题目内容
B Life on land probably began about 430 million years ago, though it has existed in the water for perhaps much as 3 000 million 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 the surrounding and food necessary, since 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 and needed water in which to reproduce. Once their move to land had been made, however, evolution (进化) took place quickly. By the end of 100 million years, plants had developed their roots (根), and some had got tree-like forms since height was very important in gaining sunlight. About 300 million years ago, much of the world was covered with forests of huge trees. In most ways they were like modem trees. They had roots, leaves, wood, but mostly they had not developed seeds. According to the passage, ______ appeared earlier than ______.
查看答案
搜索结果不匹配？点我反馈
更多问题
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。 Several days ago, I came across a stranger in the street who stopped and asked me directions. I (36) to show him the way to the destination, but to my (37) , he coldly refused my offer. I asked him why. Finally he told me that he was (38) I would ask him for money if I (39) him in this way. Money! I (40) deep into thought. Is it money that comes between us Money has no (41) , it cannot be (42) with good or bad. The problem (43) what attitude we have towards it. At present, we have more (44) material life than ever before, but we’re becoming more and more (45) . Why In my opinion, the (46) is the change in people’s personal (47) .They wrongly believe that (48) money should be their only aim in life, so they (49) all sorts of ways they can to (50) this aim. They are afraid of being (51) and fooled. If everyone acts like this what will our (52) be like Needless to say, money is becoming more and more important in our society, (53) it shouldn’t be the "be-all and end-all" of life. If a person only concentrates (全神贯注) on (54) , he will be lonely and void (空虚), and even go astray (犯错误). It is up to us to make our lives happy, not money. We should try our best to help others (55) and freely. If everyone does so, our society will be better and better.
B Life on land probably began about 430 million years ago, though it has existed in the water for perhaps much as 3 000 million 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 the surrounding and food necessary, since 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 and needed water in which to reproduce. Once their move to land had been made, however, evolution (进化) took place quickly. By the end of 100 million years, plants had developed their roots (根), and some had got tree-like forms since height was very important in gaining sunlight. About 300 million years ago, much of the world was covered with forests of huge trees. In most ways they were like modem trees. They had roots, leaves, wood, but mostly they had not developed seeds. Plants with roots appeared about ______.million years ago.
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。 Several days ago, I came across a stranger in the street who stopped and asked me directions. I (36) to show him the way to the destination, but to my (37) , he coldly refused my offer. I asked him why. Finally he told me that he was (38) I would ask him for money if I (39) him in this way. Money! I (40) deep into thought. Is it money that comes between us Money has no (41) , it cannot be (42) with good or bad. The problem (43) what attitude we have towards it. At present, we have more (44) material life than ever before, but we’re becoming more and more (45) . Why In my opinion, the (46) is the change in people’s personal (47) .They wrongly believe that (48) money should be their only aim in life, so they (49) all sorts of ways they can to (50) this aim. They are afraid of being (51) and fooled. If everyone acts like this what will our (52) be like Needless to say, money is becoming more and more important in our society, (53) it shouldn’t be the "be-all and end-all" of life. If a person only concentrates (全神贯注) on (54) , he will be lonely and void (空虚), and even go astray (犯错误). It is up to us to make our lives happy, not money. We should try our best to help others (55) and freely. If everyone does so, our society will be better and better.
B Life on land probably began about 430 million years ago, though it has existed in the water for perhaps much as 3 000 million 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 the surrounding and food necessary, since 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 and needed water in which to reproduce. Once their move to land had been made, however, evolution (进化) took place quickly. By the end of 100 million years, plants had developed their roots (根), and some had got tree-like forms since height was very important in gaining sunlight. About 300 million years ago, much of the world was covered with forests of huge trees. In most ways they were like modem trees. They had roots, leaves, wood, but mostly they had not developed seeds. The main idea of the first paragraph is ______.
微信支付 
支付宝支付