2010年高考全国各地月考英语阅读理解汇编-科普知识类
(安徽省桐城六中2010届高三第二次模拟月考)
All plant cells are capable of taking up water. Even dead ones do to a certain degree. Absorption(吸收)of water by dead cell walls makes wood become larger. In common land plants, the living cells of roots take up most of the water. Land plants without roots do exist, however. Those greenish-yellow lichens(苔藓)you see on rocks in the high mountains have no roots.
(安徽省桐城六中2010届高三第二次模拟月考)
All plant cells are capable of taking up water. Even dead ones do to a certain degree. Absorption(吸收)of water by dead cell walls makes wood become larger. In common land plants, the living cells of roots take up most of the water. Land plants without roots do exist, however. Those greenish-yellow lichens(苔藓)you see on rocks in the high mountains have no roots.