【推荐1】

Little Scientist: Dancing Paper Scraps (碎纸屑) If you’re looking for a fun and easy science experiment (实验) to do at home or in the classroom, the dancing paper experiment is perfect! It’s a great way to learn about static electricity (静电) and how it works. Follow the instructions and you’ll find that it’s a piece of cake! Things required: a balloon, paper scraps, a plate Instructions: Step 1: Before you begin, make sure that your balloon can inflate (充气) as easily as possible and tie the end. Step 2: Place the paper scraps on a plate. Step 3: Rub (摩擦) the balloon against our hair again and again. Step 4: Place the balloon above the paper scraps. Result: The paper scraps start dancing in the air! Try this! If you have long hair, try this with your friends. Rub the balloon against your hair, then hold it near your friends’ hair without touching it. Their hair will stand up!

1. According to Paragraph 1, the dancing paper experiment is ________.

A．difficult

B．simple

C．boring

D．relaxing

2. What do you need for the experiment?

A．A plate.

B．A balloon.

C．Paper scraps.

D．All above.

3. What should you do before you start?

A．Place the balloon above the paper scraps.

B．Put the paper scraps on a plate.

C．Blow up the balloon and tie the end.

D．Rub the balloon against our hair.

4. What is the result of the experiment?

A．The paper scraps get wet.	B．The paper scraps move in circles.
C．The paper scraps disappear.	D．The paper scraps dance in the air.

5. What is the purpose of the passage?

A．To learn about how static electricity works.

B．To show the importance of static electricity.

C．To stay away from static electricity.

D．To encourage people to use static electricity.

【推荐2】阅读下面材料，从每题所给的A、B、C、D四个选项中，选出一个最佳答案。
       Parents, teachers, and anyone who often deals with teens know how difficult the teen years can be. Teens always do wild and even dangerous things. This was thought to be due to the foolishness of youth. Now, scientists have a new idea of why teens act this way.
       Recently, scientists discovered that though our brains are almost at their full size by the age of six, they are far from fully developed. Only during the teen years do our brains truly “grow up”. During this time, they go through great changes. These changes were once thought to be finished by age 12. Now, scientists have found that our brains continue to change until age 25. Such changes make us better at balancing our impulses (冲动) with the need to follow rules. However, a still-developing brain does this clumsily. The result is the unpredictable behavior (行为) in teens.
       The studies show that teens prefer to take risks (冒险). Luckily, the news isn’t all bad. As brain scientist B. J. Casey points out, the teen brain inspires (激发) such behavior to help teens prepare for adult life. One way is by changing the way teens measure risk and reward (回报). When teens think about rewards, their brains get more pleasure than an adult brain would. This makes the rewards seem more important than the risks, and makes teens feel the excitement of new experiences more strongly than adults do.
       Although teens sometimes make bad decisions for greater rewards, they are still less afraid to try new things. The special period of brain developing is what help teens leave their parents’ care and live their own lives successfully.
1. What is the main purpose of the reading?

A．To advise teens to think the same as their parents.

B．To explain how teen brains affect their behavior.

C．To describe a study on teen brains.

D．To encourage teens to take risks.

2. Which of the following statements about a human brain is NOT true?

A．It is almost at the full size by the age of six.

B．It makes teens less afraid to try new things.

C．It goes on developing until about age 12.

D．It changes the way teens measure risk and reward.

3. The underlined word “clumsily” probably means ________.

A．without skills

B．with hope

C．without danger

D．with warmth

4. What does the author mean by “the news isn’t all bad” in the third paragraph?

A．The teens can get less pleasure than adults.

B．The bad side of the studies is not understood.

C．The way teen brains work has some strong points.

D．The weak points of the teen brain can be predicted.

5. According to the author, the development of the brain in teen years is ________.

A．successful

B．helpful

C．acceptable

D．unpredictable

【推荐3】Probably nothing can compare with a parent’s will to protect her child. Let’s see how these animals find ways to protect their children.

