题目内容

Before using the machine, you must ________ carefully to these instructions．

A.
join
B.
join in
C.
take part in
D.
attend

D
attend to留心。

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A microscope is a useful instrument for observing small objects. By producing a bigger image, the microscope reveals details that are undetectable to the naked eye(裸眼).
Before using the microscope, please read the instructions below.
CAUTION: Microscopes are both delicate and expensive and must be handled with care.
1. Always carry the microscope with two hands — one supporting the base and the other on the arm.
2. Avoid stretching the wire of the lamp across a walkway.
3. Keep the stage clean and always use a glass slide for specimens(样本).
4. To avoid crushing the glass slide when focusing, begin with the lens close to the specimen and gradually back off to focus.
5. Keep the microscope covered to prevent the dust while it is being stored.
HOW TO USE THE MICROSCOPE:
1. Plug(接通电源) in the lamp.
2. Place a sample of what you wish to observe on a slide.
3. Adjust the mirror so it reflects light from the room up into the objective lens. When the mirror is correctly adjusted, a complete circle of light iwll appear when you look through the eyepiece.
4. Place your slide with the specimen directly over the center of the glass circle on teh stage. If it is a wet slide, be sure the bottom of the slide is dry.
5. With the LOW POWER objective leans placed over the slide, use the coarse focus knob to lower the lens to the lowest point.
6. Look through the eyepiece with one eye while closing the other eye. Slowly raise the lens until teh focus is relatively clear.
7. Use the fine focus knob to fine -tune(微调)the focus.
8. Without changing the focus knobs, switch to the HIGH POWER objective lens. Once you have switched to HIGH POWER, use only the fine focus knob to make the image sharper.
【小题1】Which of the following is the correct way to use a microscope according to the text?

A．Use one hand to carry the microscope

B．Place a sample directly on the clean stage

C．When stored, the microscope should be adjusted.

D．Look through the eyepiece with one eye.

【小题2】If you want to observe a thin piece of hair, which of the following should you do first.?

A．Switch to objective lens.	B．Adjust the mirror.
C．Look through the eyepiece.	D．Place the hair on a glass slide.

【小题3】According to the text, you could see a complete circle of light _____.

A．after correctly adjusting the mirror

B．while looking at the specimen on a glass slide

C．after slowly raising the objective lens

D．before positioning the mirror correctly

Shower Radio --- Warranty (保单) and Directions
Introduction
Congratulations! You are now the owner of a So Fine Shower Radio! It is sure to provide entertainment for many hours. In addition, the radio features a timer for those days when you are in a hurry.
Before using the radio, please read all directions, fill out and mail in the warranty card, and put warranty information in a safe place. Although we do not expect problems with the radio, you may need to refer to the warranty information at a later time.
Warranty
This radio is warranted for a one-year period that begins on the date of purchase. If it fails to work because of a problem of materials, please return it to the following address: So Fine Radio Corp, 1279 Delta Way, Monga.
We will not pay shipping costs for returning the radio to us. We will either repair or replace the radio. Please allow at least four weeks for looking at the problem and repairing the radio. If you have not heard from us within six weeks, call our customer service department at 1-800-123.
Radios that are returned to us for problems other than a problem of materials will be subject to service fee as well as the cost of the repairs. Customers will be informed of the charge by postcard. Radios will not be returned to customers until these fees are paid.
Directions
Please read all directions before using it.
Please note that this radio is designed and built to operate well in a damp environment. The self-contained batteries and circuits (线路) are contained in the enclosed space that will bear heat and humidity.
To Operate the Radio
1. Put two AA batteries in the enclosed space at the back of the radio. Be certain to follow the diagram, or the batteries will not provide electricity. The radio should NOT be adapted in order to be fixed into the wall; this will damage the waterproofing (防水).
2. Turn the POWER dial in a clockwise direction until it clicks. Continue turning the dial until the desired volume is achieved.
3. To find the desired station, press the station selector button. The tuner (调谐器) will automatically go to the next highest signal. The station’s call number will be visible in the digital screen. When the station with the highest frequency has been reached, the selector will start again at the lowest frequency.
4. To switch between AM and FM stations, move the sliding AM/FM switch.
To Operate the Timer
1. Press the Timer Set button. Each time the button is pressed, five minutes will be put on the timer. The amount of time on the timer will be visible for five seconds on the digital screen.
2. When the time on the timer doesn’t work, a beep will sound for ten seconds. The timer may be reset again one minute.
Troubleshooting
Before returning the radio for service, please check the following items:
Problem: Radio cannot be heard.
1. Check batteries to be certain that they still have power and are put in correctly.
2. Check Power/Volume Control.
Problem: Timer does not work.
1. Check batteries to be certain that they still have power and are put in correctly.
2. Follow directions above for setting timer.
3. Turn the power control on. The timer will not work when the radio is not on.
4. Adjust the volume control which regulates the volume of the beep as well as the radio volume.
【小题1】The digital screen will show both ______.

A．the volume level and the AM/FM indicator

B．the AM/FM indicator and the radio station

C．the time remaining on the timer and the date

D．the call number and time on the timer

【小题2】Which of the following is covered within this text?

A．How to operate the radio and the timer.

B．What other owners say about the radio.

C．Who will benefit from using the radio.

D．Where to purchase the radio.

【小题3】What question might a reader still have about this product?

A．How can I know the service fee?

B．Where should I send a nonworking radio?

C．How is the radio placed in the shower?

D．What kind of batteries does the radio use?

