题目

如图甲，水平力F的大小与时间t的关系及物体速度v与时间t的关系如图乙、丙．则下列说法正确的是（） A . 0～2s内物体不受摩擦力 B . 4～6s内物体受到的摩擦力为2N C . 2～4s内物体受到的摩擦力为3N D . 6～8s内物体处于平衡状态 答案：BOne day Mrs. Jones goes shopping alone（独自地）. When Mr. Jones comes home in the evening, she begins to tell him about a beautiful dress. “I see it in a shop this morning,” she says, “and…” “And you want to buy it,” says Mr. Jones, “how much is it?” “Fifteen pounds.” Every evening, when Mr. Jones comes back from work, his wife（妻子） goes on talking only about the dress. And at last, after a week, he says, “Oh, buy the dress! Here’s the money!” She is very happy. But the next evening, when Mr. Jones comes home and asks, “Have you got the famous（著名的） dress?” She says, “No.” Why not?” he says. “Well, it is still in the window of the shop after a week. I think nobody else wants this dress. So I think it is not a good one!” （    ）1．Mrs. Jones goes shopping_________ one day. A．with Mr. Jones                             B．with her friend C．by herself                                    D．with the other woman （    ）2．Mrs. Jones tells Mr. Jones about the dress every day because________. A．it is really beautiful                       B．she wants the shop C．she wants Mr. Jones to buy it for her     D．she likes it very much （    ）3．Mrs. Jones is very happy after________. A．Mr. Jones agree（同意） to buy it for her B．Mr. Jones gives her the money for the pants C．she gets the beautiful dress D．she sees the dress is still in the shop window （    ）4．Mr. Jones thinks it’s the famous dress because________. A．it is a beautiful dress                              B．it is in the shop window for a week C．his wife has it                                 D．his wife talks about it again and again （    ）5．From the story we can know__________. A．Mrs. Jones is a housewife, she doesn’t have much money B．Mr. Jones doesn’t like his wife C．Mr. Jones comes home for lunch every day D．Mrs. Jones doesn’t like the things if others like them