问题 选择题

生物的探究活动的步骤有:

①得出结论;②作出假设;③提出问题;④实施计划;⑤制定计划;⑥表达和交流.

正确的顺序是(  )

A.①②③④⑤⑥

B.⑥⑤④③②①

C.③②④⑤①⑥

D.③②⑤④①⑥

答案

科学探究的一般过程是从发现问题、提出问题开始的,发现问题后,根据自己已有的知识和生活经验对问题的答案作出假设.设计探究的方案,包括选择材料、设计方法步骤等.按照探究方案进行探究,得到结果,再分析所得的结果与假设是否相符,从而得出结论.并不是所有的问题都一次探究得到正确的结论.有时,由于探究的方法不够完善,也可能得出错误的结论.因此,在得出结论后,还需要对整个探究过程进行反思.即③提出问题、②作出假设、⑤制定计划、④实施计划、①得出结论、⑥表达和交流.
故选:D

阅读理解

The nervous-looking young man had waited for a few moments—outside the jeweler’s before he got enough courage to enter. He was warmly greeted by a young assistant. James felt a rush of blood to his face as he explained he would be bringing in his future wife to choose a birthday present. The assistant listened carefully and told him he’d better buy a necklace. He wasn’t used to buying jewellery and was a little worried about over-spending. After some discussion as to a reasonable price and the type, the assistant showed him dozens of necklaces and helped him to choose. At last James chose one and left the shop promising to return at five o’clock. When, half an hour later than planned, James did return to the shop with his future wife, Laura, the assistant acted as if she had never seen him before. When she was asked to show them some necklaces, she first brought out some inexpensive ones for them to choose, and then gave them the one she had prepared. A choice was soon made and they went away satisfied. James would certainly come back to buy what he wanted.

52. A good title for this passage is________.

A. A Clever Assistant                 B. Buying a Birthday Present

C. How to Choose a Necklace          D. A Brave Young Man

53.The word “overspending” in this passage means__________.

A. spending too much money

B. spending too much time

C. spending more time than he planned

D. spending too much time and too much money

54. When James told the assistant why he wanted to buy a present, his face_______.

A. turned pale                   B. turned  red       C. turned yellow                 D. turned black

55. James and Laura reached the shop at        .

A. 4:30       B.5:00         C.5:30         D.6:00

56. James would come back to buy what he wanted because_______.

A. the assistant knew how to satisfy the people who came to buy things

B. the necklace was good

C. Laura liked the necklace

D. the assistant who served James was very beautiful

问答题 简答题