“大”字不同译

1上海是个大城市。 Shanghai is abig city.2中国是个美丽的大国。 China isa large and beautiful country.3昨夜下了一场大雨。 There was a heavy rain lastnight. / It rained hard last night.     

My First Day

This is my first day of the new term. In the morning, I help my new English teacher Miss Zou put some new English textbooks into a big box. And then I carry it to the classroom. The box is very heavy. I walk very slowly with the big heavy box in my arms. A boy runs very fast to me. He can't stop. Oh, dear! My box drops to the ground and the books are scattered (散落) everywhere. The boy says"I'm very sorry", and helps me pick up all the books. He then helps me carry the box full of the n…     

My First Day

This is my first day of the new term. In the morning, I help my new English teacher Miss Zou put some new English textbooks into a big box. And then I carry it to the classroom. The box is very heavy. I walk very slowly with the big heavy box in my arms. A boy runs very fast to me. He can‘t stop. Oh, dear! My box drops to the ground and the books are scattered (散落) everywhere. The boy says“I‘m very sorry“, and helps me pick up all the books. He then helps me carry the box full of the new books to our classr...     

科普英语试题精选

1.Your is betweenyour head and your trunk.A.belly B.neck C.leg2.Candies are sweet becausethere is a lot of inthem.A.fat B.salt C.sugar3.Bob is a heavy drinker.Hemay not like.A.soda B.wine C.beer4.In China,if someone needsfirst aid badly,we cancall for doctors.A.911B.120C.1195.Kate is afraid of big ani-mals.Maybe she thinksare not dangerous.A.beetles B.crocodilesC.dinosaurs6.Bats are.A.birds B.insectsC.mammals7.Clouds are madeof.A.natural gas B.tiny drops ofwater C.white dust8.During…     

My family

I have a happy fam_ly．Lookthis is my family photo．This is mydad．He often wears a pair Ofglasses（戴着一副眼镜I_This ismy mum．She is very pretty．Sheloves me very much．The little girlin a red blouse is me．I’m smiling（微笑）．I love my family．     

与狗无关的dog

小书虫瑞德问：“I have a nickname（昵称）．Do you have a nickname？”你们肯定会说：“Yes,I do．”世界上的很多国家和我们人一样。也有自己的昵称呢。瞧：     

水果大拼盘

猪八戒：What are those？ 孙悟空：Let me have a look．They’re watermelons．     

会动的蝴蝶(英文)

You need:One paste- board,a pair of scissors,colour pens,glue(一张厚纸、剪刀、彩笔、胶水) What to do: 1.Fold the pasteboard in half,draw a line and cut through it．Then draw a butterfly     

经典赞美2句

1．You look great today．你今天看上去很棒。2．You did a good job．你干得非常好。3．You’re looking sharp!你看上去真精神／真棒／真漂亮!     

中长跑运动员安静时的脑电地形图分析

章分析了11例中长跑运动员安静时的脑电功率谱，发现与正常人安静时的脑电功率谱基本一致，脑电功率谱左右对称性好。从前额到枕区，慢波逐渐减少．快波a节律增多．各脑区以a节律为主。目的在于从脑电的角度为体育教学和训练提供理论依据。     

紫外可见分光光度法在渔业环境监测中的应用分析

紫外可见分光光度法在渔业环境监测中可测定营养盐、硫化物、氰化物、油类、叶绿素a、重金属等多个指标．在渔业环境监测工作中发挥着重要的作用．     

你会使用祈使句吗？

同学们，表示命令或请求的句子叫做祈使句。如：Stand in a line．／Let’s do some exercise．／Lie on your back．像这样的祈使句的主语为you，但是通常都省略，谓语动词用原形。祈使句通常都用降调朗读。常见的祈使句有以下几种形式。     

对“五步式、四注重”教法的探索

①创设情境，激发兴趣。a．展示“铜树”(把弯曲铁丝浸入硫酸铜溶液形成)、“银树”(把铜丝浸入硝酸银溶液形成)；b．“清水”变“牛奶”(使硝酸银溶液与食盐水混合)。     

