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1、环球阅读英语报高一20225期
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6．Life on land probably began about 430million years ago，thought it had existed in the water for perhaps as long as 3，000million years．When we think of the first life on land，we probably think of strange animals coming out of the oceans，but，in fact，no animals could have been living if plants had not been on land first．Plants had to be on land before animals arrived．They supplied the first land animals with food necessary to live，since they-the plants are the only form of life that is able to get and store energy．
The first plants to exist out of the water were probably certain kinds of algae（海藻）which were followed by other plants that grew close to the ground near water and needed water in which to reproduce．Once the move to land had been made，however，evolution（进化）took place quickly．By the end of 100million years，plants had developed their roots，and some developed tall tree-like forms，since height was very important in competition for sunlight．About 300million years ago，much of the world was covered with forests of huge trees．
In most ways they were like modern trees．They had roots，leaves，wood，but mostly they had not developed seeds．
29．The main idea of the first paragraph is．C
A．life on land probably began about 4，300years ago
B．the first animal on land came from oceans
C．there wouldn't be animals without plants
D．plants are the only form of life that is able to get and store energy
30．Which of the following is TRUE？A
A．Algae have existed for more than 430million years
B．It is impossible that algae might be the earliest plant on land
C．Plants get food from animals in the oceans
D．Evolution began after animals appeared on land
31．Plants with roots appeared aboutC million years ago．
A.430
B.300
C.330
D.100． 试题答案
分析 本文主要讲述动植物的起源，以及时间发展过程．
解答 29-31 CAC
29 C 细节题． 根据第一段no animals could have been living if plants hadn't been on land first．可知没有植物，动物根本不能存在，故选C．
30 A 细节题．第一段说陆地上的生命出现于430 million years ago，第二段说海藻是最早的植物．故选A．
31 C 细节题． 根据文章第一段Life on land probably began about 430million years ago，thought it had existed in the water for perhaps as long as 3，000million years．最早出现的植物在四亿三千万年前，一亿年后植物开始生根，即三亿三千万年前． 故选C．
点评 做阅读理解时要快速的浏览全文，把握文章主旨大意，带着问题回到原文，寻找细节或概括相应的答案，最后要理清作者写作思路．
By pretending to be ill, the candidate tried to run away from _______ issues, which always aroused too much debate.
A． confidential B． controversial
C． contemporary D． contradictory
