Random acts of kindness are predictable and taken for granted.（）

Judging from the context, "Practice random kindness and senseless acts of beauty." (line 2, para. 2) means______.

A．do some unplanned good deeds

B．appreciate kind acts and anything beautiful

C．offer your kindness to some people in particular

D．be aware of others' kind-heartedness

Two hundred multiples of seven are chosen at random, and 300 multiples of eight are chosen at random. Approximately what percentage of the 500 selected numbers are odd?

A．20%

B．25%

C．40%

D．5O%

E．80%

A "random walk" occurs when______.

A．stock price changes are random but predictable

B．stock prices respond slowly to both new and old information

C．future price changes are uncorrelated with past price changes

D．past information is useful in predicting future prices

It was a cold winter day. A woman drove up to the Rainbow Bridge tollbooth. “I’m paying for myself, and for the six cars behind me,” she said with a smile, handing over seven tickets. One after another, the next six drivers arriving at the tollbooth were informed, “Some lady up ahead already paid your fare.”

It turned out that the woman, Natalie Smith, had read something on a friend’s refrigerator: “Practice random (随意的) kindness and senseless acts of beauty.” The phrase impressed (使某人印象深刻) her so much that she copied it down.

Judy Foreman saw the same phrase on a warehouse wall far away from home. When it stayed on her mind for days, she gave up and drove all the way back to copy it down. “I thought it was beautiful,” she said, explaining why she’d taken to writing it at the bottom of all her letters, “like a message from above.” Her husband, Frank, liked the phrase so much that he put it up on the classroom wall for his students, one of whom was the daughter of Alice Johnson, a local news reporter. Alice put it in the newspaper, saying that though she liked it, she didn’t know where it came from or what it really meant.

Two days later, Alice got a call from Anne Herbert, a woman living in Marin. It was in a restaurant that Anne wrote the phrase down on a piece of paper, after turning it around in her mind for days.

“Here’s the idea,” Anne says. “Anything you think there should be more of, do it randomly.” Her fantasies include painting the classrooms of shabby schools, leaving hot meals on kitchen tables in the poor part of town, and giving money secretly to a proud old lady. Anne says, “Kindness can build on itself as much as violence (暴力) can build on itself.”

The acts of random kindness spread. If you were one of those drivers who found your fare paid, who knows what you might have been encouraged to do for someone else later. Like all great events, kindness begins slowly, with every single act. Let it be yours!

Why did Natalie Smith pay for the six cars behind her?

A.She had seven tickets.

B.She hoped to please others.

C.She wanted to show kindness.

D.She knew the car drivers well.

Judy Foreman copied down the phrase because she ___ .A.thought it was beautifully written

B.wanted to know what it really meant

C.decided to write it on a warehouse wall

D.wanted her husband to put it up in the classroom

Who came up with the phrase according to the passage?A.Judy Foreman.

B.Natalie Smith

C.Alice Johnson.

D.Anne Herbert

What can we infer from the last paragraph?A.People should practice random kindness to those in need

B.People who receive kindness are likely to offer it to others.

C.People should practice random kindness to strangers they meet.

D.People who receive kindness are likely to pay it back to the giver.

请帮忙给出每个问题的正确答案和分析，谢谢！

Whenever you see the old film, even one 【M1】 ______

made ten years before, you can not help being 【M2】 ______

strucked by the appearance of the women taking part. 【M3】 ______

Their hair-styles and make-up look dated; their

skirts look either too long nor too short; their 【M4】 ______

general appearance is, in fact, slightly funny.

The men taking part, on the other hand, are clearly

recognizable. There are nothing about their appearance 【M5】 ______

to suggest they belong to an entire different age. 【M6】 ______

This illusion is created by changing fashions. Over the

years, great majority of men have resisted 【M7】 ______

all attempts to making them change their style 【M8】 ______

of dress. The same can not be said for woman. 【M9】 ______

Each year a few so-called top designers

in Paris and London lay down on the law 【M10】 ______

and the women of the whole world over run to obey.

The rules of the designers are unpredictable

and dictatorial. Sometimes they decide randomly,

that skirts will be short and waists will be high;

hips are in and buttons are out.

【M1】

A shelf contains only books of poetry, short stories, and non-fiction. If Jana draws a book randomly off the shelf, what is the probability that the book will be non-fiction?

(1) There are 15 books on the shelf.

(2) There are 4 books of poetry and 5 books of short stories on the shelf.

It can be inferred from Paragraph 4 that

A．Human behavior. is confined to the exclusive concern of psychologists.

B．Economists' utility is only the explanations for random acts of kindness.

C．Altruism is developed during the long process of human evolution.

D．Biologists can help economists explain some human behavior. deviations.