题干

如今武汉的很多街口都安装了360°高清晰摄像头,由公安局实施24小时监控,来保护人民的安全.摄像机的像距几乎不变,但镜头的功能类似于人眼睛的晶状体,焦距可以调节。如图所示,某嫌疑犯在成像板上已经成清晰的像,此时镜头的焦点在F处,在监控此人的过程中(该人在成像板上的像保持清晰),下列说法正确的是(  )


A:如果该人远离镜头,镜头的焦点可能变在b点

B:如果该人远离镜头,镜头的焦点可能变在a点

C:如果该人靠近镜头,镜头的焦点可能变在c点

D:如果该人靠近镜头,镜头的焦点可能变在b点

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D

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(C)

配对阅读。左栏是5个人的活动计划。右栏是7个人的时间安排情况。请为左边的每个人选择最适合参加其活动计划的人。

____ Jane wants to ask some of her friends to come to her birthday party on Friday night.Who can go to her party?

____ Kay has two movie tickets.She wants to invite someone to go to the movies with her on Saturday evening.

____ Simon wants to watch a soccer game at the gym on Monday afternoon.He wants to know    who can go with him.

____ Jeff's English is not very good.So he wants to find a boy to help him with English on   Saturday evening.

____ Lisa wants to go shopping on Sunday afternoon, and then go to the movies that evening.She doesn't know who has time to     go with her.

A.Laura

    I usually visit my aunt on Saturday morning and afternoon,and I am free in the evening.

B.Ben

    I have to go to school from Monday to Friday.I am free at the weekend and I am glad to help others with English.

C.Tim

    On Monday morning,I have to study math.But I am free in the afternoon.

D.Anna

    I have to study from Monday to Friday afternoon.But I am free on Friday night.

E.Wilson

    On weekdays,I have lessons in the daytime,and I practice dancing in the evening.

F.Katrina

    I go to school on weekdays,and on the weekend I am free.I want to go out with friends and have fun on weekends.

G.Linda

    I live in school from Sunday evening to Friday afternoon.I don't have much free time.