题目

为了提高温室的经济效益，需要调控好温室内的光照、温度、气体和湿度。科研人员对温室栽种的作物进行了相关研究，以下是实验测得的有关数据。（甲表所示为在特殊的装置内，给予不同强度的光照，测到的该植物的氧气释放量。乙图表示该作物相对光合速率（%）与叶龄的关系，A点表示幼叶呈折叠状，B点表示叶充分展开。丙图中曲线1、2分别表示作物的实际光合量和净光合量。） 光照强度02468101214 O2释放量/（μL·cm－2叶面·min－1）－0.200.20.40.81B)请先阅读下面短文，掌握其大意，然后用方框所给的词的适当形式填空，并将答案填写到答题卷的相应位置，每个词限用一次。（每小题1分；共10分）influence between foreign who difficult complete spending different such learnNow more than 40 million 【1】 around the world are learning Chinese, according to a report. The relationship 【2】the United States and China is becoming more and more important in the world. This has really 【3】 the growth of Chinese language learning in U.S.I am Chris from the United States. I am one of the many people 【4】 are learning Chinese. I am studying at a Confucius Institute(孔子学院)in New York. There are 10 students in our class. Some are over thirty years old. Some are middle school students. Our teacher comes from Beijing. He is fun and often tells us interesting things in China. I think Chinese is 【5】 to learn. The biggest challenge for American learners is the writing. Chinese is 【6】 different from any other language in the world. It will take me a lot of time to learn enough Chinese characters(汉字). But I think there are many benefits (益处) of 【7】 time in learning Chinese. One important benefit is that it makes me see things from a 【8】 point of view, because Chinese is 【9】 a different language from English. I think for American the students most important benefit is that 【10】 a challenging language can open up their eyes.