A. lesson B. truth C. saying D. story A American researchers say drinking tea may help st——青夏教育精英家教网—

A. lesson B. truth C. saying D. story A American researchers say drinking tea may help strengthen the body’s defense system against infection. Doctors at Brigham and Women’s Hospital in Boston, Massachusetts, did the study. The team studied a chemical found in black, green, oolong and pekoe tea. This chemical is an amino acidcalled L-theanine. The scientists say it may increase the strength of gamma delta T cells. That’s the letter T, not the drink. Gamma delta T cells are part of the body’s defenses. First, the researchers mixed some of these cells with antigensfound in the amino acid. Antigens help the body react to infection. Then the scientists added some bacteria. Within twenty-four hours, the cells produced a lot of interferon, a substance that fights infection. Cells not mixed with the antigens did not produce interferon. In the second part of the study, eleven people drank five to six cups of black tea every day. Ten other people drank the same amount of instant coffee. That is dried coffee mixed with hot water. Two weeks later, and again two weeks after that, the researchers tested the blood of all twenty-one people. They also looked at what happened when they added bacteria to the blood cells. They found that the tea drinkers produced five times more interferon after they started drinking tea. The coffee drinkers did not produce interferon. Doctor Jack Bukowski led the study. He says the antigens added to the gamma delta T cells were responsible for the increased reaction to the bacteria. He says the study also showed that the cells were able to remember the bacteria and fight them again the next time. Earlier research already has found that tea can help prevent heart disease and cancer. Doctor Bukowski says the new study must be repeated with more people. If the findings prove to be true, he says, then tea drinking might also help protect against bacterial infections. He says the amino acid L-theanine could be removed from tea and used as a drug to strengthen the body’s defenses. 【查看更多】

题目列表(包括答案和解析)

－I didn’t do well in the exam yesterday．Of course I _________ for it．

－Oh, you poor thing! But I think you should learn a lesson．

[　　]

A．

haven’t studied

B．

hadn’t studied

C．

wasn’t studying

D．

wouldn’t study

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We are going to learn________ next week.

A. Lesson Twelve　　　　　　　　　　　　　　　　　　　　　　 B. Lesson Twelfth

C. Twelfth Lesson　　　　　　　　　　　　　　　　　　　　　　 D. the Lesson Twelfth

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语篇理解

Trucks often get very dirty. Many of them are taken to Bill Jackson to be cleaned.

Last week , Bill was in the back of a large truck, cleaning. The truck driver thought that Bill had finished. He closed the door and bolted it , Bill couldn’t get out. The driver started travelling down the highway（公路） with Bill locked in the back. Eight hours later the truck stopped. When the driver opened the back door, there was Bill, cold and hungry.

Now when Bill cleans a truck he leaves a sign on the door, It says,“ I’m still in the truck. Don't take me with you.”

1.(　　)The best title（标题）for the passage is ______ .

A. Bill Takes a Trip He Didn’t Want

B. Take a Free Ride

C. How to Clean a Truck

D. A Wonderful Trip

2.(　　)Now when Bill cleans a truck, he ______ .

A. keeps the door open

B. is even more careful

C. leaves a sign

D. warns the driver first

3.(　　)The driver took Bill away in the truck _______.

A. on purpose（故意的）

B. by mistake

C. to make fun of him

D. to teach him a lesson

4.(　　)Bill was locked in the truck for eight hours which made him ______ .

A. pleased　　　B. suffer a lot

C. cold　　　　 D. hungry

5.(　　)The word “bolt” means ______ .

