What number comes next? 2, 3, 7, 13, 27, 53? 题目和参考答案——青夏教育精英家教网—

题目内容

What number comes next?

2, 3, 7, 13, 27, 53?

答案：107
解析：

The sequence runs“×2－1，×2＋1”and so on．

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Uncertainty spreads through our lives so thoroughly that it dominates our language. Our everyday speech is made up in large part of words like probably, many, soon, great, little. What do these words mean?Such verbal expression is not necessarily to be criticized. Indeed, it has a value just because it allows us to express judgments when a precise quantitative statement is out of the question.
We have been trying to pin down by experiments what people mean by these expressions in specific contexts, and how the meanings change with age. For instance, a subject is told “There are many trees in the park” and is asked to say what number the word many mean to him. Or a child is invited to take “some” sweets from a bowl and we then count how many he has taken. We compare the number he takes when he is alone with the number when one or more other children are present and are to take some sweets after him, or with the number he takes when told to give “some” sweets to another child.
First, we find that the number depends, of course, on the items involved. To most people some friends means about five, while some trees means about twenty. However, unrelated areas sometimes show parallel values. For instance, the language of probability seems to mean about the same thing in predictions about the weather and about politics: the expression “is certain to” (rain, or be elected) signifies to the average person about a 70 percent chance; “is likely to”, about a 60 percent chance; “probably will” about 55 percent.
Secondly, the size of the population of items influences the value assigned to an expression. Thus, if we tell a subject to take “a few” or “ a lot of” glass balls from a box, he will take more if the box contains a large number of glass balls than if it has a small number. But not proportionately more: if we increase the number of glass balls eight times, the subject takes only half as large a percentage of the total.
Thirdly, there is a marked change with age. Among children between six and fourteen years old, the older the child, the fewer glass balls he will take. But the difference between a lot and a few widens with age. This age effect is so consistent that it might be used as a test of intelligence.
【小题1】 What’s the right attitude towards the words like probably, many, soon?

A．They are inaccurate and we should avoid them.

B．They are necessary since we cannot be always precise.

C．They should be criticized because there are too many of them.

D．Their value is not yet clear since we don’t know their meaning.

【小题2】 Why do we do experiments with the words “many” and “some”?

A．To prove people are insensitive to these words.

B．To prove the words dominate our everyday speech.

C．To find out how the meanings vary with age and contexts.

D．To find out whether the words can mean a precise quantity.

【小题3】 Which of the expressions means a larger chance in weather broadcast?

【小题4】 Which of the following will least definitely influence the number of items a kid takes out of a box when he is invited to take “some”?

A．Whether the quantity of items is large or small.

B．Whether the items are candies or toys.

C．Whether the kid is a toddler or a youngster.

D．Whether the kid is alone or accompanied by other children.

【小题5】 What will tell us about the intelligence of a child?

A．The consistency of picking up a certain glass ball.

B．How many glass balls he will take when he’s asked to.

C．The difference between a lot and a few when he takes glass balls.

D．Whether there are marked changes in his first pick and second one.

It is possible to do many simple tricks with numbers. Here is one trick. It has seven steps.
First, write down your house number. For example, if your address is 73 Lemon Street, you would write down 73.
Next, double it. In other words, multiply(乘) it by two. Then, add five to this doubled number. For example, if your address was 73 and you doubled it, you would get 146. Then, if you added five, you’d get 151.
So, to repeat the first three steps, write down your house number, double it, and add five.
Fourth, multiply this number by 50. In our example here, if you multiply 151 by 50, you’ll get 7550.
The fifth step is to add your age to this total. For example, if you’re 26 years old, you should add 26 to this total. In our example here, the result would be 7550 plus 26, you’ll get 7576.
Sixth, you have to add the number of days in a year, which is 365. In our example here, 365 added to 7576 is 7941.
The seventh and final step is this: subtract(减) 615 from the number that you have. In our example, 7941 minus 615 is 7326.
The result here, 7-3-2-6, is the trick. The first part of the number is the address and the last part of the number is the age of the person. That is, 73 is the address that we started with, and 26 is the age that we used.
If you follow these seven steps with any address and the age of any person. You will get the same result.
73 According to the trick, what number can you get if you are 16 years old and your house number is 85？
A. 1685 B. 8516 C. 8165 D. 1658
74. How can your age number appear at the last part of the result?
A. It’s really a trick.
B. By taking all the steps except Step1 and Step 2.
C. By taking Step 6 and Step 7.
D. By taking all the steps.
75. What’s the secret of the trick?
A. It’s impossible to know.
B. By taking Step 2 and Step 4, we get the formula(公式)：your address number ×2×50.
C. By taking all the steps except 1 and 2, we get the formula: 5×50+your age number+365－615="your" age number.
D. Both B and C.

