圆的 查看更多

 

题目列表(包括答案和解析)

黄色圆粒豌豆与绿色圆粒豌豆进行杂交,对其子代表现型按每对相对性状进行分析和统计,结果如下图所示:(黄、绿用Y、y表示,圆、皱用R、r表示)

(1)每对相对性状的遗传符合        定律。
(2)亲本的基因型:黄圆是_______,绿圆是             
(3)杂交后代中非亲本类型性状组合占    ,其中双隐性个体占    
(4)杂交后代中能稳定遗传的数量占总数的_________。

查看答案和解析>>

在你的成长过程中,家人(父母、祖父母等)倾注了大量的心血。他们对你的生活和学习除了给予关心、帮助外,也会提出一些建议。

请根据上面圆框中的内容,选择一点或几点写一篇短文,向你的好友谈谈你的家人给予你的关心、帮助或建议以及你的想法。

要求:1.词数80左右。

2.条理清楚,语意连贯,句式规范,字迹工整。

3.文中不得出现真实的人名、校名等相关信息。

参考词汇:be strict with sb.对某人严格要求;allow sb.to do sth.允许某人干某事

查看答案和解析>>

今晚的月亮看起来更亮更圆。

The moon tonight looks ________and ________.

查看答案和解析>>

Once a circle(圆圈) lost a piece. The circle wanted to be whole, so he went around     36    for the missing piece.
Because he was incomplete(不完整的), he rolled very      37    . He saw the beautiful flowers along the road, talked with the      38     and enjoyed the sunshine on his way. He found       39   different pieces, but     40    of them fit him. So he left them all by the side of the road and   41    searching(搜索).
One day      42     circle found the right piece. It fit him perfectly. He      43     be whole, with nothing missing. He was so happy. He could roll very fast,     44     fast to notice the flowers and talk to the birds.    45    he found how different the world seemed as he rolled so quickly, he stopped. He    46  the found piece by the side of the road and rolled slowly away.
A person who has everything is     47     in some ways. He will     48     have hopes and dreams. We can’t be perfect, but we can be kind enough to share happiness with others     49     smart enough to know there is enough      50    around us to live a wonderful life.
【小题1】
A.lookingB.lookedC.lookD.have looked
【小题2】
A.quicklyB.quickC.slowlyD.slow
【小题3】
A.piecesB.birdsC.flowersD.circles
【小题4】
A.lots ofB.a lotC.fewD.a little
【小题5】
A.allB.someC.noneD.neither
【小题6】
A.stoppedB.enjoyedC.finishedD.kept on
【小题7】
A.theB./C.aD.an
【小题8】
A.canB.couldC.mustD.needed
【小题9】
A.soB.veryC.quiteD.too
【小题10】
A.WhenB.WhileC.WhatD.How
【小题11】
A.forgotB.savedC.rememberedD.left
【小题12】
A.richB.poorC.luckyD.happy
【小题13】
A.alwaysB.neverC.sometimesD.often
【小题14】
A.andB.butC.orD.so
【小题15】
A.sadnessB.angerC.loveD.mood

查看答案和解析>>

Once a circle(圆圈) lost a piece. The circle wanted to be whole, so he went around     36    for the missing piece.
Because he was incomplete(不完整的), he rolled very      37    . He saw the beautiful flowers along the road, talked with the      38     and enjoyed the sunshine on his way. He found       39   different pieces, but     40    of them fit him. So he left them all by the side of the road and   41    searching(搜索).
One day      42     circle found the right piece. It fit him perfectly. He      43     be whole, with nothing missing. He was so happy. He could roll very fast,     44     fast to notice the flowers and talk to the birds.    45    he found how different the world seemed as he rolled so quickly, he stopped. He    46  the found piece by the side of the road and rolled slowly away.
A person who has everything is     47     in some ways. He will     48     have hopes and dreams. We can’t be perfect, but we can be kind enough to share happiness with others     49     smart enough to know there is enough      50    around us to live a wonderful life.
【小题1】
A.lookingB.lookedC.lookD.have looked
【小题2】
A.quicklyB.quickC.slowlyD.slow
【小题3】
A.piecesB.birdsC.flowersD.circles
【小题4】
A.lots ofB.a lotC.fewD.a little
【小题5】
A.allB.someC.noneD.neither
【小题6】
A.stoppedB.enjoyedC.finishedD.kept on
【小题7】
A.theB./C.aD.an
【小题8】
A.canB.couldC.mustD.needed
【小题9】
A.soB.veryC.quiteD.too
【小题10】
A.WhenB.WhileC.WhatD.How
【小题11】
A.forgotB.savedC.rememberedD.left
【小题12】
A.richB.poorC.luckyD.happy
【小题13】
A.alwaysB.neverC.sometimesD.often
【小题14】
A.andB.butC.orD.so
【小题15】
A.sadnessB.angerC.loveD.mood

查看答案和解析>>


同步练习册答案