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更多“She works very hard. You can (…”相关的问题
A.optimistic
B.noisy
C.sad
D.right
A.简单句
B.并列句
C.主从复合句
D.并列主从复合句
A.in contrast with
B.in harmony with
C.in conflict with
D.in contact with
Every year we go to Florida.We like to go to the beach.
My favorite beach is called Emerson Beach.It is very long, with soft sand and palm trees.It is very beautiful.I like to make sandcastles and watch the sailboats go by.Sometimes there are dolphins and whales in the water!
Every morning we look for shells in the sand.I found fifteen big shells last year.I put them in a special place in my room.This year I want to learn to surf.It is hard to surf, but so much fun! My sister is a good surfer.She says that she can teach me.I hope I can do it!
1.My favorite beach is...()
A.Surf Beach
B.Emerson Beach
C.Palm Beach
D. Long Beach
2.What animals do I see in the water？()
A.Sharks
B.Starfish
C.Dolphins
D. Dogs
3.How many shells did I find last year？ ()
A.Twelve
B.Five
C.Fifty
D. Fifteen
4.What do I want to learn this year？()
A.Surfing
B.Swimming
C.Sailing
D. How to find shells
5.Where did I put my shells last year？()
A.In a box
B.In the garage
C.In my room
D. In Florida
On earth gravity (引力) makes blood flow down towards the feet, so the heart must work to pump blood up. In space blood flows up towards the heart. The effect is similar to what happens when you lie with your feet up and your head down. The flowing blood is felt by receptors in the walls of arteries (动脉) in the upper part of the body and in the heart. These receptors send signals to the brain, but the brain reads them incorrectly. To the brain, the signals means the amount of blood in the body has increased, so the brain tells other parts of the body to react to the increase in the blood. For example, the body produces more urine (尿液), resulting in loss of body fluid and salt. At the same time the astronaut has less desire to drink and so does not replace the lost fluid.
As a spacecraft begins to fall back to earth atmosphere, the crew begins to feel gravity. Blood again flows towards the feet and collects there. The heart beats faster in an effort to pump enough blood to the brain. Some crew members may not get enough blood to the brain and the heart beats too fast. They become sick and even lose consciousness as their spacecraft reenters the earth atmosphere. To prevent this, special clothing is invited for astronauts to prevent blood collecting in their legs. They put it on just before the craft reenters the earth’s atmosphere. They also drink about a liter (升) of water and eat some salt to replace the fluid they have lost while in space.
Weightlessness affects the heart and blood vessels in another way. The heart does not work as hard in a weightless environment as it does in an environment of gravity. When the heart works less hard, the heart muscles become weaker. It is replaced by fibrous tissue and fat
41.If one lies with his feet up and his head down on earth, his()
A.blood will flow up towards the heart.
B.blood will flow down towards the feet.
C.heart will pump the blood up to the head.
D.heart will have to work harder.
42.What can we infer from the second paragraph of the passage()
A.The brain reads the signals incorrectly because it tends to go wrong in outer space
B.In space an astronaut should drink some water even when he does not feel thirsty.
C.In space the amount of water in the body of an astronaut increase.
D.The receptors in the walls of arteries often send wrong signals to the brain.
43.When the spacecraft reenters the earth’s atmosphere some astronauts become sick or even lose consciousness because()
A.their brains cannot get enough blood
B.their hearts are not strong enough
C.their blood collects in their feet
D.they begin to feel the gravity again
44.When the spacecraft enter the earth’s atmosphere, the astronauts should do the following except()
A.trying to regain their consciousness
B.eating some salt
C.drinking some water.
D.putting on special clothing
45.After a long time in space, an astronaut’s heart muscles become weaker because()
A.they are short of exercises when the heart works less hard.
B.the heart works too hard under an environment of weightlessness.
C.the astronaut’s hard work puts too great a burden on the heart.
D.they are completely replaced by fibrous tissue and fat.
Dear Mr. Brown,
Thank you for your letter of 6 September regarding Mr. John Green who has been employed by this company for the past 10 years.
Mr. Green served his apprenticeship (学徒) with Vickers Tools Ltd. in Manchester, followed by a three-year course of engineering for Production Engineers. He is technically well—qualified and for the past five years has been our Assistant Works Manager responsible for production and related business in our Sheffield factory. In all his job duties he has shown himself to be hard-working, responsible and in every way a very dependable employee.
I can strongly recommend Mr. Green as I feel sure that if he were to be chosen to manage your factory in Nairobi he would bring to his work a true atmosphere of teamwork, which would be found necessary and helpful by all who would work with him.
Sincerely yours，
Tom Smith
1. How long has Mr. Green been employed by the writer's company？
For ().
2. What kind of course did Mr. Green take？
A three-year course in engineering for ().
3. What job position has Mr. Green held in the past five years？
4.What does the writer think of Mr. Green as an employee？
He is hard-working, () and dependable.
5.What is the purpose of this letter？
To () Mr. Green to manage a factory in Nairobi.
A.in the position of
B.because
C.At the time whe
D.the thing that
