Artificial intelligence( 人工智能) is the ability of a computer or a machine. The computer or the machine with AI can think and learn. It is also a field of study that tries to make computers "smart". John McCarthy, a scientist, came up with the name "artificial intelligence " over 60 years ago. Many things such as learning and problem solving can be done by computers, though not in the same way as people do.

An unusual goal of AI research is to create special computer programs. They can learn, solve problems and think logically( 合乎逻辑地). At present, AI can successfully understand human speech, recognize( 识别) human faces, operate self-driving cars and compete in some game systems like playing chess. However, some people consider AI a danger to humans if it develops too quickly. A famous British scientist also was not for this kind of technology.

Math is the basic language of AI. If students are good at math, they will be more likely to become successful AI designers in the future. We need not only bright students but average(普通的) students. As for average students, if they get enough math skills, they can also become successful AI designers. Besides, a good knowledge of computer science is also necessary for AI designing.

Scientists hope to create creative and emotional(有情感的) AI. The AI can possibly understand human feelings or create art. Many ways and tools have been tried to discover this wide and exciting field.

【1】From paragraph 1, we know that_

A.all problems can be solved by computers

B.machines with AI can think and learn.

C.AI works the same way as people do

【2】According to the passage, what can't AI do at present?

A.Understand human speech.B.Compete in some game systems

C.Understand human feelings

【3】The underlined word. "it" in paragraph 2 refers to

A.the danger.B.a scientist.C.AI

【4】According to the passage, if students want to become successful AI designers, they should learn_______ well.

A.math and artB.art and computer science.C.math and computer science

【5】Paragraph 4 mainly tells us the scientists' _______about AI.

A.wishesB.worriesC.feelings

There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn't eat too much meat.

People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk. Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.

Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It's bad for people's health. So it's our duty to make everyone full and make everyone healthy.

根据短文内容，选择正确答案。

【1】_______ know a lot about food according to the passage.

A.FarmersB.CooksC.Scientists

【2】Scientists think the most important thing about food is

A.when to eatB.what to eatC.how often to eat

【3】Which of the following statements (陈述) is NOT true?

A.All the people in the world have enough food to eat.

B.Many people are eating unhealthy food.

C.Everyone is needed to help solve the two problems.

【4】______is not good for our health.

A.Potato chipsB.BreadC.Milk

【5】We may read this passage in

A.a letterB.a storyC.a health magazine

Shanghai started a new garbage-sorting (垃圾分类)program in July this year. People are always asking“which is the right bin(垃圾箱) for my garbage?" They need to put different kinds of garbage into different bins. Other cities in China will do the same soon.

Why is garbage sorting a big problem?

It's because there is too much garbage these days. It's bad for our soil, air and water. Actually, we can make use of some garbage again. And first, we need to sort our garbage. For example, if you put an battery(电池) into the“harmful waste(有害垃圾)”bin, people can use it to make new batteries. But if you don't, the battery will be somewhere else. It will be bad for the environment. Many people may not know how to sort it in a right way. China's tech companies are working hard to solve this problem. For example, if you want to know which bin your milk box should go in, you can just open a mini app(小程序) in WeChat or Ali pay and look for“wet wipes". The app will give you the answer right away. Maybe you can just take a photo of the garbage and then you will know which bin you should put it into.

The future of garbage-sorting looks good. But it's not the best way. The best thing we can do is to make less garbage in the first place.

根据短文内容，回答问题。

【1】When did the new garbage-sorting program start in Shanghai?

____________________________________ .

【2】What do people need to do for this program?

_______________________________________ .

【3】Why is garbage-sorting a big problem?

_______________________________________ .

【4】Do all people know how to sort garbage in a right way?

_______________________________________ .

【5】What is the best thing we can do ?

_______________________________________ .

Chinese food has been enjoyed in Western countries for a long time. To_______local people's tastes, Chinese restaurants have made some changes to the_________.Unlike Chinese, Australian people don't like to eat meat with the bone_________so Chinese restaurants there provide big pieces of meat without bones,_________ for fish.

Some Chinese brands are also becoming more_______. In many cities in Europe, stores sell TCL televisions, Haier fridges and LenOvo computer. And more than half of US-owned drones (无人机)are Chinese models. They're not simply made in China, but designed and developed in the_________. In the past, most Western people thought Chinese products were cheap and not dependable. But now, things have changed greatly. “Made in China" becomes cool.

More and more people________ Chinese brands.

【1】A.for funB.at workC.on sale

【2】A.similarB.commonC.unusual

【3】A.storedB.receivedC.accepted

【4】A.copyB.meetC.spread

【5】A.kitchensB.servicesC.dishes

【6】A.upB.inC.on

【7】A.evenB.stillC.just

【8】A.practicalB.traditionalC.popular

【9】A.countryB.fieldC.town

【10】A.sellB.trustC.improve

【1】Jill’s gone to the office.(改为一般疑问句）

____Jill_____ to the office?

【2】He speaks very good English.(改为感叹句）

____ ____ he speaks English!

【3】They went to the supermarket to buy some fruit yesterday.(对划线部分提问）

____ ____ they go to the supermarket yesterday?

【4】“What have you learned in the university?” The manager asked Tom.(改为宾语从句)

The manager asked Tom ___he____learned in the university.

【5】He is not tall and not short.(保持句意基本不变）

He is of______.

【6】Damin pushes the birds into the water with the pole every day.(改为被动语态）

The birds ____ ____into the water with the pole by Damin every day.

【7】collect， enables, various, to, the Internet, teenagers, information (连词成句)

__________________.

【1】A survey shows work six hours on average on weekdays. (German)

【2】He was excited that amazing performance in the game attracted people’s attention. (he)

【3】We still need more assistants for the teen center library. (second).