用对this、that和it

a．this意思为“这;这个”,指较近的人或物;that意思为“那;那个”,指较远的人或物。     

长白山地区蒙古栎光合特性

基于单叶尺度上的光强－光合响应以及CO2－光合响应测定,对长白山地区蒙古栎成树和幼树的光合特性分别进行了研究．结果表明,蒙古栎成树的光补偿点（Lcp）为21μmol/m2/s,光饱和点（Lsp）为1564μmol/m2/s,表观量子效率（a）为0.045μmol/mol;幼树的Lcp、Lsp、a以及CO2补偿点、饱和点分别为29μmol/m2/s、1581μmol/m2/s、0.049μmol/mol、73μmol/mol、625μmol/mol．幼树和成树具有相似的光响应特征,但前者的光合同化能力要高于后者．蒙古栎具有典型的喜光性,但对高光的利用效率要低于弱光．     

二维离散系统的分析与超混沌控制

首先利用理论分析了一个二维离散超混沌系统的不动点的稳定性,以此得到系统发生Neimark-Sacker分岔时参数a的近似值．数值模拟得到系统随0变化的分岔图．李雅普诺夫指数以及超混沌吸引子．并给出了系统的分形边界,最后将混沌控制方法中的小波函数构成的非线性映射压缩法应用于本系统的超混沌控制,得到了很好的控制结果．     

等离子喷涂NiCr涂层的耐强酸腐蚀性能研究

采用等离子喷涂技术在Q235基体表面制备NiCr涂层,并用E-44型环氧树脂与低分子650#聚酰胺1：1配比进行封孔,通过在三种典型强酸环境中的全浸泡试验,对涂层的耐蚀性进行了评价．结果表明,在65％的硝酸和98％的硫酸溶液中浸泡500h后,NiCr涂层表面平整,采用SEM观察微观形貌,涂层较致密,有少量的腐蚀坑,腐蚀速率为0．05—0．5mm／a,处于第二等级,耐蚀性良好;NiCr涂层在36％的盐酸溶液中浸泡500h后,由于活性离子Cl^-的影响,部分涂层呈层片状脱落,采用SEM观察微观形貌,腐蚀坑数目比较多,腐蚀速率为1．21mm／a,处于第三等级,耐蚀性较差．     

正面扣球易犯的错误动作及纠正方法

扣球是排球的基本技术之一，是比赛中最积极、最有效的进攻手段。正面扣球是比赛中运用最多的一项进攻技术．也是普修课教学卜的一个重要教材，而且扣球是一项较复杂的技术，要想提高扣球技术的教学质量，首先要及时发现存在的错误动作，对错误动作产生的原因加以分析并通过有效的手段和措施及时加以纠正，从而提高扣球的教学质量。亚正面扣球易犯的错误及纠正方法（1）上步起跳时间过早或过晚a．以口令信号或触动队员身体，使学生体会跑动上步的时间。b.强调当球升到最高点时止步起动。（2）助跑起跳前冲a．进一步讲解助跑起跳的技术动作要…     

My Day

Hello,everyone!My name is Cindy.I often get up at six thirty.I have breakfast at seven ten.I usually eat porridge.I like it very much.I go to school at seven thirty.The traffic is often very heavy at that time.I have three lessons in the morning,they’re Chinese,Maths and English.I love all of them.Oh,it’s eleven fifteen.It’s time for lunch.I have three lessons in the afternoon     

by＋交通工具

听,一对酷爱旅行的好朋友——Teddy和Kitty,正在商量怎么去北京旅行呢!Teddy：Kitty,let’s go to Beijing．Kitty：Great!But how do we go there？Teddy：By bus？Kitty：Oh,no!By plane!We can get there faster（更快）．Teddy：That’s a good idea!亲爱的小朋友们,在Teddy和Kitty的对话中有这样两个短语：1．bybus乘公共汽车;2．by plane乘飞机。