问题 选择题

小琴同学假日在植物园中游玩,非常喜欢下列植物,想将这些植物的种子带回家去种植,她不可能得到种子的是(  )

A.

苹果

B.

松树

C.

银杏

D.

卷柏

答案

种子植物都能产生种子,用种子繁殖后代,受精过程不需要水.种子植物可分为裸子植物和被子植物.藻类植物、苔藓植物、蕨类植物都不产生种子,靠孢子繁殖后代,属于孢子植物.题中的苹果、松树和银杏都结种子,用种子繁殖后代.而卷柏则属于蕨类植物,不结种子,产生孢子,用孢子繁殖后代.因此她不可能要到卷柏的种子.

故选:D

完形填空
Joe wanted a computer. He asked his 小题1:  for the money and they said he must get it himself. But how did he get it? He  小题2: about this when he walked home. Not many people wanted to ask children to work for them. Maybe he could take away snow for the neighbours. But this was not 小题3: . He had to wait a long time for that. He couldn't cut grass for their gardens  小题4:he had no tools to do the work with.
Then he saw one of his classmates, Dick, delivering  小题5: . I could do that, he thought. Maybe I could  小题6:  get the computer right away I could pay  小题7: it a little each week. He ran to Dick. Joe  小题8: him a lot of questions. He learned that it was 小题9:to get twenty-five dollars each week. He learned that the job took  小题10: three hours  each night. Dick 小题11: him the phone number of the newspaper manager
Joe almost flew home. After he had told his mother  小题12: he thought, she  小题13: . "I think it
is a  小题14: idea, " she said, "I'll call the newspaper...."
"What, Mum," Joe said, "I'll call." After that, I'm going to be a businessman now.
Joe's mother smiled  小题15: .
小题16:
A.teachers B.parentsC.classmatesD.friends
小题17:
A.saidB.toldC.thoughtD.spoke
小题18:
A.springB.summerC.autumnD.winter
小题19:
A.becauseB.whenC.whileD.after
小题20:
A.newspapersB.bikesC.computersD.cars
小题21:A still         B. even          C. yet               D. never
小题22:
A.onB.toC.ofD.for
小题23:
A.answeredB.askedC.wroteD.read
小题24:
A.friendlyB.kindC.possibleD.wrong
小题25:
A.atB.aboutC.beforeD.after
小题26:
A.taughtB.gaveC.madeD.asked
小题27:
A.thatB.whenC.whatD.where
小题28:
A.smiledB.shoutedC.criedD.worried
小题29:
A.bigB.largeC.greatD.bad
小题30:
A.sadlyB.happilyC.politelyD.angrily
单项选择题