Sperm whales are emperors of the ocean. They are also the world’s biggest babysitters（保姆）. The mother supports her baby near the surface in order to help it to breathe until it is strong enough to swim on its own. While they are diving for food, however, their young may be unable to follow their parents. This causes a big childcare problem. How to solve it? A babysitter. Older whales have an active role. They may be aunts or grandmothers (who can live to 100 or more years old) and they may even be members of other families. They patiently take care of the young whales just under the surface of the water, waiting for the feeding mothers to return.

Elephants give new meaning to the phrase: takes a village to raise a child. “The baby has a huge group of mothers. These mothers take turns to watch over each other’s children.” They are called “all mothers”, helping the new born survive by helping its mother. With their help, the mother can get enough food and provide milk for her child. After carrying a nearly 300 pound baby for 22 months, you’d probably need some rest too!

How far would you go to protect your child? Would you starve（饿死）yourself to help it survive? Female Octopuses do. An octopus lays between 50,000 and 200,000 eggs each time. Then she separates the eggs into groups based on their size, shape and possibility of survival. She then spends the next two months of her life protecting them. She is so busy keeping them alive. As a result, she doesn’t even have time to feed herself, so she often ends up dying shortly after her eggs hatch（孵化）.

1. In what way is the elephant’s way of child care similar to that of the sperm whale?

A．The mother spends 22 months taking care of her baby.

B．Others in the community help the mother take care of her babies.

C．The mother tries to get enough food and provide milk for her child.

D．Older members of the family help the mother take care of her babies.

2. Which is the correct order for a mother octopus to care for her babies?
①She lays her eggs.       ②Her eggs hatch.       ③She dies of hunger.       ④She separates the eggs into groups.       ⑤She works hard to keep her eggs alive.

A．①②③④⑤

B．④⑤①②③

C．①④⑤③②

D．①④⑤②③

3. What is the best title for the text?

A．Three Kinds of Endangered Animals in the world.

B．Animals that Help and Protect Each Other.

C．Amazing Ways Animals Care for Their Young.

D．The Sperm whales, the Elephants and the Octopuses.

【推荐1】There are many TV programs about Chinese dishes, but few are like A Bite Of China (《舌尖上的中国》). The seven-part documentary tells us food in different places in China.

The different kinds of food on TV are from 60 places. You can see many kinds of food and they can capture your eyes and stomach. And you can also learn how to make the food. That’s why the program becomes so popular.

However, the program is not only about food. There are many different stories between food and people. To know good stories, workers of the documentary spent three months doing research (调查) and nine months filming. Liu Wen, one of the workers, says the stories also showed the social transformations (社会变迁). “The program is like a window. It makes the world know more about China. And it helps people around the world not only enjoy Chinese dishes, but also learn Chinese culture.” he said.

1. There are ________ parts in the documentary A Bite Of China.

A．five

B．six

C．seven

2. The underlined word “capture” means “________” in Chinese.

A．弥补

B．俘获

C．吞没

3. How long did the workers spend finishing the whole program?

A．A year.

B．Nine months.

C．Six months.

4. The program wants to let people ________.

A．Enjoy the Chinese dishes

B．learn people’s stories

C．both Chinese dishes and culture

5. From the article we know ________.

A．A Bite of China is very popular in the foreign countries

B．Liu Wen is a leader of the documentary

C．it’s easy to research and film the program

【推荐3】The year 2024 celebrates the Year of the Dragon. Among the 12 animals of the Chinese zodiac (生肖), the dragon is the only one that is not real. Though it looks scary, Chinese people respect it and even see themselves as the “descendants (后代) of the dragon”.

Wen Yiduo (1899—1946), a well—known Chinese scholar (学者) of his time, said that the idea of a Chinese dragon formed gradually during tribal (部落的) wars. When a strong tribe that highly respected snakes beat other tribes, the tribe mixed the features of its enemies’ totem (图腾) animals with its own to create something truly strong.

