问题 填空题

人们常说“十月怀胎”,胎儿在母体______内发育的______周时间里,所需的养料和氧气是通过______从母体获得的.因此,我们每一个人都应铭记母亲的恩情,尊重和孝敬母亲.

答案

精子与卵细胞在输卵管处相遇,融合成受精卵;受精卵进行分裂、分化发育成胚泡;胚泡移动到子宫中植入子宫内膜,这是怀孕;胚泡逐渐发育成胚胎,通过胎盘、脐带从母体获得所需要的营养物质和氧气,胎儿产生的二氧化碳等废物,也是通过胎盘经母体排出体外的,怀孕到40周左右,胎儿发育成熟,成熟的胎儿和胎盘一起从母体的 * * 排出.如图:

故答案为:子宫;40;胎盘和脐带

阅读理解

December 25 is Christmas Day(圣诞节). Christmas is an important holiday in many countries. On Christmas Day, most families get together for a big dinner. They give presents to each other and visit friends. The Christmas tree is an important part of the Christmas holiday. Most families buy trees. The families decorate(装饰) the tree together. Parents usually tell their children that Father Christmas comes during the night and brings presents to good children. Of course, Father Christmas isn’t real. The parents of the children are really “Father Christmas”. They put the presents under the tree or into their children’s stocking(长统袜) after the children go to sleep.

小题1:What do most families in America do on Christmas Day? __________.

A.They only have a big dinner together

B.They have a big dinner, exchange (交换) presents and visit friends

C.They just visit friends and exchange presents

D.They exchange presents only小题2:Who is really “Father Christmas”? ___________.

A.Their parents

B.Their father

C.Their mother

D.Father Christmas小题3:When Christmas Day is coming, the parents __________.

A.usually tell their children that Father Christmas isn’t real

B.tell their children that Father Christmas comes during the night and brings presents to good children

C.sometimes tell their children that Father Christmas comes during the day

D.often tell their children that Father Christmas gives presents to poor children小题4:When did parents put the presents into their children’s stocking? __________.

A.Before the children go to sleep

B.After the children go to sleep

C.December 26

D.At midnight of December 25

单项选择题