Replace the dots with a word to mak-我要搜题网

[填空题]Replace the dots with a word to make three new words. (…)DOOR/FLOW/GROW

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[填空题]What word of five letters has six left after you take two away

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[填空题]The factory is going to make a new model of bicycle, designed (special) ______ for women.

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[单项选择]The teacher tried to make the new student feel （　）.
A. with ease
B. at leisure
C. at ease
D. at rest

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[单项选择]Passage Five

A new kind of radar has been developed for spaceship travelers. A working laboratory model of a new system of radar that makes use of a beam of light is said to be ten thousand times more accurate than the best comparable system of radar that used microwaves.
The model has shown that this radar system, known as laser-doppler radar, can measure with absolute precision speeds varying from spaceship orbital injection (进入) velocities (速度) of five miles per second down to virtual stops—speeds of less than one ten thousandth of an inch per second. According to the scientists who are developing this system, such fine measures of velocity are of prime importance in space missions. In a rendezvous (对接) between two spaceships, or in a landing approach by a vehicle onto an orbiting space station, a bump could rip open a ship’s skin, or a
A. measures the movements of a spaceship by means of light beam
B. makes use of microwaves
C. makes use of sound waves
D. Both A and B

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[单项选择]Passage Five

A new look at an asteroid orbiting the sun shows it could possibly smash into the Earth with tremendous force. But experts say the potential impact is still 872 years away, time enough for the speeding space rock to alter its course.
Named 1950DA, the asteroid--1 kilometer wide--is the most threatening to the Earth of all of the known large asteroids, but the odds are only adout one in 300 that it would impact the planet, researchers said. "One in 300 is pretty long odds," said Jon D. Giorgini, a scientist in Califonia. "I’m not personally going to worry about it. It is so far in the future that lots of things could change."
There are approximately 1,000 asteroids bigger than a kilometer that can pass near the Earth in their orbit of the sun. About 580 have been found and their orbits plotted. Of these, only 1950DA represen
A. Possible Asteroid Smash in the Future
B. New Discoveries about 1950DA
C. Asteroids in the Solar System
D. Future Threat--An Asteroid Smash into the Earth

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[填空题]
Questions 13-22
Word tips
You will hear five short recordings. For each recording there are two tasks.

{{B}}Section One {{/B}}
(Questions 13-17)
For questions 13-17, choose the person who is speaking.
Write one letter( A-H)next to the number of the recording.
Do not use any letter more than once.
After you have listened once, replay the recording.
A. manager of a fast food company
B. employee representative of a dairy company
C. personnel manager
D. farmer
E. lawyer
F. bank manager
G. journalist
H. manager of a farm

______

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[单项选择]

Human Heart Can Make New Cells

Solving a longstanding mystery, scientists have found that the human heart continues to generate new cardiac cells throughout the life span, although the rate of new cell production slows with age.
The finding, published in the April 3 issue of Science, could open a new path for the treatment of heart diseases such as heart failure and heart attack, experts say.
"We find that the beating cells in the heart, cardiomyocytes, are renewed," said lead researcher Dr. Jonas Frisen, a professor of stem cell research at the Karolinska Institute in Stockholm, Sweden. "It has previously not been known whether we were limited to the cardiomyocytes we are born with or if they could be renewed," he said.
The process of renewing these ceils changes over time, Frisen added. In a 20-year-old, about 1 percent of cardiomyocytes are exchanged each year, but the turnover rate decreases with age to only 0.45 percen
A. changes over time
B. can be monitored
C. is the same as that in healthy hearts
D. is high enough to replace cells faster than they’re dying off

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[填空题]Replace the dots with a word to make five new words. (...) SURFER/SHIELD/SOCK/MILL/PIPE

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