Have fun running and cycling when you sign up (报名) for a Duathlon event.
Get your running shoes and get ready to jump on your bike. A duathlon is an exciting sporting event where you take part in a run, then a cycle and then finish with another run. This may sound tiring but it’s a lot of fun and there are duathlon clubs and games for all age ranges and abilities.
Duathlons can be set across any distance (距离) —there is no fixed rules. The youngest age you can join is usually eight. For this age group, a typical game will begin with a 400-metre run, followed by a cycle of 1.5 kilometres (almost a mile) and finally a 200-metre rush.
For older children, the distances may increase to running 1.5 kilometres, cycling 4.5 kilometres (2.8 miles) and finishing with a 500-metre run. Generally, the second running is half the distance of the first.
The action of changing from running to cycling, and getting on and off your bike, is called a “transition”. Your whole duathlon time includes (包括) the time it takes you to do these transitions—so a speedy and quick changeover is important.
Duathlon games take place in safe places such as a park or running track. The cycling race will often be marked out around a track and sometimes on closed public roads if it’s ad bigger game.
1. According to Paragraph 2, a “duathlon” has ________ different sports.| A．five | B．four | C．three | D．two |
| A．¾ | B．¼ | C．½ | D．⅔ |
| A．There are two runs in a duathlon. | B．The duathlon clubs are only for people aged at least 8. |
| C．There are fixed rules. | D．Duathlon games take place on open public roads. |
① 14 years old but cannot carry; ②8 years old but cannot run; ③ 20 years old but cannot swim
| A．①② | B．①③ | C．②③ | D．①②③ |
| A．Science. | B．Movies. | C．Education. | D．Sports. |
相似题推荐
【推荐1】In order to help teenagers build a strong body, students in Grade 9 have to take part in zhongkao P.E. test every year.
On April 18, Sun Gao from Hangzhou, Zhejiang finished his P.E. test. After three years of hard training, he got 26.5 points.
“It wasn’t a high score, because many of my classmates got full scores — 30 points.
Gong Siyu from Chengdu, Sichuan is in Grade 8 now. “
“I think it’s a good thing.” Gong said. “
| A．In 2022, when Gong takes the test, the P.E. test will be 60 points in zhongkao. |
| B．Health is important. |
| C．I signed up (报名) for an after-school training class. |
| D．Students know where to take a PE test is necessary. |
| E．But I tried my best, so I’m still happy. |
| F．To prepare for the test, many middle school students try their best to train hard. |
【推荐2】No one expected that Baduanjin would become popular among young Chinese people.
In the past couple of years, an online teaching video of Baduanjin, a form of Qigong, has been played for more than 10 million times. “I have been doing Baduanjin for about four months.
Compared with sports such as ballgames or swimming, Baduanjin is slow and usually played with smooth music, so it used to be considered as a sport for the elders.
Sun Yu xuan, a college student, has also noticed the rising popularity of Baduanjin. The 21-year-old girl has been teaching other students to practice for over three years. They started with 20 members in 2019 and the group has 45 members now. “
根据短文内容，从下列选项中选出能填入文中空白处的最佳选项。选项中有一项为多余选项。
| A．It helps me sleep better and get stronger. |
| B．Every member in the group is very active. |
| C．The first part refers to eight separate movements. |
| D．Baduanjin has been spread worldwide by young Chinese people. |
| E．During COVID-19, however, many young people came to realize the advantages of the sport. |
【推荐3】Not all people like to work, but everyone likes to play.
What is your favorite sport? If the weather is hot,
根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺，内容完整，并将其标号填写在下面题号后的横线上。
| A．Sports help people to live happily |
| B．In outdoors sports, people are closer to(亲近) nature |
| C．All over the world men and women, boys and girls enjoy sports |
| D．So we can have great fun in playing sports |
| E．swimming may be your favorite sport |
【推荐1】Dolphins (海豚) are one of the cleverest animals in the world. We may hear of many stories about how dolphins save people out of water.
Dolphins often eat fish and some other sea animals. A dolphin with a weight of 200kg to 250kg will eat 10kg to 25kg of fish every day. They like to swim with other dolphins and usually hunt (捕猎) in groups.
Dolphins have very good hearing. They use it to find things under the water. Many scientists also believe dolphins can even talk to each other through a special whistle (哨声). People from different areas don’t speak the same language. Just like people, dolphins’ whistles have many kinds. One day we may understand dolphins’ whistles, and then they will be able to tell us about themselves.
