【推荐1】请阅读下面的短文，从每小题所给的A、B、C三个选项中，选出一个最佳选项，并在答题卡上将该项涂黑。

China is a world leader in 5G network quality and has already built over 1.6 million 5G base stations. This means that China’s telecom companies will be able to offer 5G networks for mobile phone users.

Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data and the Internet. And 4G made all of these things faster. What`s special about 5G? 5G has a very short delay（延迟）between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds to send and receive data. But 5G will get it down to 1 millisecond or less—this is almost real-time.

This big change will not only make our mobile Internet faster, but also deeply change our lives. Read on to find out how.

5G + entertainment 5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G. Also, virtual reality（VR）games will become more popular with 5G. The short delay of 5G will make the games feel even more real. 5G + transport 5G will also bring us safer self-driving cars. These cars can send signals to each other. They also talk to traffic lights and road sensors. 5G will allow cars to react（反应）even faster than human drivers. 5G + smart homes 5G also makes the Internet of things possible. Internet of things is a large network that connects everything to the Internet. Smart homes are part of it. For example, the oven can automatically（自动地）start making breakfast after your alarm rings. And if the smart sprinkler feels the air becoming dry, it could water your plants by itself.

1. Which mobile network generation made people be able to talk with each other?

A．1G.

B．2G.

C．3G.

2. What’s the writer’s purpose in writing the second paragraph?

A．To make people know the knowledge of 5G.

B．To encourage people to use the new network technology.

C．To show the development of mobile network technology.

3. What is the advantage that 5G brings people according to the passage?

A．People can download more movies by using 5G.

B．More people are interested in virtual reality games.

C．People can talk with self-driving cars during the journey.

4. Which of the following needs people to do at 5G smart homes?

A．To make breakfast.

B．To set alarm clock.

C．To water plants.

5. What`s the main idea of the details（细节）in the box（方框）?

A．5G will change our lives in many ways.

B．Mobile networks are changing for better.

C．5G will make the Internet of things possible.

【推荐2】Fishing is a popular activity and every fisherman knows the rule: keep the big ones, throw the smaller ones back. The reason for it is simple—if you keep the smaller ones, fewer fish will be able to grow and reproduce（繁殖）, and the fish population will be in danger. But should we always keep the big ones?

One scientist, Dr.David Conover, has spent the last 10 years studying the effects of the “keep the big ones” rule.

To set up his experiment, Conover and his team caught hundreds of silverside fish and divided them into six groups. For two groups, the scientist followed the “keep the big ones” rule and took out the biggest fish. For the other two groups, he removed only the small fish. For the last two groups, he removed fish randomly（随机地）.

After five years, he measured the fish in each group. In the two groups where the biggest fish were regularly removed, the average （平均）fish size was smaller than the average size in the other groups. That is to say, if only small fish survive to reproduce, then future generations of fish are likely to be small.

For the second five years of his experiment, Conover changed the rules and took fish randomly from each group. At the end of the experiment, he found that the fish that were in the “keep the biggest ones” group for the first five years had started to get bigger again, although he expected it would take at least 12 years for the fish in that group to return to their normal size. In other words, it takes less time to shrink（变小）than it does to recover.

1. Why do fishermen follow the “keep the big ones, throw the smaller ones back” rule?

A．It helps to protect fish size.	B．They are used to following it.
C．It helps to protect fish numbers.	D．They will be punished if they don’t.

2. What did Conover find after the first five years of his experiment?

A．It made fish smaller on average.	B．It made no difference to fish size.
C．It made the fish bigger on average.	D．It affected all fish groups similarly.

3. Which of the following is true according to the experiment?

A．The whole experiment took Conover more than 12 years.

B．It takes fish more time to turn to their normal size than it does to grow smaller.

C．The fish in the six groups had the same average size at the end of the experiment.

D．The fish in the “keep the big ones” group grew to their normal size in the experiment.

4. What’s the author’s intention in writing this article?

A．To ask people to catch big fish.

B．to describe a scientific experiment.

C．To tell people the danger fish are facing.

D．To introduce the rules of fishing to readers.

