Cars make our lives more convenient. But theycan also be a problem. For example, fossil fuel (化石燃料)cars mainly cause air pollution.

    To improve the environment, many countriesare developing electric vehicles (EVs,电动车).Among them, China is taking a leading role and has created the world's largestEV market.

    Last year, over 40 per cent of the 753,000EVs sold in the world were sold in China, more than twice as many as the numbersold in the United States.

    "Filling up a fossil fuel car with gas(汽油) is more expensive than charging (充电) an electric car," said Wu Hao, who bought an electric carthis year.

    However, there are still some problems. Itcan be hard to find charging piles (充电桩) andthe cars can't go far before being recharged.

    Some of these problems are being solved. In2014, China had 31,000 charging piles. Now China has the world's largest EVcharging network, with more than 450,000 charging piles in total.

    Developing EVs is one of many efforts thatChina has made to cut down pressure on its environment after the governmentpromised to stop increases in carbon dioxide emissions (二氧化碳排放量) by 2030.

    "As China goes, so will the world'scar industry," the Wall Street Journal said.

Hello! My name is Mary Green. Green is my{#blank#}1{#/blank#} name. Mary is my {#blank#}2{#/blank#} （one）name. I {#blank#}3{#/blank#} an English girl. I'm {#blank#}4{#/blank#} China now. Look! This is my school ID card. The {#blank#}5{#/blank#}is 53467. 

This is my pencil box. It is black {#blank#}6{#/blank#}white. Some pencils and pens are in{#blank#}7{#/blank#}. And this is my classroom. Oh，I find{#blank#}8{#/blank#} eraser in my classroom. It is white. Now it is in the {#blank#}9{#/blank#} and Found box. Is it {#blank#}10{#/blank#}? You can call at 18888917385. 

The following is a discussion from Mr. Knowall's BBS. The topic of the discussion is about the ways of students' keeping their private (秘密的) things.

Dear staff，

Here's the schedule（日程安排）for next week's activities in Breakout Adventure Center. See you all on Monday morning in the staff parking lot. 

Please be there by 8：00 a. m. as the bus will leave at 8：15 a. m. 

For more information，please send me an e﹣mail or call me at 456﹣9674. 

Sincerely，

Linda

Plunk! I dropped another pecan(山核桃) into my basket. Then a gentle autumn wind blew some more off the tree. I ran to pick them up. Whew! Pecan picking was hard. My basket was only half full.

I was visiting my grandpa's farm in Kansas, and Grandpa sent me into the woods to pick up pecans for us to enjoy later. I wasn't about to let him down.

Then something caught my eye: a squirrel picked up a pecan, climbed up a tree and disappeared into a large hole. A moment later, the squirrel climbed down to the ground to pick up another pecan. Once again, the squirrel took the pecan back to his secret hiding place inside the hollow(洞) of the tree.

Not so secret any more, I thought. I ran over to the tree and found the hollow was filled with sweet pecans. They were right there for the taking. This was my chance. Handful by handful, I took all the pecans from the hollow. Now the basket was full!

I was so proud of myself. I couldn't wait to show Grandpa all of the pecans I'd collected.

"Look, Grandpa," I shouted, "look at all of the pecans I found!" Grandpa took a look at my basket. "Well, well, how did you find so many, Jimmy?" 1 told him how I'd followed the squirrel and taken the pecans from his hiding place. Grandpa congratulated me on finding out something about the squirrel's secrets. Then he did something that surprised me. He handed the basket back to me and put his arm gently around my shoulders.

"That squirrel worked very hard to collect his winter food," he said, "Now that all of his pecans are gone, don't you think that little squirrel will be very hungry when it gets cold?"

"I didn't think about that." I said.

"I know," Grandpa said, "But a good man should never take advantage of someone else's hard work, even the squirrel's."

Suddenly I felt as hollow as that old tree. The image(形象) of that hungry squirrel wouldn't leave my mind.

There was only one thing I could do.