数菜籽
11月9日 晴
今天科学课,李老师走进教室就问了我们两个问题:
“你们猜一猜,每棵油菜上大约有多少个菜荚?每个菜荚里有多少颗菜籽?”
老师的话刚说完,大家就七嘴八舌地回答起来:“21个菜荚,20颗菜籽。”
“50个菜荚,16颗菜籽。”
“100多个菜荚,30几颗菜籽。”……
李老师神秘地笑了笑,说:“我们还是到田里去解决这个问题吧!”
我们来到田边,一看,二十多天前,这里还是一片金黄,现在每一棵油菜的枝条上结满了一个个饱满的菜荚了,看起来有点沉。仔细观察菜荚,只见一颗颗种子胀满了它的“外衣”,圆鼓鼓的凸了出来,顶端尖尖的;剥去“外衣”――菜荚,里面的种子圆溜溜的,像一颗颗小珍珠晶莹发亮,十分好看。
我和仇琦两人一组合作数,我们两个两个地数,很快就数完了三株油菜。当我数到最后一棵的时候,大吃一惊,这株足足有400多个菜荚,它们密密麻麻地挂在茎上伸出的枝条上。我还从上面采来了一个菜荚,剥开数了数有27颗菜籽。
??刘 召
Today, science classes, the teacher asked us to walk into a classroom on two issues : "You guess.Rape about the number of dishes for each pod? how many there are in each pod vegetables rapeseed? "the teacher said just now.We will go on to answer : "21 dishes dioxin, 20 were rapeseed. "" Vanilla 50 dishes.Rapeseed 16 satellites. "" Vanilla more than 100 dishes, a few of rapeseed 30. ": : The teacher smiled mysteriously and said :"We have to solve this problem or to the fields!" We have come to the edge, a look at two days ago,here was still golden, every tree branches rape of a month full of dishes full unity of the pod looks a bit Shen.Careful observation pod vegetables, I saw so many seeds of its legs "while" a convex circular swelling, and the sharp tip;Has the "cloak" of dioxin -- vegetables, seeds inside the circle Liuliu, like so many small shiny glistening pearls, very pretty.Theirs was a combination of me and a few Qiuqi, two at several quickly finished several lengthy rape.When I find that the tree came over 400 pages of this strain of dioxin in food,They're helping to hang on branches stems.I have to adopt a vegetable dioxin from above, catching 27 rapeseed augmented.
印度尼西亚:地震遇难人数超过800,还会上升
国际英语资讯:At least 17 killed due to heavy rains in Nicaragua
假期出游注意,这八个景点对游客说“不”
Should we be Mortgage Slave? 房奴,应不应该?
国际英语资讯:Newly-elected Iraqi president tasks Adel Abdul-Mahdi to form next govt
国际英语资讯:Tunisia, France sign cooperation deals worth 56 mln USD
国际英语资讯:Serbia strives for EU-integrated, stable Western Balkans: PM
当你决定做生活的主角,你就赢了
娱乐英语资讯:Chinas popular theatrical artist to entertain U.S. audience with classical contemporary Ch
国际英语资讯:1 NATO soldier killed, 2 injured after Afghan soldiers shooting
Justin bieber承认结婚!还称海莉是小天使!
Learn Something from Each Course 从每节课中学习
国际英语资讯:Six anti-drug agents killed in ambush in southern Philippines
Are you happy? 你快乐吗?
Helicopter Parents vs. Free-range Kids 直升机似的父母还是自由的孩子?
脱欧谈判艰难,英首相呼吁党内团结
美第一夫人非洲之行首站加纳
国内英语资讯:CPC members asked to learn from four late comrades
马来西亚前第一夫人面临洗钱指控
多么痛的领悟:自己做饭和四六级裸考一样危险
Respecting the Elderly Is a Traditional Chinese Virtue 尊老是中华民族传统美德
美国失业率降至近50年来最低
国际英语资讯:Morocco approves deals to strengthen cooperation with Dominican Republic, Burkina Faso
国际英语资讯:UK, EU agree on 95 pct of Brexit deal: May
国际英语资讯:Morocco hosts symposium to tackle security challenges in Africa
The Song of Seasons 四季颂歌
娱乐英语资讯:Chinese women composers to hold concert in New York marking Chinas National Day
美国参议院或在本周六就大法官人选投票
On Holiday Travel 假期旅游
中国正兴起咖啡热,互联网咖啡成新宠?
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |