, the farmer continued working in the field.
A. As tired he was B. As he was tired
C. Tired as he was D. So tired was he
高三英语单项填空中等难度题
, the farmer continued working in the field.
A. As tired he was B. As he was tired
C. Tired as he was D. So tired was he
高三英语单项填空中等难度题查看答案及解析
As in the field of space travel, new technologies continue to appear in undersea exploration.They share a number of similarities with each other — as well as some important differences.
Manned submersibles (潜水器), like spaceships, must maintain living conditions in an unnatural environment.While a spaceship must simply be sealed against the vacuum space, a submersible must be able to bear extreme pressure if it is not to break up in deep water.
In exploring space, unmanned vehicles were employed before astronauts.In undersea exploration, on the other hand, men paved the way, and only recently have unmanned remote-operated vehicles (ROVs) been put to use.
One reason for this is that communicating with vehicles in orbit is much easier than talking to those underwater.A vacuum is an ideal medium for radio communications, but underwater communications are limited to much slower sound waves.Thus, most undersea vehicles — particularly ROVs — operate at the end of long ropes.(电缆终端)
For a similar reason, knowing where you are undersea is much more difficult than in space.A spaceship’s position can be located by following its radio signal, or by using telescopes and radar.For an undersea vehicle, however, a special network of sonar (声纳系统)devices must be laid out in advance on the ocean floor in the area of a dive to locate the vehicle’s position.
Though undersea exploration is more challenging than outer space in a number of respects, it has a distinct advantage: going to the ocean depths doesn’t require the power necessary to escape Earth’s gravity.Thus, it remains far less expensive.
1.The purpose of the passage is ______.
A.to persuade you to explore the depths of the ocean
B.to stress the importance of the undersea exploration
C.to make you believe that the undersea exploration is better
D.to tell some differences between two kinds of explorations
2.By saying “men paved the way” in Paragraph 2 the author means that in undersea exploration ______.
A.unmanned vehicles were used in the beginning
B.men covered the ocean floor with stones and bricks
C.manned vehicles were employed before unmanned ones
D.men invented unmanned remote-operated vehicles in the past
3.The sonar devices must be placed ______.
A.from time to time
B.after the undersea vehicles dive
C.before the undersea vehicles dive
D.when the undersea vehicles are diving
4.What can we infer from the passage?
A.Submersibles usually break up in deep water.
B.Undersea vehicles can receive signals immediately.
C.Going to space needs power to escape the gravity.
D.Radio communications are quite difficult in a vacuum.
高三英语阅读理解中等难度题查看答案及解析
As in the field of space travel, new technologies continue to appear in undersea exploration. They share a number of similarities with each other — as well as some important differences.
Manned submersibles (潜水器), like spaceships, must maintain living conditions in an unnatural environment. While a spaceship must simply be sealed against the vacuum space, a submersible must be able to bear extreme pressure if it is not to break up in deep water.
In exploring space, unmanned vehicles were employed before astronauts. In undersea exploration, on the other hand, men paved the way, and only recently have unmanned remote-operated vehicles (ROVs) been put to use.
One reason for this is that communicating with vehicles in orbit is much easier than talking to those underwater. A vacuum is an ideal medium for radio communications, but underwater communications are limited to much slower sound waves. Thus, most undersea vehicles — particularly ROVs — operate at the end of long ropes.(电缆终端)
For a similar reason, knowing where you are undersea is much more difficult than in space. A spaceship’s position can be located by following its radio signal, or by using telescopes and radar. For an undersea vehicle, however, a special network of sonar (声纳系统)devices must be laid out in advance on the ocean floor in the area of a dive to locate the vehicle’s position.
Though undersea exploration is more challenging than outer space in a number of respects, it has a distinct advantage: going to the ocean depths doesn’t require the power necessary to escape Earth’s gravity. Thus, it remains far less expensive.
1.The purpose of the passage is ______.
A.to persuade you to explore the depths of the ocean |
B.to stress the importance of the undersea exploration |
C.to make you believe that the undersea exploration is better |
D.to tell some differences between two kinds of explorations |
2. By saying “men paved the way” in Paragraph 2 the author means that in undersea exploration ______.
A.unmanned vehicles were used in the beginning |
B.men covered the ocean floor with stones and bricks |
C.manned vehicles were employed before unmanned ones |
D.men invented unmanned remote-operated vehicles in the past |
3.The sonar devices must be placed ______.
A.from time to time |
B.after the undersea vehicles dive |
C.before the undersea vehicles dive |
D.when the undersea vehicles are diving |
4.What can we infer from the passage?
A.Submersibles usually break up in deep water. |
B.Undersea vehicles can receive signals immediately. |
C.Going to space needs power to escape the gravity. |
D.Radio communications are quite difficult in a vacuum. |
高三英语阅读理解中等难度题查看答案及解析
阅读下面材料,在空白处填入适当的内容或括号内单词的正确形式。
Once upon a time there was a farmer1. worked hard in the fields every day. One day, while he was ploughing the fields, he heard a 2. ( bump) sound. He saw a 3. lying by the trump. He picked it4. and found that it was a fat rabbit. He thought to5. , “Since it is so easy to get a rabbit like that, why should I work so hard all day long?” He threw his hoe away and 6. (lie) by the tree every day, 7. (dream) for more rabbits to come. When he finally realized his8. (foolish) and returned to his fields, he found that all his crops were 9. (die). This story tells that we should not wait for unexpected gains by trusting to chance and luck. Or, we should not hope to get rewards10. hard work. .
高三英语语法填空中等难度题查看答案及解析
Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.
A.which | B.that | C.what | D.where |
高三英语单项填空中等难度题查看答案及解析
The old farmer’s eyes still shone bright in the wrinkled brown face and his step as he came across the room was ________, though slow.
A.shaky B.heavy C.casual D.steady
高三英语单项填空中等难度题查看答案及解析
阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Mr.Brown was tired of living in the big city 1. he worked.He wanted to move to the country and live in a house 2. which he could get to his office in the city early every day.He 3. (1ook) for a house when he saw an advertisement in a newspaper one day.The advertisement said that a suitable house in a quiet area was up for sale at a 4. (reason)price,and the house was within a stone’s throw of a railway station from which there were frequent trains to the big city.“That’s exactly 5. I need,”Mr.Brown said to himself.So he called the house agency and arranged to go by train the next day 6. (have) a look at the house.The house agency met him at the station and they started walking.It 7. (take) them at least 15 minutes to get to the house.When they finally arrived,Mr.Brown said 8. (angry),“I should be very 9. (interest) to meet the man who threw the stone you mentioned in 10. newspaper.”
高三英语语法填空中等难度题查看答案及解析
The farmers were busy getting in the rice in the field, only ______ for a drink once in a while.
A.to stop | B.stopping | C.to have stopped | D.having stopped |
高三英语单项填空中等难度题查看答案及解析
The doctor the farmer sent his son is well-known in the field.
A. by whom B. at whom
C. to whom D. for whom
高三英语单项填空中等难度题查看答案及解析
_________ he was, he still went on with his work.
A. Tired although B. Tiring as C. Tired though D. While tired
高三英语单项填空中等难度题查看答案及解析