问题 选择题

植物能进行光合作用的部位是(  )

A.整个植物体

B.只有绿色的叶片

C.所有绿色的部分

D.只有茎和叶

答案

答案:C

题目分析:绿色植物的光合作用是指绿色植物利用光能在叶绿体里把二氧化碳和水等无机物合成有机物,释放氧气,同时把光能转变成化学能储存在合成的有机物中的过程.可见光合作用的场所是叶绿体,因此植物能够进行光合作用的部位是光合作用的场所是叶绿体.有些植物的茎(如仙人掌)中也含有叶绿体,也能进行光合作用。

选择题
完形填空

                                                                         

短文填词(共10小题;每小题1分,满分10分)

阅读下列短文,根据以下提示:1)汉语提示,2)首字母提示,3)语境提示,在每个空格内填入一个适当的英语单词,并将该词完整地写在右边相对应的横线上。所填单词要求意义准确,拼写正确。

I feel very happy to receive your letter and here I'd like

to give you some a        on how to learn English.Above all,                            76. ____________

don't lose your heart. Many students find it _______ to learn English,                77. ____________

especially _______ write good English compositions.In my opinion,                    78. ____________

if you want to _______(改善)your writing, you should learn                               79. ____________

by heart as many English expressions and sentence p        as possible.      80. ____________

And at the same time try to use _______ in your compositions.I                         81. ____________

think just r        grammar rules is no use. And only by reading                         82. ____________

and writing a lot, _______ you be able to learn English well in an                            83. ____________

effective way.I definitely _______(相信) the most important                       84. ____________

thing is that you should _______ writing every day and never give up.                85. ____________