通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出一个最佳答案。

    It's a fine Saturday morning. There are many people in the park. Many of 1  are young and some are old.

    Some children are 2  games over there. Two boys are playing  3 their toy bats. There is a lake in the park. The water is 4  .  There are some 5  on the lake.  6  the lake a young man is reading. There is a house near the lake. Beside 7 house two men are working. Look at that big tree! There are some birds 8  it. Under it are some men. Four of them are playing cards. One of them is looking at two cats. The cats are 9 up the tree. What do they 10  to do? They want to catch the birds.

①这位好心人的馈____ A．guì B．kuì赠令灾区人民感动万分。

②贫困山区的人民生活十分拮据____ A．jū B．jǜ

③我梦寐____（A．mèi B．wèi）以求的是2008年和父母一起去北京看奥运会。

下列关于细胞化合物的叙述，正确的是（  ）

①质粒、核糖核苷酸、ATP共有的组成元素是C，H，O，N，P；

②内环境中发生的丙酮酸氧化分解产生ATP的过程，属于放能反应；

③溶酶体含有多种水解酶，可以分解衰老的细胞器，并为细胞生命活动提供原料；

④T细胞释放的淋巴因子能使受到抗原刺激的B细胞增殖；

⑤叶肉细胞内的H都在光反应阶段产生，用于暗反应C₃的还原；

⑥ATP，酶、激素和神经递质等都是细胞中产生的有机物，作用后都立即被分解．