Some people won’t realize the importance of their friendship ________ they lose it.

A.after B.when C.until D.as

Each time tourists travel to Beijing, they_______ the Forbidden City.

A.will be shown up B.will be shown around

C.will show around D.will show to

—Could you tell me ________ for the pants?

—By paying over the Internet.

A.how much I will pay B.how will I pay

C.how I will pay D.how much will I pay

—I'm sorry I failed in the badminton game, Coach.

—________. You can't win every time. Cheer up and try next match.

A.Never mind B.My pleasure C.You are welcome D.Help yourself

There is always something unexpected in our life. I find it humorous sometimes that even the most ordinary thing can have an _______ on us.

My wife, daughter, and I moved into our home nine years ago and we _______ a lot of time and energy working in the yard to get it look like what it does today. We called this area our "rock garden" because there were so many rocks. We did the best we could to make the yard _______. Then, we started to grow plants and flowers and _______ them carefully.

Last summer I walked to the end of the rock garden and found a tiny little plant that I could not immediately tell what it was. I knew I didn't plant it and Denise said that she didn't _______. We decided to let it continue growing until we could _______ what it was.

Weeks passed and as I made my way back to the mystery (神秘的) plant, I found it grow taller. It appeared to be a Sunflower. As I pulled rocks from the area, I noticed something _______. The Sunflower didn't start where I saw the stalk (茎) begin. It actually began under a big rock and grew under and around it to _______ the sun.

Suddenly I realized something. "_______ a tiny little Sunflower has the ability of overcoming a big rock standing in its way of developing, we also have the ability of doing the same thing. "Like the Sunflower, it knew it had the ability to overcome difficulties.

Stand tall like the Sunflower and take ________in who and what you are and the environment will begin to support you. You will find a way to go under or around big difficulties in order to achieve your goal.

1.A.idea B.opinion C.experience D.influence

2.A.spent B.paid C.took D.cost

3.A.unclean B.tidy C.messy D.dirty

4.A.looked for B.looked after C.looked through D.looked over

5.A.too B.also C.either D.so

6.A.find out B.look out C.put out D.try out

7.A.interesting B.enjoyable C.ordinary D.unusual

8.A.hold B.reach C.catch D.have

9.A.Because B.Although C.If D.But

10.A.praise B.pride C.attention D.advice

In order to prevent the spread of COVID-19. the Ministry of Education has decided to put off the start of the spring term for schools. To make sure that students could keep studying, most schools began to offer online courses for them at home. However, you may met all kinds of difficulties while taking online classes for the first time. I hope you can get some ideas from the following examples of four students who tried to improve their online studies.

1.________ almost drove Zhao Yuchen crazy while studying online.

A.The low voice of his English teacher

B.The poor quality of his Internet connection

C.Too much noise from his family members

D.Planning the course timetable reasonably

2.According to Lin Xiyu, ________ is the key to effective online learning.

A.regular reviewing B.careful note-taking

C.proper time planning D.high quality of Internet connection

3.Zhang Penghui's mother is not allowed to enter his room because he wanted to ________.

A.play games secretly

B.focus on his lessons

C.enjoy his favourite snacks and drinks alone

D.ask her mother to cook for him

4.According to the passage, we can learn that Wang Ruixue ________.

A.thinks it's necessary to have s short break

B.spends too much time on online games

C.doesn't know how to control her time on breaks

D.thinks the Internet is useless for the countryside students

5.The passage is written mainly to ________.

A.explain how important online studying is

B.complain the problems of online studying

C.encourage to improve our English

D.show us how to improve our online studying

Have you ever had dreams about building a robot? Or putting together a spaceship? Or even seeing your face made out of chocolate? Done. All you need is a 3-D printer!

The possibilities of 3-D printing seem endless. All the user has to do is to design(设计) an object on the computer and choose a material(材料) to print in. The printers print in hundreds of different materials including glass, sugar and even skin! When the user presses “print”, the 3-D printer spreads the material layer(层) by layer and like magic the object is produced.

The first 3-D printer was invented in 1986 by an American, Charles Hull. But 3-D printing has only become cheap enough recently for most people to use. Designers now use 3-D printing to create unusual things. The Dutch artist Dirk Vander Kooj prints furniture made from old fridges. And doctors have used 3-D printing to print human body parts! The Telegraph reported in February that scientists from Cornell Medical College even printed a man-made ear.

