Put an ice cube from your fridge into a glass of water. You have a piece of string(线) 10 centimeters long. The problem is to take out that piece of ice with the help of the string. But you must not touch the ice with your fingers.
You may ask your friends to try to do that when you are having dinner together. There is a saltcellar on the table. You must use salt when you carry out this experiment.
First you put the string across the piece of ice. Then put some salt on the ice. Salt makes ice melt(融化). The ice round the string will begin to melt. But when it melts, it will lose heat. The cold ice cube will make the salt water freeze again. After a minute or two you may raise the piece of string and with it you will raise your piece of ice!
This experiment can be very useful to you. If, for example, there is ice near the door of your house, you must use very much salt to melt all the ice. If you don’t put enough salt, the water will freeze again.
【小题1】 We must use _______ when we carry out this experiment.

A.fridge B.some foodC.a table D.some salt
【小题2】 How long will it take to carry out this experiment?
A.More than three minutes.B.Five minutes or so.
C.Only one minute or two.D.About ten minutes.
【小题3】What is the task of this experiment?
A.Put the ice cube into the glass of water with the help of the string.
B.Take out the ice cube in the glass of water with the help of the string.
C.Take out the ice cube in the glass of water with your fingers.
D.Put some salt on the ice cube and then put the string across it.
【小题4】How many things at least are used in this experiment?
A.Three. B.Four. C.Six.D.Seven.
【小题5】We can learn something about _______ from the passage.
A.physics B.biologyC.chemistryD.maths

Worried about how many calories you will get in that piece of pizza, chocolate cake or bag of chips? A new iphone application Mealsnap may help. Users just need to take a picture of the meal with the phone, and it will give a calorie read-out almost immediately.
Mealsnap was developed by DailyBurn, a health social network that focuses on helping its users lead healthier lifestyles. It has created several other health and diet-related iphone applications. The applications gives users a quick reply. To do that, it matches the taken picture to a databank containing the calorie information of nearly 500,000 kinds of food. Users then get the range of calories for the meal that is photographed.
We started with something simple — an apple. A couple of minutes later the application replied that it was an apple and between 64 and 96 calories. More impressive was the reply we received after sending a photo of mixed salad bowl. Mealsnap replied that the bowl contained “yellow rice with corn, boiled eggs and beans” and that the food was between 532 and 798 calories.
Mr. Smith, director of DailyBurn, said that usual calorie counting needed a long time, but that the application made it easier to know the calories in food. That’s why it is so popular among those who are trying hard to lose weight.
In addition, Mealsnap can serve as a food diary. No need to write down what they’ve eaten, the photos will be stored. Then users can keep a visual log (记录). Mr. Smith said: “It’s like a food journal, but easier. All you do is to take the picture. The simple act of recording something can cause a psychological change that can help people on their health journey. Knowing the calorie range makes me think more about what I’m eating.
60. 【小题1】The purpose of DailyBurn is to _______.

A.help people have a healthy life
B.make iphone more popular
C.help people find ways to lose weight
D.persuade people to buy iphone products
61. 【小题2】 We can know from the passage that Mealsnap is ________.
A.a cameraB.a phoneC.a calculatorD.an application
62. 【小题3】What can be learned from the third paragraph?
A.Mealsnap can also tell what the food is.
B.Mealsnap is only useful for simple things.
C.The result of Mealsnap isn’t always right.
D.Mealsnap needs a long time to show the calorie range.
63. 【小题4】Which would be the best title for the passage?
A.Mealsnap iphones work as a health signal
B.Mealsnap iphones offer you a health signal
C.Mealsnap iphones — the best-selling phones
D.Mealsnap iphones count your calories

Having one of those days – or weeks – when everything seems to annoy you? Even if you do nothing about it, your bad mood will probably go away after some time. But with a little effort, you can forget it much faster – often within a day or two.

◇Walk it off

Exercise is the most popular bad-mood buster. A person who’s in a bad mood has low energy and high tension. Taking a fast ten-minute walk, or doing some quick exercises can do wonders towards changing that bad mood.

◇Tune it out

Listening to your favorite music for a while can also make tension go away quickly, because music starts associations with past positive experiences we’ve had.

◇Give yourself a pep talk

Stop and listen to what’s on your mind. Bad moods are often started by too many negative thoughts. Write them all down on paper, the pessimistic messages you’ve been giving yourself and then give optimistic answers. ( “I still don’t have a job.” Vs “I have two interviews next week.”)

◇Reduce your stress

Relaxation techniques are wonderful mood-lifters. These include deep breathing, stretching and visualizing, all of which sound complicated but aren’t. One easy way to visualize: close your eyes and picture a favorite place, such as the beach. Another simple way to be against distress is to make a to-do list. One reason for being in a bad mood is feeling you have no options. By taking control over certain areas, you realize you’re not helpless. You can make changes in your mood and life.

◇Avoid things that won’t improve your mood.