C
Classified ads
For direct classified service, call 800-0667 10 a.m.-4 p.m., Monday—Friday.
For rent
Excellent room for girls, begins Jan., 2,4,or 8 months lease(租期). Single,$105-125.Double,$140. Call 800-1932.
Family home, 3 bedrooms, large yard.$275. Call 800-4300
**********************************************************************************
For sale
Sheepskin coat, men’s size 42, 1 year old. $85. After 6 p.m.Call 800-5224.
Color TV21,$150；transistor radio, $15；recorder,$25. Call 800-0739.
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Help wanted
Babysitter — My home
If you could find a few hours during the day, some evenings and weekends to care for 2 school-age children, please call 800-1111.
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Lost
A black bag with a pencil-box and some books left in the reading room. Will the finder please come to Class 3,Grade 1?
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Found
A green Jacket was left on the sports ground yesterday afternoon(April 15th).Will the owner please ring 656-6688?
59.“Classified ads”may probably mean____________.
A.ads about everyone’s life
B.ads giving one some necessary information
C.ads divided into different groups according to a certain rule
D.ads for which you needn’t pay any money
60.If you want to place an ad. What number should you call?
A.800-0739.                 B.800-1932.                 C.800-4300.                 D.800-0667.
61.If you want to get a used color TV and a recorder, how much will you have to pay?
A.＄275.                      B. ＄150.                    C. ＄25.                     D.＄175.
62.If you want to find a part-time job,you will look at                .
A.For rent                   B.For sale                     C.Help wanted                     D.Lost
63.If you can’t find your school card,you will put up a notice at_________.
A.Lost                          B.Found                       C.Help wanted                     D.For sale

Below are some classified ads from the Internet

Health & beauty
Do You Smoke?
Try the Electronic Cigarette! No harm to your lungs and heart. No bad smell on clothes or breath. No second-hand smoke. Get a variety of flavors. One Year Warranty (担保书) and a 30 Day Money Back Guarantee. Why not have a try!
http://www. electroniccigar.com

One Week Diet System
The One Week Diet System is a breakfast and mid-afternoon weight loss meal replacement that contains a selection of nutrient rich, all natural ingredients that will help you lose 2-3lbs per week.
Call 312-078-4860

Counseling just in 50 dollars
For stress, anger, addiction, depression, family conflicts, divorce, we are offering counseling on phone by our trained and licensed psychologist.
We are offering counseling by phone 24 hours a day.
Please call 9046858090 for appointments from 4am to 11pm every day.

Volunteer --- Teach, organize and improve the life for families in Brazil/Ecuador /Congo.
It is a 9/14/20 months program where you are in training together with people from many different countries at IICD Michigan.
Go to our website at
http://www. iicdmichigan.org
Call 269-591-0518

Shopping
Get big Discount on Gifts, Flower Delivery
Find great deals on Gifts, Cigarettes, Flower Delivery, masks, Funny T-Shirts, costumes, snacks, Fruit & Wine, Romantic Gifts and many more. Find and enjoy latest Coupons (优惠卷), Discounts and Free Shipping offers from leading gift stores whenever you shop online. For more details visit
http://www.productreviewjunction.com/Gifts & Flowers.htm
Huge Discount on Textbooks, Book Rental (Los Angeles, USA)
Best deals on Used Textbooks, College Textbooks, Online Book Rental, Audiobook Rental, Rare Books, Magazine Subscription and many more. Find and enjoy latest Coupons, Discounts and Free Shipping offers from leading book stores whenever you shop online. For more details visit
http://www.productreviewjunction.com/Books.htm

1. Which website should you visit if you want to buy some cigarettes as presents at a low price?
A. http://www. electroniccigar.org
B. http://www. iicdmichigan.org
C. http://www.productreviewjunction.com/Gifts & Flowers.htm
D. http://www.productreviewjunction.com/Books.htm
2. Where do the volunteers get training before taking on their voluntary work?
A. Brazil B. Ecuador C. Congo D. America
3. What number can you call if you are going to lose weight?
A. 312-078-4860 B. 240-564-3268 C. 302-393-3126 D. 252-747-7024

Classified Ads（广告）
For direct classified service, call 800-0667 10 a.m.—4 p.m., Monday---Friday.
For Rent
Best on Campus
Excellent Room for girls, begins Jan., 2, 4, or 8 months lease. Single, $ 105. $125. Double, $ 140. Call
800-1932.
Family Home, 3 bedrooms, large yard. $ 275. Call 800-4300.
For Sale
Sheepskin Coat, men’s size 42, 1year old. $ 85. After 6 p.m. call 800-5224.
Moving: Must sell. Color TV 21, $ 150; transistor radio, $ 15; recorder, $ 25. Call 800-0739.
Help Wanted
Babysitter—My home
If you could find a few hours during the day, some evenings and weekends to care for 2 school- age children,
please call 800-1111.
Lost
A black bag with a pencil-box and some books left in the reading room. Will the finder please come to Class 3, Grade 1?
Found
A green jacket was left on the sports ground yesterday afternoon ( April 15th). Will the owner please ring
656-6688?
【小题1】If you wanted to place an ad. , what number would you call?

【小题2】“ Classified Ads” may probably mean “________”.

A．ads about everyone’s life

B．ads giving one some necessary information

C．ads divided into different groups according to a certain rules

D．ads for which you needn’t pay any money

【小题3】If you want to find a part-time job, you will look at________.

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