If you really want to see that number on weight loss, what you put in your mouth matters most. People who simply cut calories to lose weight lose about 2 pounds a week, says a study in the International Journal of Obesity and Related Metabolic Disorders. At the same time, people who exercise but don't cut calories drop less than half a pound each week.
Why doesn't the physical activity produce the same pound-dropping results as calories cut? One thought is that though exercise burns calories, it doesn't increase your metabolism (新陈代谢), says a study in Obesity Reviews. It doesn't prevent your metabolism from slowing as you lose pounds. As you slim down - through any method - your metabolism slows with your weight loss and exercising doesn't keep that from happening. As you lose weight, you burn fewer calories through exercise. For example, a 150-pound person who exercises for 30 minutes burns about 306 calories. After losing 10 pounds, that person will burn about 286 calories doing the same exercise. So to burn 306 calories, you need to extend (扩大) your exercise.
A research shows people who diet and exercise for weight loss drop the same amount of weight as people who have a balanced diet. They are, however, more successful keeping the weight off than their counterparts (相当的人) who simply eat less.
| A．If you want to put on weight, you should eat more. |
| B．If you want to lose weight, you should eat more. |
| C．If you want to lose weight, you should have a balance diet. |
| D．If you want to lose weight, you should exercise more. |
| A．Because it doesn't increase metabolism. |
| B．Because it doesn't burn calories. |
| C．Because it bums less calories than calories cut. |
| D．Because calories cut slows metabolism. |
| A．Diet. | B．Exercise. |
| C．The calorie. | D．Metabolism. |
| A．The physical activity is the most useful to lose weight. |
| B．As you lose weight, you bum more calories through exercise. |
| C．Doing exercises has the same effect with diet. |
| D．People who exercise but don't cut calories will lose less weight. |
| A．How to lose weight. |
| B．How to diet. |
| C．People who like sports can easily lose weight. |
| D．People who have a balanced diet can lose weight easily. |
Brooke wanted a dollhouse and some sugar cookies． So the 6﹣year﹣old asked Alexa to get them． Alexa wasn't her mom or babysitter． It was a voice﹣activated home assistant powered by AI（人工智能）．And it made Brooke's wishes come true． A few days later， much to her parents' surprise， a﹩170 dollhouse and four pounds of cookies showed up． They ate the cookies and gave away the dollhouse to a local hospital．And that's not the end of the story． When a news reporter told the story of what happened on TV， Alexa devices（设备）in many listeners' homes woke up and tried to order dollhouses!
Alexa isn't the only AI willing to serve you． Apple HomePod has Siri， Google Home has its Assistant， and the upcoming Galaxy Home device will have Bixby． People who
have these devices use them mainly for listening to music， checking the weather， and setting timers． According to a report from The Information， nowadays voice shopping is rare． But many scientists predict
a boom（增长）in voice shopping in the near future． Is that a good thing？
▲． You can shout out an order as soon as you think of it， even if you are cooking，cleaning， or driving． In addition， people with disabilities who are unable to use a keyboard or mouse can shop without any help．
But voice shopping has its disadvantages． Unwanted dollhouses aren't the biggest problem． It's usually very easy to cancel an order or return products． The thing that worries some people is that these assistants are always listening． They have to be able to respond when you want them． So they listen for "Alexa" or "OK Google" or another order． When they hear it， they start recording the conversation． Some have worried about what happens shopping habits？ And what if someone hacks（入侵） the device？ The CIA found a way to hack smart TVs to turn them into spies that listen all the time． Others could do the same with any smart device．
What do you think？ Are you ready to start voice shopping？
（1）From the passage， we know that Alexa ．
A．can look after the baby
B．can cook delicious food
C．is a toy doll sold online
D．is one kind of AI device
（2）The underlined word "rare" in Paragraph 2 probably means ．
A．unusual
B．expensive
C．harmful
D．impossible
（3）Which of the following is the best to fill in the "▲" in Paragraph 3？
A．Convenience is the main advantage of voice shopping
B．The cost of voice shopping is lower than other ways
C．The popularity of voice shopping is increasing
D．The technology of voice shopping needs improving
（4）Paragraph 4 mainly tells us that B when people try voice shopping．
A．AI sometimes forgets people's orders
B．personal information might be hacked
C．It's difficult to cancel or return products
D．the needs for products can't be satisfied
