题目

请回答下列Ⅰ、Ⅱ小题 Ⅰ、图甲表示在光照充足、CO2浓度适宜的条件下，温度对某植物真正光合作用速率和呼吸作用速率的影响。其中实线表示真正光合作用速率，虚线表示呼吸作用速率。图乙为该植物在适宜条件下，光合作用速率随光照强度变化的示意图。请据图回答：    （1）由图甲可知，与              作用有关的酶对高温更为敏感。温度会影响光合作用的                           阶段。   （2）当环境温度为40℃时，该 阅读短文，根据短文内容及首字母填空。 When you’re listening, try to do some t  l  ．For example, you can think of the following questions．What h  2  , When, where and how? What was the result and what does the speaker want to tell us? This way, you may understand(理解)the passage(段落)b  3  ． ●Listen for important facts(事实)． It’s important for you to remember some important facts．For example, if the passage is a science  r  4  , you should try to remember its f  5  and how the scientists got their results． ●Don’t think about one or two words for too long． You may h  6  some words that you don’t know, but don’t s  7  too much time on them．Very often, you’ll find out w  8  they mean later when you go on with the listening．But you can remember some words or s  9  that you think are important, and you can use them when you’re a  10  the questions．