We thought the plants all died from lack of rain, and were delighted to see new______ appearing.

All we know about the origin of language is that men, unlike animals, ______ invented certain sounds to express thoughts and feelings, actions and things, so that they could communicate with each other.

A．somehow B．somewhat C．anyhow D．anyway

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_______ we have all the material ready,we should begin the new task at once.

A．Since that B．Since then C．By now D．Now that

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He spends all his spare time planting trees, and by the end of this year he______2 000.

A．had planted B．will have planted C．will plant D．has planted

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When we mention psychological addiction, we always use the term of ______ to describe a drub user' thought.

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We learn from the text that corals depend on plants for______.

A．comfort B．light C．food D．oxygen

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The most common is the “Yellow Belt”, by planting lots of trees and other green plants, we can create it across the country and provide a home for many wild life. _______________

对错

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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 modern trees. They had loots, leaves, wood, but mostly they had not developed seeds. The main idea of the first paragraph is ______. A．life on land probably began about 430 years 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

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Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For not many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights(了解). It is impossible to know today just what our Stone Age ancestors knew about plants. But from what we can observe of pre-industrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. This is logical. Plants are the basis of the food pyramid for all living things, even for other plants. They have always been enormously important to the welfare of peoples, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and a great many other purposes. Tribes living today in the jungles of the Amazon recognize literally hundreds of plants and know many properties of each. To them botany, as such, has no name and is probab-ly not even recognized as a special branch of "knowledge" at all.

Unfortunately, the more industrialized we become, the farther away we move from direct contact with plants, and the less distinct our knowledge of botany grows. Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. When our Neolithic ancestors, living in the Middle East about 10,000 years age, discovered that certain grasses could be harvested and their seeds planted for richer yields the next season, the first great step in a new association of plants and humans was taken. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops. From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varie-ties that grew wild and the accumulated knowledge of tens of thousands of years of experience and intimacy with plants in the wild would begin to fade away. It is assumed in the passage that early humans ______. A．probably had extensive knowledge of plants B．thought there was no need to cultivate crops C．did not enjoy the study of botany D．placed great importance on the ownership of property

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We all thought it a pity that you were unable to attend our meeting．

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We thought the plants all died from lack of rain, and were delighted to see new______ appearing.

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