玉米肽4周,对照组患者服安慰剂4周。分别测试服药前后生化指标:血红蛋白(Hb)、肌酸激酶(CK)、SOD和MDA、血清睾酮(T)及10m步行时间。结果:服药前,实验组和对照组比较各项指标均无显著性差异;服药后,与对照组比较,实验组肌酸激酶(CK)活性和MDA水平显著下降,SOD活性和血清睾酮(T)显著增加,10m步行时间显著缩短(P0.05)。结论:服用玉米肽的实验组各项生化指标均优于对照组,提示玉米肽具有提高运动能力、促进疲劳恢复及能够清除自由基抑制过氧化损伤的功能。     

不同物理措施对烟粉虱和番茄TY病毒病的兼控研究

研究了防虫网、玉米屏障、温度等物理措施对烟粉虱和番茄TY病毒病的兼控效果。结果表明100目的防虫网效果最好,大棚内番茄黄化曲叶病毒病病株率为3.1%,防控效果达94.9%。在设置60目防虫网的前提下,在距棚1米处种植玉米能够有效的防止烟粉虱的入侵,防控效果为81.5%。当温度在20~30℃之间时番茄TY病毒病的发病率较高,当温度在30℃以上尤其是超过35℃时,已经发病的番茄植株会出现暂时的隐症现象。因此,同时采取多种物理措施并进行短时高温温棚能够有效的控制烟粉虱和番茄TY病毒病的危害。     

莠去津的潜在危害及其毒物学影响

莠去津是一个在世界上广泛使用的三嗪类除草剂,在过去使用的几十年中一直被认为是安全的。但研究证明,莠去津通过对水的污染而对人类和其他生物造成危害,主要表现在急性的毒性,慢性的毒性,对生殖系统的影响,产生畸形,诱导有机体突变,致癌以及对人的毒物学影响。     

清代贵州六盘水境内矿业兴衰原因

清代,因统治者经营边疆、开放矿禁及铸币所需,促进了贵州六盘水境内大规模的矿业开采,其发达程度为历代所不能比拟,矿业开发极大推动了该地区人口增长和社会发展,但因课税沉重,开采过度,成同战乱等原因,清末,六盘水境内矿业逐渐凋敝。     

特种兵军事训练体能消耗的营养现状及其需求研究

为了解特种部队官兵的膳食营养状况、为指导官兵科学膳食提供依据，对某部队两个连队共115名官兵军事训练过程中的体能消耗及其营养现状进行了调查和分析。结果表明：特种部队官兵军事训练过程中体能消耗大，膳食营养中存在着谷类摄入不足、粗粮品种单一、维生素及微量元素摄入不足以及三餐热能分配不合理等问题。     

基于时序光谱重构的卷积神经网络遥感农作物分类

当前,基于时序特征提取的农作物遥感分类方法需要较多先验知识及人工干预,难以自动化,且易因忽略部分有效特征而导致精度降低。针对这些问题,提出基于时序光谱重构的卷积神经网络农作物分类法。为充分利用时间序列多光谱中丰富的作物物候与多光谱信息,对每个地面像元构造以时间维为纵轴、光谱维为横轴的时序光谱图,采用Adam梯度下降法与Dropout 40%连接率优化后的卷积神经网络对时序光谱图进行分类。对比实验结果表明,该方法可有效减少“椒盐”噪声的产生,且地块边界轮廓线清晰,总体分类精度达到95.12%,高于时间序列多光谱+随机森林（88.58%）、时间序列NDVI+随机森林（90.25%）、时间序列NDVI+卷积神经网络（91.79%）等对照实验组;对于“异物同谱”现象明显的春玉米与番茄,该方法的F₁-score分别达到95.9%与89.9%,相比各对照组均有较大幅度的提高。该研究结果可为遥感农作物的自动化精细制图提供参考。     

秸秆焚烧对农田土壤甲螨群落结构的影响

本文是根据济宁农田土壤动物调查结果而完成的。秸秆焚烧使土壤甲螨的类群和数量均有不同程度的减少,对玉米样地的影响比对大豆样地更为明显;土壤甲螨的季节变化是非常明显的,与对照区相比,秸秆焚烧会使群落数量高峰期明显后延;秸秆焚烧使群落的多样性降低。     

长江上游典型区耕地的土地生产潜力——以四川省彭州市为例

在土地利用分区的基础上,把长江上游典型区———四川省彭州市的耕地土壤资源分为3类农业利用亚区 :平原亚区、丘陵台地亚区和山地深丘亚区,采用目前国内外应用最广泛的“农业生态区域法”估算该区水稻、小麦、玉米、甘薯和土豆 5种作物的光温潜在产量,并根据各区的土壤属性,计算了土地生产潜力,在此基础上提出了相应的对策和建议.