Guo Dashun, an archaeologist (考古学家), believes that the idea of a dragon began to grow in northeastern China. There, in Fuxin city, Liaoning province, archaeologists found in 1982 what appeared to be a dragon made up of granite (花岗岩) pieces. Dating back to 6000 BC, it is the oldest craft (工艺品) that looks like a dragon.

In northeastern China, archaeologists also found many small jade (玉) dragons that date back to as early as 3500 BC.

“If you look really closely, they “look like” ... a newborn – be it a pig, a bear, or a deer ...” said Teng Shu—ping, a leading scholar from Taiwan who studies ancient Chinese jade.

These jade dragons, created by people whose society and art were still in the early time, show “a deep—felt surprise with the [changing] force of life,” she said. She said this is what gives the Chinese dragon its “heartbeat ”.

1. When was the oldest dragon—like craft found in China?

A．1899.

B．1982.

C．3500 BC.

D．6000 BC.

2. Which animal is not listed as possibly looking like the jade dragon?

A．Pig.

B．Bear.

C．Deer.

D．Rabbit.

3. Why do Chinese people respect the dragon, according to the passage?

A．Because it is the only animal that is not real.

B．Because it looks powerful.

C．Because they see themselves as descendants of the dragon.

D．Because it is mixed with snakes, which were respected in ancient times.

4. What does Teng Shu—ping compare the small jade dragons to?

A．Fully grown animals.	B．Ancient artifacts.
C．Newborn creatures.	D．Mythological creatures.

5. Why did tribes mix features of their enemies’ totem animals with their own?

A．To create something truly strong.

B．Because they admired their enemies’ totem animals.

C．Because they wanted to confuse their enemies.

D．Because they didn't have their own totem animals.

【推荐1】What would life be like if you were a rocker, a soccer player, a professor at Stanford University, and a Nobel Prize winner? Carolyn Bertozzi from the US lives such a cool life!

Bertozzi, 56, shares this year’s Nobel Prize in chemistry with Barry Sharpless and Morten Meldal. She became this year’s only woman winner in science and the eighth woman to receive the chemistry prize in history.

Bertozzi won the prize for studying the sugar coats of cells (细胞). She has found a smart way to connect cells by connecting their sugar coats. The cells then have a green color so that scientists can see clearly where they are and how they move. According to the University of California, Berkeley, this finding has a quite good influence on medicine.

In spite of her great achievements, Bertozzi said she was not very interested in chemistry until her second year at Harvard University. “The professors made the class very difficult,” she told Chemistry World magazine. “My classmates complained a lot, but it matched my brain.”

Except for doing science studies, Bertozzi has lived a colorful life. She was a keyboarder (键盘手) in a rock band. “I even used to think about making music my major (专业),” she said. She also played soccer and won a scholarship in sports from Harvard.

As a female scientist, Bertozzi tries to encourage female students. “In the late 1980s, maybe 10 percent of the students were female,” she said. “There were maybe one or two women in a lab, so we tried to support each other by starting a monthly get-together for all the women students around me.” In 2022, Bertozzi won an award for this.

Her experience made her learn a very important lesson: You don’t need to know how to succeed quickly. All you need to do is to do some work every day and solve problems step by step. The way to success may finally appear.

1. Why did Bertozzi win this year’s Nobel Prize?

A．Because she was a professor and very interested in chemistry.

B．Because she is the eighth female professor at Stanford University.

C．Because she found a way to connect cells and make them clearer to see.

D．Because she found a new type of cells with a green color in the lab.

2. How might Bertozzi describe her chemistry class in her second year at Harvard University?

A．Useless and quite difficult.	B．Boring and very simple.
C．Difficult and really boring.	D．Interesting and not hard.

3. What can we learn from Paragraph 5?

A．Bertozzi once wrote songs for a rock band.

