小华发现萝卜埋在地下的部分是白色的,露出地面的部分却发绿。经仔细观察,他又发现大

题型:探究题

问题:

小华发现萝卜埋在地下的部分是白色的,露出地面的部分却发绿。经仔细观察,他又发现大葱、蒜苗和韭菜也是这样。这是为什么呢?小华猜想叶绿素的形成可能与光有关。于是,他想用家里的蒜瓣设计一个小实验来证明自己的猜想。(7分)

(1)针对小华的疑问,应该提出的假设是                             

(2)小华将一些蒜瓣分别泡在甲、乙两个装有水的瓷盘中,两盘中蒜瓣的数量应           。然后把甲盘放在阳光下,乙盘放在完全密封的纸箱中,其他条件                      

(3)根据假设可以预测:甲盘中长出的蒜苗叶是      色的,而乙盘中长出的是               色的。

(4)在这个设计中,实验变量是                        

(5)根据预测结果,结论应是                                        

考点:探究实验:绿叶在光下制造有机物光合作用
题型:探究题

阅读理解

       At 7 :40 when Mrs. Fang is at breakfast,there comes a call. Twenty minutes later,she is with Ann,

because she cannot stop her baby from crying. There,Mrs. Fang helps wash Ann's three-day-old baby and it calms down(平静下来) . It is her first child and she is learning what to do.After that,Mrs. Fang goes on

to see Mr. Johnson,a rich old man who lives alone. His arm was broken and cannot wash or put on his

clothes himself. He must be looked after every day.

      Then Mrs. Fang gets her second call that day. She goes to the home for the old. There she works with the old people till 2:00 pm. One by one,she answers their questions and helps them take their medicine,

while the doctor takes care of other more serious problems.

      Mrs. Fang keeps hurrying around all day and sometimes she can be rung up even late at night when

the sick must be helped. She is busy,but she likes her job and enjoys helping others.

1. Is Mrs. Fang's first call from Ann or Johnson?

   _______________________________________________________________

2. How does Mrs. Fang help Ann do?

   _______________________________________________________________

3. Whose arm was broken?

   _______________________________________________________________

4. What does Mrs. Fang look after the old people?

   _______________________________________________________________

5. Why does Mrs. Fang like her job?

   _______________________________________________________________

题型:探究题

反映我国原始社会末期社会情况的是

①北京人②河姆渡遗址③大汶口遗址中晚期④尧舜禹时期[ ]

A.①②

B.②③

C.①③

D.③④

题型:探究题

外资参股证券公司应符合()。

A.注册资本符合《证券法》规定

B.取得证券从业资格的人员不少于50人

C.有适当的内部控制技术系统

D.有符合条件的经营场所和合格的业务设施

题型:探究题

患者,女性,46岁,乙肝病史15年,呕吐、腹泻、意识模糊、行为异常3d。查体:生命体征正常,双上肢散在出血点,肩背部有蜘蛛痣;脾大,心、肺、腹未见异常。实验室检查:血糖7.0mmol/L,尿糖(+),尿酮(—),尿镜检(—)。

护士采取的措施不应包括

A.肥皂水灌肠

B.口服乳果糖

C.温水擦浴,避免用力搓擦

D.补充支链氨基酸

E.卧床休息,避免劳累

题型:探究题

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