My brother ________ in America for two months. We all miss him very much.

A.studies B.studied C.has studied D.was studying

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：2020年北京市大興區(qū)中考一模英語試卷 題型：單選題

The things I ordered online ________ yesterday.

A.were delivered B.are delivered C.delivered D.delivers

查看答案和解析>>

科目：初中英語 來源：2020年天津市畢業(yè)生學(xué)業(yè)考試模擬（一模）英語試卷 題型：閱讀單選

Artificial intelligence（AI）（人工智能）is the ability of a computer program 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（提出）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 computer programs. They can learn, solve problems, and think logically（邏輯地）. At present, we use the term AI for successfully understanding human speech, recognizing（識別）human faces, operating self-driving cars and competing in some game systems like playing Chess. However, some people also consider AI a danger to humans if it develops too quickly. Professor Stephen Hawking（霍金）, a famous British scientist 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（設(shè)計(jì)者）in the future. We need not only bright students, but also average（普通的）students. As for（對于）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（有感情的）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 has been around for only 60 years

D.AI works in the same way as people

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

A.Understand human speech. B.Operate self-driving cars.

C.Compete in some game systems. D.Understand human feelings.

3.The underlined word "it" in Paragraph 2 refers to __________.

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

4.According to the passage, if students want to become successful AI designers, they should learn ____________well.

A.math and art B.art and technology

C.math and computer science D.art and computer science

5.Paragraph 4 mainly tells us the scientists'_____________ about AI.

A.wishes B.worries C.feelings D.discoveries

查看答案和解析>>

科目：初中英語 來源：2020年天津市畢業(yè)生學(xué)業(yè)考試模擬（一模）英語試卷 題型：單選題

They have eight people in the team.___________ eight of them all know only good teamwork will enable them to get the job done ___________ time.

A.The; in B./; on C.The; on D./; in

查看答案和解析>>

科目：初中英語 來源：2020年北京市燕山區(qū)中考一模英語試卷 題型：閱讀單選

Staying Fit While Indoors

During this special time, it's a good idea to do some indoor exercises. Exercising has many benefits. Here are some great ideas to get you started!

Run in place. Start by kicking your feet behind you as you run. Then, bring your knees up as high as possible when you feel like you've warmed up. Start by running in place for five minutes. Then, try to run in place for ten minutes.

Do push-ups to build up your upper body. Begin by getting into a plank position (平板式). Then, bend (彎曲) your elbows and lower yourself toward the floor but do not touch the floor. Start by doing a set of 10, and work your way up to three or four sets.

Work on mountain climbers. Start by getting into a standard push-up position. Then, bring your left knee to your chest, keeping your arms in place. Replace your left leg and bring your right knee to your chest. Continue to turn legs. Repeat this three times for 30 seconds each set.

Try jumping jacks. Stand with your feet together and your arms at your side. Then, jump and stretch your arms and feet. Start by doing three sets of 10. Increase the amount (數(shù)量) of jumping jacks you do when you feel ready.

1.Which is the right way to start running in place?

A.By getting into a plank position. B.By kicking your feet behind you.

C.By standing with your feet together. D.By getting into a standard push-up position.

2.Which exercise mainly builds up your upper body?

A.Push-ups. B.Jumping jacks. C.Run in place. D.Mountain climbers.

3.According to the text, how many jumping jacks should you start doing?

A.Two sets of 10. B.Two sets of 20. C.Three sets of 10. D.Three sets of 20.

查看答案和解析>>

科目：初中英語 來源：2020年北京市燕山區(qū)中考一模英語試卷 題型：單選題

— Mum, ________ I stay at home all day?

— No, you needn't.

A.must B.should C.need D.can

查看答案和解析>>

科目：初中英語 來源：湖南省2018-2019學(xué)年八年級上學(xué)期第三次月考英語試卷 題型：補(bǔ)全短文5選4

Why is making goals(目標(biāo)) important? Because goals can help you do, be, and experience (經(jīng)歷) everything you want in life. Goals are able to make your dreams happen.

Successful people predict how their life should be and make lots of goals. By making goals you are taking control(控制) of your life. 1.Think of it this way. There are two drivers. One has a destination( 目的地) in mind and she can find it on a map. She can drive straight there without any wasted(浪費(fèi)的) time or wrong turns. 2. She gets started at the same time from the same place as the first driver, but she drives around, never getting anywhere. Which driver do you want be?

3. They decided what they want in life and then get there by making plans.

Goals aren’t difficult to make, and they aren’t difficult to reach. The biggest difficulty comes from yourself. It’s up to you to find out what your goals really are. 4. Study shows that when we write a goal down, we will be able to achieve it more easily. Why not make your goals and try hard to make your life more colorful?

A.You are the one who should be responsible(負(fù)責(zé)的) for your life.

B.This kind of thoughts stops you from reaching your goals.

C.Winners in life make goals and follow through on them.

D.The other driver has no goal.

E.It’s like having a map to show you where you want to go.

查看答案和解析>>

科目：初中英語 來源：湖南省長沙市集團(tuán)2019-2020學(xué)年七年級下學(xué)期期中英語試卷 題型：語篇翻譯

My name is Peter Green. I like taking a walk in the park. It’s raining outside. I can see the beautiful scenery. Taking a walk in the park on rainy days is one of my favorite things to do. Near the park is a national zoo. Suddenly, I see a little elephant. Elephants are smart animals. They

can play soccer or music. They can also draw very well. 但是大象正處于極大的危險(xiǎn)當(dāng)中。Today there are only about 300 wild elephants in China. We must save the trees and not buy things made of ivory.

I like music too.放學(xué)回家，我總是先彈鋼琴。I want to be a musician in the future. I hope to teach kids in poor villages to sing. I think my dream can come true with hard work.

1.___________________________________________

2.___________________________________________

3.___________________________________________

4.___________________________________________

5.____________________________________________

查看答案和解析>>

科目：初中英語 來源：湖北省美加分校2019-2020學(xué)年八年級下學(xué)期6月月考英語試卷 題型：劃線部分提問

Tina has been in China since 2000. (對劃線部分提問)

________________________________________________________________________________________________________________________

查看答案和解析>>

同步練習(xí)冊答案