"I am going to the store，Uncle Moti，" Mina said． "Do you want to come along？ You have not seen much of the neighborhood yet．"
Uncle shook his head． "No，thank you，" he said． "It is just too loud and crowded for me． Everyone is always on the go， while I am used to the peace and quiet of our village． I feel afraid out there，like a frightened（害怕的）child． " Mina sat on the sofa next to her uncle． "Tell me about the village，Uncle Moti，" she said． "Would I like it there？"
Uncle laughed． "Without a doubt， you would find it dull at first﹣the loudest sound is usually birdsong． The people I meet on the street are all people I know， and we stop and talk or go to the tea shop and have tea． There are not many shops， but the shopkeepers know all their customers． Everyone is friendly and has a smile for everyone else．"
"Sounds really nice，" Mina said． "But I think maybe it is not different in every way． I really wish you
would come with me， and I could show you why I say that．" Uncle sighed and got up， saying， "All right，Mina，I will go．"
Out on the street， cars zoomed by， some of them honking． Uncle looked very nervous at all the noise and activities，and Mina took his hand．
"Look，" she said，"there is my friend Nate， and coming down the street is my teacher， Ms． Sanchez．" Mina waved to Nate， who waved back， and called hello to her teacher． Then she led her uncle down the street to the store， where she greeted the shopkeeper． "Hi， Ms． Franklin， this is my uncle Moti，who has come here to live．"
"Over here，" Mina took her uncle's arm and led him across the street． A sign over a door read "Navid's Tea Shop．" Uncle smiled． They went in and sat at a table． They ordered tea， and Uncle sighed happily．
"Well，I see what you were trying to show me，" he said． "This neighborhood is your village． Now it will be mine too． It has friends， kind shopkeepers， birds， and even a tea shop…．"
（1）At first， Uncle Moti didn't want to go out with Mina because ．
A．he missed his family in the village
B．he fell very tired after a long journey
C．he didn't get used to the life in Mina's neighborhood
D．people in Mina's neighborhood were unfriendly to him
（2）From the underlined sentences in the passage，we can infer（推断）that Mina is a girl．
A．brave
B．caring
C．creative
D．humorous
（3）The sentence " " in the passage shows that Mina's neighborhood and Uncle's village are similar．
A．I feel afraid out there， like a frightened child．
B．You would find it dull at first﹣the loudest sound is usually birdsong．
C．Out on the street，cars zoomed by，some of them honking．
D．It has friends， kind shopkeepers， birds， and even a tea shop．
（4）The story suggests that Uncle Moti will probably later on．
A．still feel frightened as before
B．start to look for a job in a tea shop
C．be willing to go out in Mina's neighborhood
D．tell people why he came to Mina's neighborhood
STUDY HELP
For many tests and exams， you are tested on your abilities to communicate successfully． In order to speak English fluently， you need to think in English． If you don't， your speech will be slow and it won't sound natural． Here are some things you can do to practice thinking in English．
•Look at objects around your home and school， and think of what they are called in English． Try to make a direct connection between the object and the English word．
•When you are out in a public place， practice describing the things and people you see in your mind． For example， think，"There is a man walking down the street． He's wearing a suit．I think he is going to work．" Try to think in English first， not in your first language．
•When you have to say something in English， think first and ask yourself，" What words and phrases do I know in English that I can use in this situation？" Try not to think in your first language and translate your ideas into English． If you do， you will get frustrated very quickly．
Try these tips and you'll soon find that you are thinking in English．
（1）The passage is most probably written to ．
A．students
B．teachers
C．parents
D．reporters
（2）The writer gives some advice on how to ．
A．greet people in English
B．practice thinking in English
C．write an article in English
D．improve English listening skills
（3）The passage above might be from the column（栏目）in a magazine．
A．News Corner
B．Story Garden
C．Language World
D．Technology Square
（1）阅读下面短文，从方框中所给的A﹣E五个选项中选择正确的选项（其中一项是多余选项）．
|
A． Remember there is hope for everyone! B． Open your eyes and you are ready to go! C． Your mind goes blank! D． Be more silent! E． Well， don't do that! |
Public speaking is one of the top three fears among adults in both the UK and the US． Here are some suggestions that deal with some of the most common problems people experience with public speaking．
Invite the attention in
Do you hate that moment when you stand up in front of a group to speak and everybody looks at you？① ． It's a sign that people are interested and want to hear what you have to say． Welcome those looks!
