问题 选择题

读黄河干支流部分河段水质状况分布图,判断1—3题。

1、有关①、②两河段水质状况及成因分析正确的是[ ]

A、①河段水质较好,因为该河段流域内工业布局较少

B、①河段水质较差,主要由于该河段上游支流植被覆盖差,水土流失严重

C、②河段水质较好,因为该河段支流多,河流净化能力强

D、②河段水质较差,因为该河段工业污染大

2、从③河段到②河段,黄河干流[ ]

A、平均流量明显加大

B、地势逐渐降低

C、含沙量显著增大

D、结冰期逐渐变短

3、最适宜对乙地主要环境问题进行直接监测的现代地理信息技术是 [ ]

A、地理信息系统

B、数字地球

C、遥感技术

D、全球定位技术

答案

1、D

2、B

3、C

单项选择题
阅读理解

阅读下面短文,用英语简要回答文后所给的5个问题。(注意:每题答案不超过15个单词)

    When I was a little girl, my grandparents lived in a house with a big front yard. They loved each other

and planted lots of vegetables and flowers together in the yard.

     But one summer Grandpa died, so it was hard for Grandma to care for the garden alone. When spring

came, she planted just a few vegetables and flowers.

     One day in the early summer, Grandma heard big noises in the yard. She looked out of the window and

saw thousands of bees.

     What could she do? Should she hire someone to get rid of the bees? But that would cost more than she

could afford. She decided to wait.

     Over the next few days, the bees were busy with their own business. That summer, Grandma's little

garden grew and grew. The neighbors would stop to admire the big crop of vegetables and the lovely

flowers.

     One day, Grandma's brother visited. When she told him about the bees, he said, "Farmers often hire

beekeepers to come to their fields. The bees pollinate (授粉) the crops, which helps them to grow."

     "So that's why my garden is doing so well!" She believed Grandpa had sent the bees to take his place and

make Grandma's little garden grow and grow...

1. What did the writer's grandparents plant in the yard? 

    ___________________________________________________________________________

2. What caused the big noises in the yard one day? 

    ___________________________________________________________________________

3. Why didn't Grandma get rid of the bees? 

    ___________________________________________________________________________

4. How did the bees help Grandma?

    ___________________________________________________________________________

5. Why did Grandma believe her husband had sent the bees to take his place? 

    ___________________________________________________________________________