问题 填空题

用since 和for 填空。

1. The German teacher has worked in China _____ quite a few years.

2. Dick has worked as a taxi driver _____ about ten years.

3. Helen has worked as a shop assistant _____ 1992.

4. We have studied English _____ about five years.

5. They have studied French _____ 1990.

6. Hans has made a lot of friends _____ he came to China.

7. _____ last January, the city has developed its telephone services swiftly.

8. I have been a Youth League Member  (青年团员) _____ two years.

答案

1. for 2. for 3. since  4. for  5. since  6. since  7. Since  8. for

填空题
综合

读下图,完成下列问题。

(1)画出北半球夏至日太阳照射地球示意图,并用阴影表示黑夜。

(2)画出黄赤交角(用θ表示),并注明度数。

(3)这一天A地正午太阳高度是_______,南极圈上的正午太阳高度是______。北极圈上昼长时间为____

         _______小时。南极圈上昼长时间为____________小时,赤道上昼长时间为_____________小时。

(4)当太阳直射点自赤道向北移动到A点所在纬线,南半球昼夜长短的变化规律是_________________

         ____________________________________________________________________________________。

(5)为了研究黄赤交角对地球自然环境的影响,假设黄赤交角变为0,这时,在地球上将可能会出现

         的自然现象有(多项选择)

                                                                                                                                                        [ ]

         A、太阳终年直射赤道

         B、各地全年都昼夜平分

         C、各地气温都无日变化

         D、各地都无四季变化 

         E、无大气环流现象

         F、自然地理环境无区域差异

(6)假设黄赤交角变为35,这时,北半球夏至日正午太阳高度将自_______________(纬度)纬线向

         南、北递减;在地球上五带的划分中,与现在相比,范围将扩大的是______________。