A. lock　　　　B. open

C. drive　　　　D. wash

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完形填空

　　Forty-three years seems like a long time to remember the name of a person．I have forgotten the name of an old lady who was a(n)　　1　　 on my paper route when I was a twelve-year-old boy．Yet it seems like just yesterday that she taught me a lesson in 　　2　　．One afternoon, a friend and I were 　　3　　 rocks onto the roof of the old lady’s house 　　4　　 her backyard．The object of our play was to observe how the rocks changed to missiles as they 　　5　　 to the roof’s edge and shot out into the 　　6　　．

　　I found myself a perfectly smooth rock and sent it for a ride．The stone was too smooth, however, so it 　　7　　 from my hand as I let it go and headed 　　8　　 for a small window on the old lady’s back wall．

　　I was too scared about getting 　　9　　 that first night to be concerned about the old lady with the broken window．However, a few days later, 　　10　　 I was sure that I hadn’t been discovered, I started to feel 　　11　　 for her misfortune．

　　I made up my mind that I would 　　12　　 my paper delivery money, and in three weeks I had the seven dollars that I 　　13　　 would cover the cost of her window．I put the money in an envelope with a(n)　　14　　 explaining that I was sorry for breaking her window and hoped that the seven dollars would cover the 　　15　　 for repairing it．

　　I waited until it was dark, then put the envelope through the letter slot in her door．

　　The next day, I 　　16　　 the old lady her paper and was able to 　　17　　 the warm smile that I was 　　18　　 her．She thanked me for the paper and said,“Here, I have something for you．”It was a bag of cookies．I thanked her and ate the cookies as I 　　19　　 my route．

　　After several cookies, I 　　20　　 an envelope．When I opened the envelope, I was shocked．Inside was the seven dollars and a short note that said,“I’m proud of you．”

(1)


[　　]
A．	adviser
B．	customer
C．	assistant
D．	neighbor

(2)


[　　]
A．	carefulness
B．	cleverness
C．	selfishness
D．	forgiveness

(3)


[　　]
A．	throwing
B．	kicking
C．	picking
D．	striking

(4)


[　　]
A．	by
B．	under
C．	from
D．	around

(5)


[　　]
A．	dropped
B．	rolled
C．	flowed
D．	fell

(6)


[　　]
A．	room
B．	kitchen
C．	yard
D．	sky

(7)


[　　]
A．	skipped
B．	stopped
C．	stepped
D．	slipped

(8)


[　　]
A．	straight
B．	slow
C．	right
D．	fast

(9)


[　　]
A．	lost
B．	trapped
C．	caught
D．	hurt

(10)


[　　]
A．	before
B．	when
C．	but
D．	though

(11)


[　　]
A．	guilty
B．	safe
C．	anxious
D．	nervous

(12)


[　　]
A．	borrow
B．	move
C．	transfer
D．	save

(13)


[　　]
A．	used
B．	calculated
C．	chose
D．	earned

(14)


[　　]
A．	book
B．	article
C．	note
D．	notice

(15)


[　　]
A．	period
B．	cost
C．	size
D．	distance

(16)


[　　]
A．	handed
B．	sold
C．	left
D．	showed

(17)


[　　]
A．	witness
B．	wear
C．	return
D．	bring

(18)


[　　]
A．	comparing to
B．	playing with
C．	learning about
D．	receiving from

(19)


[　　]
A．	continued
B．	chose
C．	followed
D．	forgot

(20)


[　　]
A．	tore
B．	marked
C．	bought
D．	felt

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短文改错

此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾(√)，如果有错误(每行只有一个错误)，则按下列情况改正：

该行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉。

该行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。

该行错一个词：在错的词下画一横线，在该行右边横线上写出改正后的词。

注意：原行没有错的不要改。

Jim came to New York from England, dreamed	1．________
about painting．Hanna came for New York	2．________
dreaming about music．Jim and Hanna met a studio．	3．________
Before long they were good friends and got marry．	4．________
They had only a small house to live, but they were	5．________
happy．They loved each other, and they were both interest in art．	6．________
Everything was fine while one day they found they had	7．________
spent all their money．Hanna decided to give music lessons．	8．________
One afternoon she said to husband, “Jim, I’ve found a pupil,	9．________
a general’s daughter．I was to give three lessons a week	10．________
and get ＄5 a lesson．”

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