土壤农业水文、物理特性要求（）年测定一次。 A.5—7 B.5—8 C.5—9 D.

读“北半球某地海平面等压线图”，完成下列要求。（22分）

（1）影响A处的天气系统是                ，在该系统的控制下，A处天气特点是             ，影响B处的天气系统是                 ，在该系统的控制下，B处天气特点是                                。

（2）图中C、D两处中，    处即将发生明显的天气变化，原因是该处将受到                          ___________（天气系统）的影响，届时该地将出现             天气，当此天气系统过境后，天气变化是                                   。

（3）目前图中C处受              气团控制，D处受                气团控制。

（4）图中G处风向为                  。

观察“绿叶在光下制造淀粉”实验操作环节示意图，回答下列问题：

（1）结合你在此实验中的操作过程，将图中操作环节正确排序______．

（2）将叶片部分遮光的目的是为了与不遮光部分进行______．

（3）叶片脱色后再向叶片上滴加碘酒，为检验叶片中是否产生______．

（4）绿叶在光下能制造有机物的实验证明了______．

A．光合作用需要光才能进行，光合作用释放氧气

B．光合作用条件之一是光照，制造的产物是淀粉

C．光合作用的产物是淀粉和氧气

D．光合作用在有光和无光的条件下都能进行

（5）在我们的实验室里，利用这盆植物不适合完成下列哪项实验______．

A．观察叶片结构B．探究二氧化碳是光合作用的原料

C．探究光合作用产生氧气 D．探究叶片正面和背面的气孔数目．

简析蒋光慈“革命文学”创作的成就、意义和缺失

During the summer holidays there will be a revised schedule of services for the students. Changes for dining-room and library service hours and for bus schedules will be posted on the wall outside of the dining-hall. Weekly film and concert schedules, which are being arranged, will be posted each Wednesday outside of the student club.

In the summer holidays, buses going to the town center will leave the main hall every hour on the half hour during the day. The dining-room will serve three meals a day from 7:00 am to 7:00 pm during the week and two meals from noon to 7:00 pm on weekends. The library will continue its usual hours during the week, but have shorter hours on Saturdays and Sundays. The weekend hours are from noon to 5:00 pm.

All students who want to use the library borrowing services must have a new summer card. This announcement will also appear in the next week’s student newspaper.

小题1:The main purpose of this announcement is to ________.

A．tell students of important schedule changes

B．show the excellent services for students

C．tell students of new bus and library services

D．ask students to renew their library cards小题2:At which of the following times will the bus leave the main hall?

A．8:00, 9:00, 10:00, 11:00

B．8:30, 9:30, 10:30, 11:30

C．8:30, 9:00, 9:30, 10:00

D．8:00, 9:30, 11:00, 12:30小题3:Times for films and concerts are not listed in this announcement because ________.

A．they are not to be announced

B．the full list is not ready

C．they are hard to arrange

D．the full list is too long小题4: In the summer holidays, the library will have __________.

A．no special hours

B．special hours on weekdays

C．special hours on weekends

D．special hours both on weekdays and weekends小题5:We may infer that during the summer holidays ________.

A．The library will continue its usual hours on weekdays

B．students will stay in the university

C．there will be a concert or film once a week

D．no breakfast will be served on weekends

( )是公安机关的根本建设，是一项长期的、具有战略意义的大事。

A．公安业务建设
B．公安文化建设
C．公安队伍建设
D．公安装备建设