【4】My father told me that he was tired because of the of the lecture. (long)

【5】In years, Alipay has become more and more popular all over the world. (recently)

【6】Hardworking children are more likely to in the future. (success)

【7】Are the doors locked? (secure)

【8】To live happily, please close the door on experiences in your memory. (happy)

The Great Barrier Reef is important to Australian people. It's an amazing 【1】 (奇观) in the world. That's why people are really interested to visit it.

The Aboriginal people were the first pioneers to take(an) 【2】 (冒险) in the area. They are considered the traditional owners of the Great Barrier Reef and have lived there for 【3】 (千)of years. Today, the Aboriginal people mainly go fishing for business. In order to 【4】 (保护) the reef against overfishing, people built the Great Barrier Marine Park. The park 【5】 (分开) into different parts. Different activities are allowed in different areas.

If you want to travel 【6】 (到国外), the Great Barrier Reef is good choice. You can go surfing in the sea or take an airplane to see the 【7】 (整个的) area from above. The best time to visit it is from May to 【8】(九月 ) . It is neither too hot nor too cold during this period of the year, and the air is always 【9】 (新鲜的) . Every year, millions of people from European-and 【10】 (亚洲的) countries visit it. It’s a magic land on Earth.

he lazy apologize among passenger

【1】_________all the cities in Britain, I only visited London before.

【2】Now ______ are not allowed to eat or drink on the bus.

【3】Linda always _______ to others honestly whenever she makes mistakes.

【4】Nick' 's parents have gone on business, so he has to cook meals for ______.

【5】John is one of ______ students in his class, and he hardly does his homework.

Gratitude is selfless act. It helps you to learn to be empathetic. If you always know the goodness in life and give thanks to others it will be easier for you to find out the needs of others and to offer help whenever you can. Being empathetic to others' opinions and experiences will make you a better parent and friend.

Your health condition will be improved if you are always thankful for the people and things around you. According to Robert Emmons, a leading researcher, thankful people always feel healthier, both mentally and physically. Those who are thankful are 25% happier than those who aren't.

Gratitude is also a useful tool to form better relationships with friends, family members and so on. People who express their gratitude always prefer to forgive others and therefore are able to create long-lasting relationships.

The old saying goes "It's never too late to say you're sorry," but the same is true of gratitude. Take the time to thank people for their work or kindness-whether it was today, last month or many years ago. Practicing gratitude doesn't take much time, and it will make you happier and healthier. And that's a gift worth celebrating 365 days a year.

【1】How many ways of practicing gratitude are mentioned in the passage?

A.ThreeB.FourC.FiveD.Six

【2】According to the writer, if people always give thanks to others, they will .

A.get help whenever they need itB.have the same experiences with others

C.think for others and help them in timeD.talk about the kindness they give others

【3】From the passage, we know that .

A.thankful people will be happy every day in life

B.the best way to give thanks is saying"thank you

C.friendship will last longer if people often give thanks

D.people should spend a long time giving thanks every day

【4】The main purpose of the passage is to .

A.encourage us to practice gratitudeB.help us receive more gratitude

C.show us how to practice gratitudeD.tell us when to practice gratitude

Rosa and Sue were best friends. They rode the school bus together, attended lessons together and even went to the same summer camp. They did _______ together most of the time. Sometimes, though, when Sue was with other friends, she no longer_______Rosa or didn't act like a friend.

Today was one of those times.

"Sorry. I'm already going to the _______ with Toni and Lucy," she smiled, but it wasn't her nice smile. She walked away to _______ Toni and Lucy. They talked and laughed happily. How Rosa wanted to play with Sue, _______ Sue seemed to have already forgotten about her. Rosa was left standing there, feeling _______ .

Then she saw Kiara, the new girl. Rosa went to greet her with a smile. Then Kiara smiled back Rosa tried not to check if Sue _______ them. I hope she feels left out, Rosa thought.

The next morning, when Rosa got on the bus, Sue was waiting in their _______ seat. Sue quickly moved her schoolbag off the seat to make _______ for Rosa. But Rosa didn't take the same seat as before. She walked ________ Sue and slid into the empty seat next to Kiara. How does it feel now? Rosa thought.

On the bus ride, Rosa and Kiara talked a lot about ________ they were interested in-about dancing and even about swimming.

When they stepped off the bus, Sue asked Rosa, "Did you still want to go swimming tonight?"

Here's my ________ to fight back, Rosa thought, "I'm already going with Kiara, she smiled. Somehow she knew it wasn't her nice smile.

Sue nodded and looked at her feet ________ .

Rosa's heart sank and her face began to burn.

Why don't I feel happy? To see Sue's sad face is what I have ________, isn't it? Rosa thought. It didn't feel good at all.um she said instead, “maybe we could all go together.”

Sue's face became ________ "I'd like that."

Rosa smiled. "Kiara, meet my friend Sue."

【1】A.nothingB.anythingC.somethingD.everything

【2】A.took pride inB.kept away fromC.paid attention toD.had trouble with

【3】A.poolB.campC.stationD.classroom

【4】A.joinB.replyC.inviteD.replace

【5】A.soB.orC.andD.but

【6】A.tiredB.boredC.nervousD.lonely

【7】A.missedB.noticedC.changedD.compared

【8】A.newB.softC.cleanD.usual

【9】A.roomB.plansC.moneyD.decisions

【10】A.toB.withC.pastD.after

【11】A.whoB.whyC.whatD.where

【12span>】A.chanceB.reasonC.secretD.opinion

【13】A.rudelyB.silentlyC.angrilyD.carelessly

【14】A.failedB.wantedC.acceptedD.remembered

【15】A.calmB.paleC.brightD.worried