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27.   Bungee jumping is an adventurous sport, popular with young adults, ______courage matters more than strength.

A. whose        B. that     C.   of which    D. where

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26.   -Can I pay the bill by check?

-Sorry, sir. But it is the management rules of our hotel that payment   be made in cash.

A. shall         B. need      C. will          D. can

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25.   Mom promised to buy me a nice gift for my birthday,     beyond my imagination.

A. the one       B. that       C. which     D. something

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24.       in a famous university is what most students wish for.

A. To educate     B. Educated      C. Being educated D. Educating

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23.   I wonder what it feels like to be one of _____ really rich. The Browns already have two Rolls-Royces and now they are buying ______ third.

A. the ; a        B. 不填;a      C. the; the        D. 不填;the

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22.   -“Neal, listen,” she said, looking straight at him. “I ask you not to get_____ in this kind of matter.”

-“It’s none of your business.”

A. caught        B. attached       C. involved       D. connected

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第一节 单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

21.  After staying in hospital for long, the patient was advised to go to the seaside to _____ his health.

A. take on        B. pick up        C. carry on       D. make up

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54.(12分)下面的方法可用来测定田间棉花植株的光合作用强度。

   ①在田间选定有代表性的叶片(叶片左右对称)20片,挂小纸牌编号。②用5%的三氯乙酸点涂叶柄一圈,将叶柄的筛管细胞杀死,并采取措施尽量保持叶片的自然生长角度。③按编号顺序分别剪下叶片对称的一半,依次夹入湿润的纱布中,贮于暗处;4小时后,再按编号顺序以同样的速度剪下另外半片叶,也依次夹于湿润的纱布中。④返回实验室后将各同号叶片的两半对应叠在一起,在无粗叶脉处用刀片沿边切下一定面积的两个叶块,分别置于两个称量皿中,80-90℃下烘干5小时,然后在分析天平上称重、记录数据、进行比较。

   两部分叶片干重差的总和除以叶面积及照光时数,即为光合强度:

光合强度:干重增加总数÷(切取叶面积总和×照光时数)。

(1)在该实验中,特定时间段内的光合产量=________________________________________。

(2)用三氯乙酸杀死叶柄筛管细胞的目的是________________________________________。

(3)实验步骤中,有一些措施是为了减少实验误差而设置的,请你列举两例。

①___________________________________;②____________________________________。

(4)衡量光合作用强度的指标,除了本实验所用的干物质重外,还可以用

______________________________或______________________________________。

  

合肥一六八中学复读年级第二次段考

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