B．Bertozzi once studied music at her university.

C．Bertozzi lived a colorful life except for doing research.

D．Bertozzi won a scholarship because of her talent in chemistry.

4. How did Bertozzi encourage female students in the 1980s?

A．She set an award for women in some science laboratories.

B．She increased the number of female students by 10 percent.

C．She helped start a monthly get-together for women students.

D．She built a new lab for some female students to do research.

5. What do we learn from Bertozzi?

A．We should learn music in university time.	B．We should win prizes as much as possible.
C．We should find the ways to succeed quickly.	D．We should be patient and work hard to succeed.

【推荐2】When I was a foreign teacher in China，every day I taught English to my students and they taught me about China．One day the topic turned to saying “I love you”．I was shocked to learn that not one of my students had said this to their mothers，nor had their mothers said it to them．“Does your mom love you?” “Of course，”they answered．
“How do you know it?” was my logical question．They responded that their moms cooked and always told them what they were doing wrong to show their caring．I was strummed. So mom's cooking and criticizing read out as “I love you”. “Then how do you say ‘I love you’ to her?” They agreed that getting good grades, followed by good jobs would be how they showed their love.
I come from a culture where most people are expressive enough，so I repeated these queries in classes over time．Gradually，I began to get different responses．Some of them had exchanged those sentiments with their moms．
One of my favorite stories of change came from a girl．When she came home from university，her mother met her at the door and hugged（拥抱）her．This had never happened before，but her mom said，“Now that you have gone I have more time to myself.”I noticed that in some places mothers and children hug each other and I decided it was a good idea and that I would begin hugging you．”
In my family we all say “I love you” a lot．While it is true that we often say the words without having great depth of feelings at that moment，and it is almost like a blessing we give each other. Those three little words carry a world of meaning，even when said as a greeting, but most especially if they are the last words we say to or hear from those we love．
1. The foreign teacher _________．

A．comes from America	B．is a young woman
C．is expressive enough	D．knows much about China

2. Chinese students prefer to show love by __________．

A．saying “I love you”	B．cooking
C．getting good grades	D．doing something helpful

3. In paragraph 4, what's the real meaning of the mom's hugging?

A．She is meeting her daughter at the door．

B．She loves her daughter and misses her．

C．She is glad that she has more time to herself．

D．She finds it interesting to hug her daughter．

4. In paragraph 5, what can we know from the sentence “ In my family we all say ‘I love you’ a lot” ?

A．“I love you.” is a daily greeting.

B．“ Love” is the most important word in our country.

C．They worry about each other.

D．“I love you” are the last words we say or hear from those we love.

5. What's the main idea of the passage?

A．Say “I love you” more to your family．

B．Say “I love you” a lot to Chinese people．

C．Say “I love you” as a greeting to others．

D．Say “I love you” without great depth of feelings．

【推荐3】Do you know 5G? It is the fifth generation (代) of mobile network technology.

5G has a very short delay between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds (毫秒) to send and receive data (数据). But 5G can 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 (娱乐)

5G networks are about 100 times faster than 4G. This means you can download a movie in second s using 5G.

5G+ transport

5G will also bring us safer self-driving cars. These cars can send signals (信号) to each other. They also talk to traffic lights and road sensors (传感器). 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.

Choose the best choice from A, B or C according to what you read.
1. What does the underlined word “delay” in paragraph 2 mean in Chinese?

A．卡顿

B．延期

C．暂停

2. How many milliseconds does 4G take to send and receive data?

A．About 1.

B．About 110.

C．About 220.

3. Which of the following ways is not mentioned that 5G will change people’s lives?

A．Health care.

B．Entertainment.

C．Transport.

4. What will people possibly do with 5G according to the passage?

A．Download a movie in minutes.

B．Put everything onto the Internet.

C．Make self-driving cars safer.

5. What’s the main idea of the passage?

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.