Yang Liwei is the 438th person _______ in spa...

Yang Liwei is the 438th person _______ in space.

A.to travel B.travelling C.having travelled D.travelled

高三英语单项填空中等难度题查看答案及解析

After Yang Liwei succeeded in circling the earth, Chinese astronauts __________ walk in space.

高三英语单项填空中等难度题查看答案及解析

1. The voyage in space took Yang Liwei 600, 000 kilometers in1.o ______. It made him China’s first 2. a______ in space. He loved science and technology from a young age. Yang always had a strong3. d______ to learn how to fly. In 1983, he joined the army and became a pilot in 1987. In 1998, he 4.a______ to be a member of Project 921. Yang was described by his superiors as hard-working and always in control of himself. The people of China can be5.p______ of Yang Liwei.

2. Toby wrote a letter telling Aihua about his plan for his 6.a______ in Africa, on which he and his brother will visit so many exciting places and do lots of 7. e______ things.

First they will fly to a Northern African country, Morocco. Then they will travel by camel through the Sahara 8. D______. There they are to camp in tents and sleep on the ground in their sleeping bags. However, this trip might be 9.u______ since they will have to sit on camels for six days.

Then they will travel10.d______ River Nile, by starting at Lake Victoria. After that, they will move on to see wild animals in Kenya.

高三英语其他题中等难度题查看答案及解析

As is known to all, ________Yang Liwei has become a space hero is________ we have expected．

A. that; which             B. what; that               C. what; which             D. that; what

高三英语单项填空中等难度题查看答案及解析

As is known to all, ________Yang Liwei has become a space hero is________ we have expected．

A．that; which                  B．what; that          C．what; which       D．that; what

高三英语单项填空中等难度题查看答案及解析

Liu Yang is the first Chinese woman astronaut 　　　　 has ever traveled in space.

A．whom　　 　 B．which　　　　 　 C．who　　 　　 D．Whose

高三英语单项填空中等难度题查看答案及解析

After Yang Liwei succeeded in circling the earth, __________our astronauts desire to do is walk in space.

A.  where        B. what               C. that      D. which

高三英语单项填空中等难度题查看答案及解析

Liu Yang is ________ first woman astronaut in China who reached ________ space.

A．不填；the　     B．the；不填

C．the；the　     D．a；a

高三英语单项填空中等难度题查看答案及解析

. We all __________ Yang Li Wei, who is the first Chinese astronaut to take a journey to space.

A. look down upon      B. look up to                C. add up to                  D. put up with

高三英语单项填空简单题查看答案及解析

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