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问题 选择题

绿色开花植物进行光合作用，其中光合作用的条件、原料和产物依次是

A．氧和有机物、光能和叶绿体、水和无机盐

B．二氧化碳和水、光能和叶绿体、氧和有机物

C．光能和叶绿体、二氧化碳和水、氧和有机物

D．水和无机盐、二氧化碳和水、氧和有机物

答案

答案：C

绿色植物的光合作用是指绿色植物在细胞的叶绿体里，利用光能，把二氧化碳和水合成有机物，释放氧气，同时把光能转化成化学能储存在制造的有机物中的过程，可见光合作用的原料是二氧化碳和水，条件是光和叶绿体，产物是有机物和氧气。

听力题

I’m Yuan Longping born into a poor farmer’s family in 1931 when farmers in China used to live a hard life．For d        , they struggled to search for ways to increase rich harvests, but without success. Thanks to my research on the hybrid rice that has a high output, which makes_______possible to produce harvests twice as large as before_____   expanding the area of fields, which m       （意味）22% of the world’s people rid themselves of h     (饥饿). I am circulating this knowledge in many countries to increase their harvest. Therefore, I am c       “father of hybrid rice” In addition , I am s        （满意）with my simple life. I c        little for money. In my free time I love listening to music, playing mah-jongg and reading. Look at my s        face and arms and my slim, strong body and you will think I’m __       like a farmer than a scientist.
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选择题

Yang Liwei is regarded as our  national hero, who is ____ . [ ]

A. thinking high of            

B. thought high of  

C. highly thought of          

D. thinking highly of
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