Dolphins live in the sea, but they are not a kind of fish and they don’t lay eggs. They have babies in the same way as cows and cats do, and give their babies milk. A female (雌性) dolphin has a baby every two to three years.
Dolphins are very friendly. Sadly, there are not many kinds of dolphins left. People killed them for many years for food and other things. Now it’s time to stop this and perhaps there will be more of them in the years to come.
1. If a dolphin weighs 240kg, how much of fish may it eat every day?| A．5kg. | B．16kg. | C．30kg. | D．35kg. |
| A．By taste. | B．By smell. | C．By touch. | D．By hearing. |
| A．Lay eggs. | B．Talk to each other. |
| C．Give babies milk. | D．Save people out of water. |
| A．What dolphins eat | B．Where dolphins live |
| C．How dolphins are swimming | D．Something about dolphins |
【推荐2】①Imagine you are walking in the sand on a beach. As you walk, you leave footprints (脚印). Later, the footprints disappear. But imagine if your footprints stayed there forever. And imagine, too, that you left footprints everywhere you walked so that someone could see everywhere you’ve been. How happy would you be about that? Well, that’s what happens when you use computers and mobile phones. When you go online, you leave your digital (数字的) footprint, and it can be tracked (追踪) in a database (数据库). Does this matter? Of course, the answer is “Yes”. There are some reasons why your digital footprint matters to you.
②There is someone who is interested in what you write on Twitter or post on Instagram. For example, companies who sell things are interested because they want to send you ads for things they want you to buy.
③What you write online influences how people see you. Perhaps one day you write something silly online. Maybe you make a bad joke. Years later, it’s found by the university you’re applying to, and they don’t think it’s funny. Then what? Maybe they decide you’re not the right kind of person for them.
④You should keep your money safe. There are plenty of people looking at information about you, and some of them want to steal from you. The less information you put out, the harder it is for them. Bank details, card numbers, passwords (密码) ... None of them should be written in emails, text messages or anything else.
⑤In a word, remember that you have a digital footprint, and think carefully before you click “send” or “post”. No one can go online and not leave a footprint, but with care, you can control it.
1. What does the underlined word “it” refer to in Paragraph 1?| A．Your digital footprint. | B．Your computer. |
| C．Your mobile phone. | D．Your database. |
| A．Your footprints on a beach can be tracked in a database. |
| B．Everybody is interested in what others post on Instagram. |
| C．What you write online may be found by others years later. |
| D．It is safe to send your passwords in emails to your parents. |
| A．People must pay attention to ads from companies. |
| B．People are expected to post funny things online. |
| C．People are encouraged to keep their money safe. |
| D．People should be careful with digital footprints. |
A． | B． | C． | D． |
【推荐3】Trivia about some animals
Ants don’t have ears. But that doesn’t mean they are deaf. They hear by feeling vibrations（震动）in the ground. Ants have special sensors（传感器）on their feet and legs to sense signals from their surroundings.
A whale who sings at the wrong frequency（频率）is known as the loneliest whale in the world. One whale, recorded since 1989 and tracked（跟踪）since 1992, sings at a frequency of 51.75 Hz, while others of her kind sing at 15 to 25 Hz. She’s lonely because no one else can hear her.
Emus can walk forward but not backward. It is not clear why this bird cannot walk backward. Many have suggested that its knee joint（关节）prevents it from moving backward.
Did you know this? Birds can’t be brought into outer space because birds need gravity（重力）to swallow（吞咽）food. NASA did an experiment with a bird in space. After the spaceship reached orbit（轨道）, the bird did not eat anything. It also had some balancing problems.
Water is one of the deadliest enemies of chinchillas. Chinchillas should not get wet because they have very dense（浓密的）fur that is extremely difficult to dry, causing a risk of fungus（真菌）and bacterial（细菌）infection, which can in turn, create a bigger problem for their skin.
1. Ants sense signals by _________.| A．ears | B．mouth | C．nose | D．feet and legs |
| A．they sing too frequently | B．they sing at different frequencies |
| C．they sing at 15 Hz | D．they sing lower than 25 Hz |
| A．Emus can walk backward. | B．Chinchillas’ fur is wet and warm. |
| C．Birds can live normally without gravity. | D．Chinchillas don’t like water. |
【推荐1】Nearly every parent says that we never grow up. In fact, we are maybe 16 or 17 years old. In their eyes, we are always little ones and always do wrong things. For example, when I need to stay at home alone, they always worry about me and my life without them.