【推荐1】阅读短文，从短文后面的六个选项中选择五个还原到短文中，使短文通顺完整、衔接自然。

Manners for overnight guests at a family home

If you are going to visit an American, and have to stay overnight, there are some manners you should know and obey.

♦You should take your toothbrush, toothpaste, and pajamas (睡衣).

♦Ask clearly about time—when to arrive and when to go home.

♦Ask about the family schedule (时间表). For example, go into your room at a proper hour,     1     If they say eight a.m., come out of your room at eight a.m.

♦Phones—ask before you use the host’s phone.     2     Do not call before eight a.m. or after ten p.m.

♦Meals—it is polite to help in preparation and cleaning up after meals. Ask if you can. If not, you can stand and talk to the family members while they are busy in preparation or cleaning up the dishes.

♦Children—you never have the right to criticize or scold (训斥) other people’s children.     3    

♦Pets—if you are afraid of cats or dogs, it is best to ask if the family has one before you go to their house.     4     Sometimes people treat their pets like their children.

♦A closed door—each time you leave the guest room, leave it neat and clean. Make your bed and put your things away. A closed door usually means that someone is inside.     5     Americans usually do not lock doors in their homes, such as the doors of bathroom and bedroom.

A．You never have the right to criticize or hit other people’s pets.

B．Knock and wait to be invited in before entering.

C．Ask your host before you go to bed, what time they will be ready for breakfast.

D．You always have the right to praise them and talk to them, showing interest in their things.

E．I’m invited to pay a visit to a family in American.

F．Talk no longer than five to ten minutes at a time.

【推荐2】请先阅读下面短文，掌握其大意，然后从下面的七个选项中，选择五个还原到文章中，使短文意思通顺、结构完整，并在答题卷上将该项涂黑。

Nowadays, a new method is used to decide who are the top students in school. The best students are those who not only get high marks, but also follow the rules and the behavior standards (行为标准) for middle school students.     1    

Tell the truth. Have you ever copied someone else’s work on an exam?     2     That’s not something an honest student should do. If you have played computer games for two hours in your room, don’t tell your parents you were doing homework.

    3     It would be more fun when more people work together. Did you fight with your teammates when your basketball team lost? Only working together can make your team stronger. Be friendly to the people you are with. Try to think of others instead of only yourself.

Be open to new ideas.     4     Perhaps you’ll discover Earth II someday. Don’t look down on new ideas. Everyone’s ideas are important. You should welcome them, because new ideas make life better for everyone.

Use the Internet carefully. Some websites on the Internet aren’t for kids, so make sure to visit the web pages that are good for you.     5     You’d better visit the websites with your parents together.

A．Practice your hobbies often.

B．If you have, then don’t do it again!

C．Learn to work together with others.

D．You can visit the websites for fun or homework.

E．Here are some of the new rules and standards.

F．Your behaviors will make your classmates uncomfortable.

G．Have you ever thought that people could live on the moon?

【推荐3】以下是一篇短文，请阅读全文，并从下列方框里的六个句子中选择五个还原到原文中，使原文意思完整、连贯，并在答题卡上将相应的字母编号涂黑。

Nobody wants to see his aging. Do you know how to stay young? Here’s some advice.

    1    

When the numbers are about how old you are, how heavy you are, and how tall you are, just forget them.     2     However, if you care too much about them, you will become worried and unhappy! Let the doctor worry about them. That’s why you give him or her money.

Make happy friends.

People who are bright and happy should be your friends.     3     Your life will be better because they are there with you.

Keep learning.

Learn more about computers, gardening or other things. Take up a hobby or learn one new thing every day.     4    

Keep healthy.

Do more exercise and eat the right food to keep yourself healthy. If there is something wrong, go to see the doctor.

    5     For example, enjoying the small things in life, laughing more, telling people you love them can all bring you a young mind. Just have a try!

A．Forget some numbers.

B．These can help you always keep fit.

C．These numbers are very important to us.

D．There are still many other ways to stay young.

E．Learning will always make your life more colourful.

F．Their happiness may help bring you good mood (心情).