【小题4】According to the text, what should you do before returning the radio for service?

A．Contact the store where you purchased it.

B．Check whether certain problems exist.

C．Call the producer for a repair number.

D．Consult the telephone book for local repair service.

一Make sure you read the directions before using the software.

— .

A. Had it B. Made it C. Got it D. Heard it

You are enjoying the beautiful scenery in a quiet place, but suddenly the peace and quiet is interrupted（打断）by the noisy sound of a cellphone(手机)! Cellphones are everywhere, and some people don’t know what the limits of cellphone use are.

For me, it’s just a matter of education, good manners, and common sense. If I go to a beautiful place, it is because I want to enjoy nature. I can do it, but without bothering (打扰) other people.

Nowadays, that’s the biggest problem. People disturb other people, first with the ringing of their cellphones and then with their conversations because they usually speak very loudly. Not everybody in a public place should have to listen to private conversations (私人谈话). Even more annoying, you hear just one part of the conversation.

People need to learn how to use cellphones correctly. If there is an emergency (紧急情况)，cellphones are acceptable, but remember that just a few years ago few people had cellphones and the whole society survived!

But again, not everybody wants to listen to other people’s private conversations. It’s like smoking. People don’t want to be bothered by smokers. Our society has to learn to respect other people.

Sometimes when you are talking to someone, that person interrupts the conversation because of a cellphone call, without saying “I’m sorry.” That is bad manners. They don’t know how to respect other people. It’s just common sense! But our society is sometimes so “common senseless!” So, we have to write some rules to prohibit（禁止）cellphone use in some places.

1.What could be the best title for the passage?

A. Cellphone Manners Are a Must B. How to Use Cellphones

C. Don’t Disturb Others D. The Popularity (流行) of Cellphones

2.According to the author, what is the biggest problem nowadays?

A. People are disturbed by those who use cellphones.

B. People can’t hear the other part of the conversation.

C. Private conversations are carried out on cellphones.

D. Not everyone uses a cellphone in public places.

3.By saying “People don’t want to be bothered by smokers” (Para. 5), the author really means _____.

A. smoking also does harm to other people’s health

B. people don’t want to listen to others talk

C. people don’t want to be bothered by cellphone talkers

D. some people don’t want others to smoke

4.Which of the following is NOT true according to the passage?

A. If we interrupt the conversation with a cellphone call, we should say sorry.

B. Some of the cellphone users don’t have good manners.

C. Before using cellphones, we must know how to respect others.

D. People who use cellphones are not interested in beautiful scenery at all.

It’s 10:30 p.m., and 11-year-old Brandon Blanco is sound asleep at home. Suddenly, a loud noise wakes him up. Naturally, Brandon reaches for his cell phone. He blinks twice, and the message on the screen becomes clear: “R U awake?”
But the late-night text does not annoy Brandon. He gets frequent messages and calls, even after bedtime. And he can’t imagine life without them. “If I didn’t have a cell phone, I wouldn’t be able to talk to my friends or family as often,” he told the Kaiser Family Foundation.
Brandon’s use of technology doesn’t stop there. He also has a computer, a TV and three video-game consoles（控制台）in his room. With so many devices, it is no surprise that when he is not at school, he spends nearly every waking minute using one or more of these devices. Brandon is hardly alone. According to a recent study by TFK, kids aged 8 to 18 are spending more time than ever before using electronic devices. How much time? More than seven and a half hours a day on average, the study found. That’s about an hour more than just five years ago.
The jump is the result of a huge explosion in mobile devices, says Victoria Rideout, the lead author of the study. “These devices have opened up many more opportunities for young people to use media, whether it’s on the bus, on the way to school or waiting in line at the pizza parlor,” says Rideout.
Often, kids multitask, or use more than one device at a time. “If you’ve got a chance to do something on your computer and take a phone call and have the TV on in the background, why not?” Media expert Cheryl Olson says. Most experts agree technology has much to offer kids. But some worry the kids could be missing out on other activities like playing outside or hanging out with friends. “It’s a matter of balance,” says Olson.
Multitasking while doing homework is another concern. Some kids listen to music, watch TV or use the phone while doing their homework. “It’s important to make sure that you can stop and concentrate on one thing deeply,” says Rideout.
With new and exciting devices hitting stores every year, keeping technology use in check is more important than ever. “Kids should try,” adds Rideout. “But parents might have to step in sometimes.”

1.
It can be learned from the text that _________.
1. A.
  many teenagers lack friends in their middle school
2. B.
  kids have too many electronic devices to choose from
3. C.
  Brandon feels annoyed about his late-night message
4. D.
  Olson is against teenagers’ using mobile phones
2.
Which of the following is an example of multitasking?
1. A.
  Watching TV when using the computer.
2. B.
  Talking on the phone when lying on the sofa.
3. C.
  Playing video games after having lunch.
4. D.
  Listening to loud music while relaxing.
3.
The underlined phrase “in check” in the last paragraph can be replaced by _________.
1. A.
  in order
2. B.
  in store
3. C.
  in control
4. D.
  in sight
4.
According to the text, Victoria Rideout would probably agree that kids should ______.
1. A.
  do homework while watching TV
2. B.
  have less homework
3. C.
  spend more time on homework
4. D.
  do homework in a place without disturbance

Before using the machine, you must ________ carefully to these instructions．

It can be learned from the text that _________.

Which of the following is an example of multitasking?

The underlined phrase “in check” in the last paragraph can be replaced by _________.

According to the text, Victoria Rideout would probably agree that kids should ______.

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