Most parents always think that they have offered the best things they can to make their children live in a comfortable world. They buy their children pretty clothes, cool shoes, strange but expensive school things, and always a thousand-yuan-cost bike. They think that they have done everything they can to their dear little children. In return, they only want their little boy to give them good results in the examinations.
But why their little babies still can’t understand them? Does it mean that they still want more material（物质的）things? No. As a matter of fact, what they want is a true family. What does a true family mean? I think it means a place where we can hide ourselves from the outside cold world. From here, we can get warmth, we can get consolation, and we can get happiness. And one important thing is that we should be stronger and more confident in the outside world because we know that we have a family.
So I think that parents should save their money and sit down to talk with their child to let them know that they have a true family, so the child and his parents could understand each other more and more. Then, no boy will be regarded as a little boy.
1. Through the first paragraph, we can see the writer of this article is ________.| A．a doctor | B．a teacher | C．a parent | D．a student |
| A．They will never grow up. | B．They can’t do well in their studies. |
| C．They don’t know how to save money. | D．They don’t need their help. |
| A．More material（物质的）things. | B．More money. |
| C．Pretty clothes. | D．A true family. |
| A．提醒 | B．安慰 | C．物资 | D．同情 |
| A．that most children always do wrong things |
| B．that most parents want to buy everything for their children |
| C．what children really want |
| D．parents pay less attention to their children |
| What they want | Love | Money | Freedom | Control | Something else | ||
| 40% | 18% | 28% | 10% | 4% | |||
| Who to talk with | Oneself | Family members | No one | ||||
| 27% | 55% | 18% | |||||
| Communicate (交流) with their parents freely or not | Yes | A little difficult | No | ||||
| 46% | 44% | 10% | |||||
| The way they like to live | Living with parents | Living without parents | No idea | ||||
| 58% | 14% | 28% | |||||
| What they think of their parents’ working in cities | Bad | Good | No idea | ||||
| 20% | 39% | 41% | |||||
| Happiest place | School | Home | Friends’ homes | ||||
| 48% | 34% | 18% | |||||
1. In the survey, children were asked about many things except .
| A．pocket money |
| B．places they like |
| C．their needs |
| D．their parents’ working in cities |
| A．love | B．money |
| C．control | D．freedom |
| A．About one out of every two children has no one to talk with. |
| B．All of the children prefer to stay at home without their parents. |
| C．About 1/3 of the children think their parents’ working in cities is bad. |
| D．More than half of the children think it is good to live with their parents. |
| A．48. | B．102. | C．144. | D．156. |
| A．most left-behind children want more freedom without their parents |
| B．over 40% of the children have difficulty talking to their parents freely |
| C．all the left-behind children dream of making money in big cities |
| D．most villagers prefer living a peaceful life in the countryside |
【推荐3】In our daily life, robots are often found to do work that is too dangerous, boring, difficult, or dirty. And we often see kids play with toy robots.
But what exactly is a robot? There are some important characteristics （特征）that a robot must have. These characteristics might help you to decide what is and what is not a robot. It will also help you to decide what you will need to build into a machine before it can be considered as a robot. A robot has these important characteristics:
Sensing First of all, your robot would have to be able to sense the environment around it. Give your robot sensors（传感器）: light sensors（eyes）, touch sensors（hands）, chemical sensors（nose），hearing sensors（ears）and taste sensors（tongue）.
Movement A robot needs to be able to move around its environment. It can move on wheels, walk on legs or be driven by small engines（发动机）. A robot can move either the whole body or just parts of it.
Energy A robot needs to be able to power itself. Some robots might power itself with sunlight, some might with electricity, while others with the battery（电池）. The way your robot gets its energy will depend on what your robot needs to do.
Intelligence A robot needs some kind of “smarts”. A programmer is the person who gives the robot its “smarts”. The robot will have to have a certain way to receive the program so that it knows what it is to do.
1. The underlined word “it” in Paragraph 2 is about .| A．the characteristic | B．the machine | C．the engine |
| A．see | B．hear | C．smell |
| A．Two. | B．Three. | C．Four. |
| A．能源 | B．勤奋 | C．智能 |
| A．To help people understand what a robot is. |
| B．To tell what a robot can do in our life. |
| C．To describe the movement of a robot. |