But like a lot of new technologies, if 3-D printing gets into the wrong hands, it can be dangerous. In 2011 a group of four men in the US used 3-D printing to produce ATM skimmers (提款机盗刷器). These were placed on an ATM and stole over $400,000 from users of the ATM. It is terrible to think thatcriminalslike them might one day use a 3-D printer to print a gun.

But for better or for worse, 3-D printing has been put into use. In a few years, you’ll probably be wondering how you could ever live without your 3-D printer!

1._______ invented the first 3-D printer.

A.Charles Hull B.Dirk Vander Kooj

C.A doctor called Cornell D.Four men in the U.S

2.What is the correct order for people to use a 3-D printer?

a. Choose a proper material.

b. Press the print button.

c. The 3-D printer spreads the material.

d. Use a computer to design an object.

A.a-b-c-d B.d-a-b-c

C.a-c-d-b D.d-c-b-a

3.The underlined word “criminals” in the fourth paragraph might mean ______________ in Chinese.

A.技术员 B.军人 C.罪犯 D.用户

4.According to the passage, people have NOT yet produced _________ with a 3-D printer.

A.some furniture B.a man-made ear

C.ATM skimmers D.a gun

5.What does the writer think of the 3-D printer?

A.It is necessary only for our work.

B.It is helpful but dangerous.

C.It is too expensive for most people.

D.It is useless in our daily life.

Has anyone ever told you that eating carrots will help you see in the dark?

This is just one of many incorrect beliefs you may have heard. Below, we have picked out scientific explanations for three mistakes that people make about their eyes. Let's take a look.

Can eating carrots improve your eyesight?

Carrots are rich in vitamin A, which helps the eyes to turn light into information for your brain. This allows people to see in darker places.

However, eating more carrots won't help you see better. A certain minimum amount will help, but a large number of carrots will not give you superhuman vision.

If your parents have bad eyesight, will you have bad eyesight, too?

Myopia(近视)can be passed from parents to children.

A study by the American Optometric Association found that if both parents are myopic, there's a 33 to 60 percent chance that their child will be. For children who have one parent with myopia, the chance is 23 to 40 percent. and it's down to 6 to 15 percent for kids with non-myopic parents.

So if your eyesight is bad, your children might still have good vision.

Do color blind people see the world in black and white?

Color blindness doesn't usually mean that people see the world like an old movie. They usually can't tell certain colors apart, especially green and red. Another commonly confused pair of colors is yellow and blue.

Our eyes have cone cells (视锥细胞) that sense different wavelengths (波长) of light. If these cells don't work properly, color blindness occurs.

There are different levels of color blindness. Some people are only color blind in low light.

However, in the most serious form of color blindness, everything is shades of gray.

1.According to the article, eating carrots ________.

A.stops the brain from seeing

B.doesn't help you see better at all

C.will help you see clearly in the dark

D.is good for your eyes to some degree

2.If both parents have myopia, their child's chance of having good eyesight is ________.

A.40-67% B.33-60% C.23-40% D.6-15%

3.What is the cause of color blindness, according to the text?

A.Watching movies for too long.

B.Getting too little exercise.

C.Cone cells not working properly.

D.Changes in the wavelength of light.

4.Which statement is RIGHT?

A.You can have superhuman vision after eating a large number of carrots.

B.If your parents have bad eyesight. You might still have good vision.

C.Color blind people see the world in black and white.

D.It's unnecessary to protect our eyes.

5.What is the purpose of the article?

A.To offer some advice on protecting your eyes.

B.To clear up some misunderstandings about our eyes.

C.To provide help for improving your vision.

D.To explain how bad eyesight and color blindness form.

A:Welcome to the English Club. My name is Jack. Today we are going to talk about the best ways to learn English.1.

B:No, it’s too hard to understand spoken English in them.

A:2.Do you learn English that way?

B:Yes, I do. It helps to write English very day.

A:Have you ever studied with a group?

B:Yes. I have learend a lot that way.

A:3.

B:Yes, it is. It really improves my listening and speaking skills.

A:What about reading aloud to practice pronunciations?

B:I do that sometimes because I often need to look up new words in a dictionary.

A:What else do you do to improve your English?

B:4.

A:5.. I will be very glad to help you.

B:I will. Thanks a lot. It’s very kind of you.

A.What’s your idea about learning English?

B.I often watch English cartoon films.

C.Do you learn English by watching videos?

D.What about keeping a diary in English?

E.I like English very much.

F.Call me if you have any difficulties.

G.Having conversations with friends is also a good way try, isn’t it?

她把牛奶收好后转过身来。

She finished ________ the milk ________ and turned around.