If we cannot reach an ________ on the program...

If we cannot reach an ________ on the program， we will have to vote.

A. agreement　　 B. development

C. treatment　　 D. improvement

九年级英语单选题中等难度题查看答案及解析

If we cannot reach an ________ on the program， we will have to vote.

A．agreement　 　　　　　　　　 B．development

C．treatment　 　　　　　　　　 D．improvement

九年级英语单项填空中等难度题查看答案及解析

If we cannot reach an ________ on the program, we will have to vote.

A．agreement　　 B．development　 C．treatment　　 D．improvement　

九年级英语单项填空中等难度题查看答案及解析

People cannot reach an agreement on the use of science and technology. For example, will radiation from electronic equipment destroy the environment? Should medical scientists change gene structures to prevent genetic disease or to create “more perfect” human beings? While people are arguing about these and others, technology continues to influence our everyday lives—the home, health and education, entertainment and communication, and so on.

Some people carry on active social lives with computers —their own or the ones in public places like cafes, social centers, libraries, and so on. Communicating with others in chat rooms,  computer users can get to know people they might never meet in traditional ways. With live online video connections, two people with cameras in their computers can see and talk to each other from separate places.

With modern telephone technology, most people stopped writing lettters—especially personal letters and notes. But now, writing to communicate has returned in electronic form, or e-mail, which is a way of sending messages from one computer to another. For some computer users, the wish to communicate intelligently or creatively with others makes them want to write better.

Computer technology has also made it possible to run a house electronically. From turning lights on and off to starting the coffee and cooking the hot meal, computers are taking care of people at home. Many modern machines have computer chips that allow their owners to program them. For instance, you can “instruct” a microwave oven how to cook a dish. Most entertainment equipment operates with computer technology too. Computers can even start cars automatically so that on cold winter mornings you can get into a warmed-up vehicle and drive off.

Although much of the technology in our everyday lives has good effects, there are some uses that raise questions. For example, are interactive media ( i.e., a combination of television, telephone, and computer) going to control minds, cause people to forget about family life and personal relationships? What effects will the genentic engineering of food have on people’s health? High-tech medical treatments can make a person live a much longer life, but can they improve the health and happiness of human beings? Only time will tell, but, in the meantime, science and technology will continue to move forward.

1. What does the underlined word “ chips” mean?

A. thin pieces of potatoes  B. small holes    C. small pieces of wood   D. central parts

2.We can know from the passage that _________.

A. technology never stops changing our everyday lives

B. with computers each of us can live a comfortable life

C. people can do more activities with computers

D. the more you use computers, the better you might write

3.What can we infer from the underlined sentence in the last paragraph?

A. The longer you live, the happier you are.

B. High-tech medical treatments can’t improve our health and happiness.

C. High-tech medical treatments can’t help us with everything.

D.The writer questioned high-tech medical treatments somehow.

4.What is the best title for the passage?

A. Science and New Technology        B. Computers Change Our Lives

C. Everyday Uses of Technology        D. Only Time Will Tell

九年级英语阅读理解中等难度题查看答案及解析

I’m afraid we will have to call the police if you ____ breaking into the car.

A. try on B. put on 　 C. base on 　 D. insist on

九年级英语单项填空中等难度题查看答案及解析

Hurry up! If we get to the village on time, we will have _____________ to eat.

A. something　　 B. anything　　　 C. nothing

九年级英语单项填空中等难度题查看答案及解析

We will have a ball game on the playground if it ________.

A.isn’t rain B.doesn’t rain C.won’t rain D.rains

九年级英语单选题中等难度题查看答案及解析

Let’s keep to the point or we　　 any decisions.

A. will never reach　　 B. have never reached

C. never reach　　 D. never reached

九年级英语单选题中等难度题查看答案及解析

Li Yang wants to work on the space program,　　　　　　　　 he can’t be an astronaut.

A.if B.until C.unless D.even if

九年级英语单选题中等难度题查看答案及解析

Turn on the radio. A program will come out from a broadcasting station miles and miles away. We know that sounds and music themselves couldn’t travel that distance through space .There must be something that brings the program from the station. But what is this silent carrier ( 载体) ?

This is known as radio waves. However, we can’t see them or even hear them. In fact, nobody knows exactly what they are. Nevertheless( 然而) ，we know that　 they are made by electricity .

At the broadcasting station, people talk, sing, play musical instruments or make many other sounds. These sounds are changed into electricity. Then from the broadcasting aerial (天线)of a tall tower , electricity sends out radio waves which travel　 in all directions .And some of them reach your radio aerial. What happens next is a magical thing. The radio waves start an electric current ( 电流) in your aerial like the one that was first made in the broadcasting station . Finally, the loudspeaker in your radio set changes the electricity into sound .Therefore, you hear the program.

根据材料内容选择最佳答案，将其标号填入题前括号内。

1.When you turn on the radio _________________.

A. you can see a program

B. you can hear a program

C. a picture will appear

D. you can feel the electric current.

2.The silent carrier that brings the program to you is called ____________.

A. radio set　　 B. sound waves

C. radio waves D. radio current

3.Electricity sends out radios waves from _________________.

A. the broadcasting aerial of a tall tower.

B. you radio set

C. all directions

D. a broadcasting station

4.The electricity is changed into sound by _______________.

A. the radio waves　　　　　　　　　　 B. the aerial

C. the radio program　　　　　　　　　 D. the loudspeaker

5.You may find this passage in a ______________.

A. guidebook

B. science magazine

C. fashion newspaper

D. fictional novel

九年级英语阅读理解中等难度题查看答案及解析