汽车轮胎为什么是黑色的？Take a look at the cars driving down the street. What color are their tires? They are all black. Do you know why? Early car tires had a much lighter color. That’s because they were made ……

. always feel excitedD. always feel excited    2. What did scientists ask people to see in the study?2. What did scientists ask people to see in the study?2. What did scientists ask ……

. When did it first come to China?2. When did it first come to China?2. When did it first come to China?2. When did it first come to China?A. In 1935.  A. In 1935.  A. In 1935.  ……

轮胎为什么是黑色的？Take a look at the cars in the street. What color are their tires (轮胎)? They are all black. Do you know why? Early car tires had a different color. That’s because they were made of natural ……

of Mathematics.C. Why math is beautiful and fun.C. Why math is beautiful and fun.D. How math helps us ……

. Which question does Paragraph 2 answer?2. Which question does Paragraph 2 answer?A. Why do people use black seats for bicycles?A. Why do people use black seats for bicycles?B. How hot can a bicycle seat ……

the answer:1. When did the phrase “dopamine dressing” first come out?1. When did the phrase.... In 2020. C. In 2021. D. In 2020.  2. According to this passage, what did science show ……

headlights (头灯)enginebumpertiresdoor. ……

It takes about 20 seconds (秒) for a chameleon (变色龙) to change colors. ……

(WTO) rules and that it was about to appeal.Q: Why did the US want to impose a tariff on Chinese tires... in the third. In 2008, China exported 40 percent of the 3.5 billion tires that it produced, with a third ……

“穿脱自如”的轮胎People in cities sometimes ride bikes. But they can’t ride in mountain areas (山区). This new kind of tire can solve this problem. Look, it has a zipper (拉锁). You can change the tires ……

Getting startedGetting startedDo you like eating apple pie? Why or why not?Do you like eating apple pie? Why or why not?reading reading A couple lived at the top of a hill for more than 40 ……

the chain drive that bikes still use today. Later in that decade (十年), brakes and tires were finally... and it used the chain drive that bikes still use today. Later in that decade (十年), brakes and tires were ……

said, “This Autumn Colors is a fake!” Why did he say so? Do you think the painting is a fake? ……

是谁让这个季节变得如此的绚烂多彩？全版词数 500 建议阅读时间 14分钟 教案见网站DID you enjoy autumn? Yellow, orange, red and purple! Why do the leaves change their colors every fall? It is amysterious(神秘的) thing and scientists ……