TV may not help much: You need to increase your energy level and stimulate(刺激) your mind – something that the TV show “Neighbors” won’t do. And before you reach for that piece of cake and coffee, think about how mood and food are linked. Sugar and caffeine contribute to depressed moods. A better choice? Research shows that carbohydrates, such as potatoes and pasta(面食),produce a calming effect in people who have a desire for them.

1.Which of the following may help us stop a bad mood?

A.Doing nothing about it.                B.Exercising and enjoying music.

C.Writing down negative thoughts.          D.Talking about it with neighbors.

2.Why is it suggested that you close your eyes and picture the beach?

A.It helps remove bad mood.     B.It brings us a new technique.

C.It is not complicated to do so.      D.It is an area to be easily controlled.

3.TV may not improve your mood because it     .

A.shows what happens around you             B.does not energize you

C.reminds you of eating and drinking      D.produces a calming effect

4.Which would be the best title for this passage?

A.Energy Level and Stress       B.How to Beat a Bad Mood

C.Bad Mood and Our Life        D.How to Control Your Feeling.

 

Having one of those days—or weeks—when everything seems to annoy you? Even if you do nothing about it, your bad mood(心情) will probably go away after some time. But with a little effort, you can forget it much faster—often within a day or two.

    Walk it off

     Exercise is the most popular bad ­mood buster. A person who's in a bad mood has low energy and high tension. Taking a fast ten­-minute walk, or doing some quick  exercises can do wonders towards changing the bad mood.

Tune it out

Listening to your favorite music for a while can also make tension go away quickly, because music starts connection with past positive experiences we've had.

Give yourself a pep talk

    Stop and listen to what's on your mind. Bad moods are often started by too many negative thoughts. Write them all down on paper, the pessimistic(悲观的) messages you've been giving yourself, and then give optimistic answers. (“I still don't have a job.” vs “I have two interviews next week.”)

Reduce your stress

Relaxation techniques are wonderful mood­lifters. These include deep breathing, stretching and visualizing(想像), all of which sound complicated(复杂的) but aren't. One easy way to visualize: close your eyes and picture a favorite place, such as the beach. Another simple way to distress is to make a to­do list. One reason for being in a bad mood is feeling you have no options. By taking control over certain areas,  you realize you're not helpless. You can make changes in your mood and life.

Avoid things that won't improve your mood

TV may not help much: you need to increase your energy level and stimulate(刺激) your mind—something that the TV show “Neighbors” won't do. And before you reach for that piece of cake and coffee, think about how mood and food are linked. Sugar and caffeine contribute to depressed moods. The better choice? Research shows that carbohydrates, such as potatoes and pasta(面食), produce calming effects in people who have a desire for them.

1.Which of the following may help us stop a bad mood?

A. Doing nothing about it           B. Exercising and enjoying music.

C.Writing down negative thoughts    D.Talking about it with neighbors.

2.Why is it suggested that you close your eyes and picture the beach?

A. It helps remove bad mood.         B. It brings us a new technique.

C. It is not complicated to do so.       D. It is an area to be easily controlled.

3.TV may not improve your mood because it _____________.

A. shows what happens around you       B. does not energize you

C. reminds you of eating and drinking     D. produces a calming effect

4.Which would be the best title for this passage?

A. Energy Level and Stress       B. How to Beat a Bad Mood

C. Bad Mood and Our Life       D. How to Control Your Feeling

 

 

Put an ice cube from your fridge into a glass of water. You have a piece of string(线) 10 centimeters long. The problem is to take out that piece of ice with the help of the string. But you must not touch the ice with your fingers.

You may ask your friends to try to do that when you are having dinner together. There is a saltcellar on the table. You must use salt when you carry out this experiment.

First you put the string across the piece of ice. Then put some salt on the ice. Salt makes ice melt(融化). The ice round the string will begin to melt. But when it melts, it will lose heat. The cold ice cube will make the salt water freeze again.

After a minute or two you may raise the piece of string and with it you will raise your piece of ice!

This experiment can be very useful to you. If, for example, there is ice near the door of your house, you must use very much salt to melt all the ice. If you don’t put enough salt, the water will freeze again.

61. We must use _______ when we carry out this experiment.

A. fridge             B. some food                   C. a table     D. some salt

62. How long will it take to carry out this experiment?

A. More than three minutes.           B. Five minutes or so.

C. Only one minute or two.               D. About ten minutes.

63. What is the task of this experiment?

A. Put the ice cube into the glass of water with the help of the string.

B. Take out the ice cube in the glass of water with the help of the string.

C. Take out the ice cube in the glass of water with your fingers.

D. Put some salt on the ice cube and then put the string across it.

64. How many things at least are used in this experiment?

A. Three.              B. Four.                    C. Six.                  D. Seven.

65. We can learn something about _______ from the passage.

A. physics          B. biology         C. chemistry        D. maths

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网