If you watched the 2018 Winter Olympics, then you might have noticed the suits that the athletes wore. Have you ever wondered why they look so unique? Besides making the athletes look stylish, the suits can also help them move faster. This is especially true for speed skaters.
Wave your hand around in the air. You might feel some air moving around your hand, but you probably don’t think that it can slow your hand down. But if you wave your hand around in some water, you can feel that it is not easy to move your hand. This is called drag (阻力). Air has less drag than water, but it can affect your speed.
Speed skaters wear suits that reduce drag. The suit makes the surface of their body smooth. This way, the air moves more easily over their body and there is less drag.
The US speed skating team’s suits were made out of a white nylon-spandex (尼龙氨纶) mix called H1. When we move, we leave a vacuum (真空) hole of air behind us that can slow us down. Speed skaters need to make it as small as possible. The H1 fabric (织物) can help with this. The fabric makes the airflow behind moving objects more steady and therefore makes the hole smaller, Wired magazine reported.
The H1 fabric was used for the arms and legs of the team’s suits. That’s because human arms and legs move more and feel more drag.
Wearing high-tech suits might not decide the final victor in a competition. But the suits give athletes the best tool to do their job.
1.What was the main goal in making the speed skaters’ suits?
A.To make them stylish. B.To reduce drag.
C.To help the body relax. D.To make air move slowly.
2.What does the underlined word “it” in Paragraph 4 refer to??
A.A white nylon-spandex mix. B.The H1 fabric.
C.A vacuum hole of air. D.The airflow.
3.Which of the following is TRUE according to the passage?
A.A special suit is a tool for athletes to do their job.
B.The H1 fabric is made out of cotton.
C.The H1 fabric was used to make the entirety of the suits.
D.Water has less drag than air.
4.What would be the best title for the passage?
A.Skaters in Competitions B.Changes Happening in Suits
C.Ways of Changing Suits D.High-tech Suits for Skaters
Confucius, a famous teacher, was a politician and philosopher who lived in “Spring and Autumn Period”. During his lifetime, he planted the seeds for China’s transformation by teaching thousands of people. Today, he is thought to be one of the world’s greatest teachers.
Confucius grew up in a poor family. As he grew up, Confucius worked to help his mother earn money. When he wasn’t working, he would read. His favorite thing to do was to learn. His mother saw this and did her best to help him learn. One day, rich families noticed how smart he was and offered him jobs counting their money and keeping track of their crops.
Confucius did this until he was 30 years old, but he always wanted to do more. He didn’t like the way rulers treated their subjects. He wanted to find a way to help people who were less fortunate than he was. Later, he founded the philosophy “Confucianism”. Confucianism states that by educating yourself, loving your family, and respecting tradition you could become a better person. Confucius believed a person could achieve these things by practicing self-discipline. For the rest of his life, Confucius traveled and taught the people of China about self-discipline and the importance of education. He even opened China’s first school that taught both the poor and the wealthy as equals. Although he became very famous among China’s lower classes, the rulers of China never accepted his teachings. Eventually, his philosophy of self-discipline helped China unite under one ruler and finally find peace. Today, Confucius is celebrated all over the world for his philosophy of education, equality, and peace over war, money, and injustice.
1.What can we know about Confucius from the passage?
A.He was once a farmer guiding people farming.
B.He was born in a politician family.
C.He once acted as a math teacher.
D.He devoted himself to social change.
2.The underlined word “subjects”(in Paragraph 3 ) can be replaced by _______.
A.themes B.courses C.people D.tests
3.According to the author, which is the most important to keep peace?
A.Self-discipline. B.Self-confidence. C.Respect. D.Equality.
4.What is the writer’s attitude towards Confucianism?
A.Doubtful. B.Supportive. C.Disappointed. D.Hopeful.
Movies at the Museum Theatre Two Indian movies will be shown on Saturday afternoon at the Museum Theatre. See The Grand Canyon at 2:00. The Builders will be at 3:50. If you want to know more, telephone 010-367890. |
Take Me out to the Ballgame It’s October, and Saturday night(7:00—9:00)is your final chance to see the Blue Birds this year. Get your tickets at the gate. It may be a little cold. Please wear sweaters and jackets. |
Harbin Snow World Ski Park Price: 60 yuan/hour on weekdays and 70 yuan/ hour on weekends. Tel: 0451-979796 |
International Picnic Do you get tired of having the same food every day? Would you like to enjoy food from all over the world? It’s delicious and not expensive. Come to Big Restaurant on Saturday 11:30 am to 5:00 pm. |
1.You can see the Indian movie on_________.
A.Saturday afternoon B.Saturday night C.Sunday afternoon D.Sunday night
2.If you will ski in Harbin Snow World Ski Park for two hours on Sunday, it costs you ________.
A.120 yuan B.130 yuan C.140 yuan D.200 yuan
3.If you go to _________, you can eat many kinds of food in the world.
A.Harbin Snow World Ski Park B.the Museum Theatre
C.the Ballgame D.International Picnic
Mr. Wu is an English teacher. Last Monday at the beginning of class, he ______ asked his students how their weekends had been. One girl said that she had spent a ______ weekend--she had her wisdom teeth pulled out and they still hurt. "Why do you always seem to be so happy, Mr. Wu?" she asked.
The girl's ______ reminded Mr. Wu of something he had read somewhere before. "Every morning when you get up, you have a choice about how you want to get close to life that day," Mr. Wu said with a smile. "I _____ to be cheerful."
"And today is my lucky day," he added.
"______? " The whole class were curious.
"This morning, I ______ to school as usual. I only had to go another kilometer down the road when my e-bike broke down..."
"Your e-bike broke down and it's your lucky day?" The students were ______. "What do you mean, Mr. Wu?"
"My e-bike broke down a quarter before class, so I ______ it on the roadside, took my books, and walked down the road. It took me ten minutes to arrive at the ______. I live eight kilometers away. My e-bike could have broken down ______ along the way. But it didn't. ______, it broke down in the perfect place-off the main road, within walking distance of here. I'm still able to teach my class ______ I'll be able to get it repaired after class. If my e-bike must break down _____, it couldn't be arranged (安排) in a better way."
The students' eyes opened wide, and then they smiled. Mr. Wu smiled back. Somehow, his story had ______ them. He was happy that they had a perfect chance to consider ______ in a new way.
1.A.proudly B.cheerfully C.seriously D.angrily
2.A.busy B.satisfying C.terrible D.meaningful
3.A.question B.suggestion C.decision D.introduction
4.A.fail B.hate C.seem D.choose
5.A.Who B.When C.Why D.How
6.A.walked B.ran C.drove D.rode
7.A.surprised B.bored C.impatient D.nervous
8.A.left B.checked C.repaired D.found
9.A.hospital B.school C.park D.bank
10.A.somewhere B.anywhere C.everywhere D.nowhere
11.A.However B.Also C.Instead D.Otherwise
12.A.and B.but C.so D.or
13.A.yesterday B.the other day C.today D.tomorrow
14.A.hurt B.touched C.controlled D.worried
15.A.dream B.purpose C.wish D.luck
—Where is your book report? Did your dog eat it again?
—No, it almost ,and then my computer just died on me!
A.不填;finishes B.不填;finished C.is; finished D.was;finished
—Is everyone here, Jonathan?
—No. Sir. Millie is absent. She for two days.
A.has fallen ill B.has been ill C.fell ill D.was ill