共查询到20条相似文献,搜索用时 46 毫秒
1.
The planet we live on is called earth. It is special ( 特别的) in the universe(宇宙) because it has life on it. It moves around the sun so we call it a planet(行星).Our home planet is a rocky one (石质行星).Our rocky planet has water.Water covers about 70% of its surface(表面).That's why the Earth looks blue from space. 相似文献
2.
《英语大王(小学)》2013,(12):24-25
In Indonesia(印尼), a tree frog is holding(抱着)a leaf. Why does it do this?Oh, it's raining. It is sheltering(躲避) from the rain! 相似文献
3.
赵超樱 《上海大学学报(英文版)》2007,11(2):195-196
Parametric down-conversion is a useful method to obtain non-classical state in quantum optics.
(1) An analytical solution to the Fokker-Planck equation of non-degenerate optical parametric amplification (NOPA) for generation of squeezed light is presented. The maximum intra-cavity compression of squeezed light derived from the analytical solution is 1/16 (vacuum fluctuations 1/4). To compare it with the previous 1/8 of degenerate optical parametric amplification (DOPA), it seems that squeezing for NOPA is superior to DOPA. 相似文献
4.
《英语大王(小学)》2014,(10):23-23
Look, the squirrel is putting its head into the lens (镜头) of a camera. Is it looking for anything? What is it thinking? 相似文献
5.
王烨烜 《英语大王(小学)》2014,(1):43-45
it is a fine day today. I go to Switzerland (瑞士) with my family. Switzerland is a beautiful counby in Europe (欧洲). Look, the sky is so blue. The trees and grass are so green. 相似文献
6.
The Spring Festival(the Lunar New Year)is one of the most traditional(传统的)Chinese folk(民间的)festivals.Do you know the history of it?Do you know how the Chinese people celebrate(庆祝的)it?Do you know the English expressions(英语表达)about it? 相似文献
7.
朱天桦 《英语大王(小学)》2014,(9):25-25
The worm (蠕虫) is very hungry now. It sees a big apple and wants to eat it. But it must go through (穿过) the apple maze to get the apple. Can you help the worm? 相似文献
8.
1. Hello,boys and girls. I'm Ms. Sha. I'm so happy to be your teacher today. First,let' s talk about something ! What's the weather like today? What day is it today? (课件出示三月份日历 )What day is it tomorrow? What day is it? 相似文献
9.
《英语大王(小学)》2014,(4):F0002-F0002,1
The Goose Beauty Contest
Huhgary (匈牙利)
There is a goose beauty contest(选美比赛)
in Hungary. Is it funny?. Look, the man is showing his goose! 相似文献
10.
姜丽 《英语大王(小学)》2014,(9):26-27
The bike is still locked, but the boy can carry it about 800 meters away. It's so strange(奇怪的). How does the boy do it? Now let me give you some tips (提示). 相似文献
11.
詹秀萍 《中学英语园地(高三版)》2008,(11):11-11
A bag is useful and the word "bag" is useful, too. It reminds us of an interesting phrase(短语), i.e. "to let the cat out of the bag". In meaning it is the same as "to tell the secret". And there is an old interesting story about it. 相似文献
12.
考题示例:1.( )the Internet is of greathelp, I don't think it's a good idea to spendtoo much time on it.(2008湖南卷)A. If ;B. While;C. Because; D. As 相似文献
13.
Gas chromatography (GC) analysis of sulfer dioxide is challenging because SO2 is a highly mobile and chemically active molecule. For the conventional GC method with flame photometric detector (FPD) and direct-injection, it is often ineffective particularly when the SO2 level is as low as on the trace level. In this paper, a modified GC system integrated with an adsorption-desorption device was developed to detect the trace SO2 impurity in H2 fuel. Adsorbent GDX-502 is used in the adsorber to adsorb/collect SO2 from the sample gas and desorb/release it in a concentrated flow so that the conventional GC at downstream could detect it with an acceptable accuracy. 相似文献
14.
朱天桦 《英语大王(小学)》2014,(1):57-57
Do you like spaghetti (意大利面)? Eating spaghetti can be fun, when you pick(挑选) the right one! Which one is it?. Is it A, B, C, D or E? 相似文献
15.
In this paper, it is proved that the radial pth mean body RpK(p 〉 0) is homothetic to the difference body DK when K is a simplex, Furthermore, the equality Rp(Rq) = Rq(Rp) is established when p 〉 0 and q 〉 0. It is also proved the Brunn-Minkowski inequality of radial pth mean body of simplex and uniqueness property. 相似文献
16.
苏文 《语数外学习(初中版)》2007,(9Z):58-58
People often say, "Time is money. "But I think time is even more important than money. Maybe someone will ask me why. The reason is when money is spent out, we can earn it back. However, when time is spent away, it' II never return. One's life is limited, so we mustn't waste(浪费)time.[第一段] 相似文献
17.
丁佳盈 《英语大王(小学)》2014,(4):34-34
There is a cat in my family. Its name is Xiaobai.
Xiaobai is polite(礼貌的).When I go to school,it will say goodbye to me with "Meow, meow". 相似文献
Xiaobai is polite(礼貌的).When I go to school,it will say goodbye to me with "Meow, meow". 相似文献
18.
《双语学习》2009,(5):27-27
This is the moon, There is no air (空气) or water on the moon. Supergirl and Superdog are very brave(勇敢). They are flying their spaceship, Now they are on the moon. What are these? They're rocks. What are those? They're mountains, Look! What's that? Oh, it's a restaurant. It isn't big. A robot is in it. He is a shop-assistant. Supergirl and Superdog want two moonburgers. Supergirl likes the moon. Superdog likes moonburgers. 相似文献
19.
郑羽丫 《英语大王(小学)》2014,(3):11-13
Hello, my name is Zheng Yuya. I like drawing and craft(手工) very much. Look, Imade a beaufiful magic sfick(棒). Do you like it?. 相似文献