Beat the brain freeze
Have you ever been in the middle of speaking and suddenly……brain freeze!② ． It is possible that you forgot something for the moment． And you are holding your breath! All you need to do is to trust yourself， clear your mind， focus and breathe． The thoughts will come rushing back to your mind in no time． Phew!
Increase your confidence
Use this exercise to get in touch with the "naturally confident （自信的） you" inside． Close your eyes and remember a special time you felt really relaxed and confident． Imagine the feeling of relaxation rushing through your whole body． It will pass information to your brain that you are confident and happy．③ Whether you are someone who just wants to move from good to great with your speaking， or someone who feels too afraid to stand up and speak， the great news is that you can move forward， be relaxed， and turn into a great speaker．④
（2）Write down another suggestion on how to become a good speaker． （答案不多于5个单词）
To help Japanese companies better deal with the increasing number of foreigners visiting the country， Panasonic has created a megaphone （扩音器） which is able to smartly translate Japanese into English， Chinese and Korean．
Panasonic named the product "Megahonyaku"． It is a term for the Japanese words for "megaphone" and "translate"， which actually makes a lot of sense because it's a megaphone that can translate Japanese into several other languages in real time． When a user speaks Japanese into the megaphone， it recognizes （辨认） and translates what is being said immediately， and outputs the words in English， Chinese or Korean．
It sounds amazing， and seeing it in action is wonderful， but Megahonyaku is not good enough． It cannot translate everything you say， as it only stores 300 common expressions， like "The train has been put off" or "Watch your step"． However， the Japanese company behind Megahonyaku promises to add new expressions regularly， which users can get on the Internet．
The machine was designed to be used in places like transport stations， airports and places of interest where quick and exact announcements are needed most． Around 30 Japanese organizations， including the police and guides， have been trying out Megahonyaku for about one year， but Panasonic says it will come onto the market on December 20th． Instead of selling these speech translators， Panasonic plans on renting （出租） them out for less than ﹩183 a month on a three﹣year agreement，and offering users future improvements and necessary services．
Panasonic has also said that it may add support for other languages，like Russian，depending on customers' needs．Megahonyaku also includes a touch screen that allows users to choose the language they need their speech translated into．
（1）Panasonic has produced Megahonyaku so that ．
A．guides can translate Chinese into Japanesefaster
B．Japanese companies can receive foreigners better
C．foreigners can talk with the Japanese freely
D．the Japanese can learn other languages easily
（2）The third paragraph is mainly about the of Megahonyaku．
A．invention
B．importance
C．disadvantage
D．history
（3）It can be learnt from Paragraph 4that Megahonyaku ．
A．may be popular with the police
B．is widely used in private homes
C．will be sold on December 20th
D．stores about 30foreign languages
（4）According to the passage，Panasonic will in the future．
A．sell Megahonyaku to foreign visitors
B．bring down the price of Megahonyaku
C．change the screen of Megahonyaku
D．improve Megahonyaku regularly
