单词：polar covalent bonds
单词：polar covalent bonds 相关文章
Baseball Slugger Barry Bonds' Future on Hold 棒球击手Barry Bonds对其未来有所保留 He is 53 home runs shy of breaking Hank Aaron's all-time Major League Baseball home run record. He trails N
VOA2005（上）--体育娱乐看台
A new study has found that the Arctic's iconic polar bears are finding it harder to hunt for food due to melting sea ice caused by climate change, putting the species at a growing risk of extinction. Researchers from the United States Geological Surv
2018CRI中国国际广播电台
When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bea
2016年Scientific American(十)月
Seventy-nine degrees north latitude is near the top, at the cold edge of the world. In the winter, when temperatures plunge below freezing, there is complete darkness at noon. During summer, the sun shines at midnight, there is no place to hide. Dang
国家地理2007年
She worries a lot. She worries about polar bears. They are big, white bears. They live in the north. They need snow. They need ice. They need cold weather. There is too much pollution. Pollution heats up the Earth. Heat melts the ice. The ice is the
儿童英语小故事
By David Byrd Washington 08 August 2007 San Francisco Giants slugger Barry Bonds has passed Hank Aaron for the Major League Baseball career home run record. But the achievement is under a cloud because of allegations of steroid use. As VOA's David By
2007年VOA标准英语（八月）
By Robert Raffaele Washington, D.C. 23 July 2007 Baseball fans around the world have watched Barry Bonds of the San Francisco Giants pursue a date with destiny. The Giants' home run slugger first eclipsed Babe Ruth's home run total of 714, then set h
2007年VOA标准英语（七月）
BBC Learning English Weekender Polar Explorer Amber: Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to an interview with explorer, Rosie Stancer. In March, Rosie sets off on her latest expedition walki
Weekender
A student bond is an agreement to work in New Zealand after graduation in return for money from the government. The government today announced this plan for new doctors, vets, nurses, midwives and teachers. If they work in rural areas or small towns
新西兰英语
By Ernest Leong Washington, DC 08 June 2006 watch Bonds Controversy report Experts refer to baseball as a game of numbers. Recently, Boston Red Sox pitcher Curt Schilling won his 200th game and Derek Jeter of the New York Yankees collected his 2,000
2006年VOA标准英语（六月）
BRUSSELS, Nov. 23 (Xinhua) -- European Commission chief on Wednesday firmly defended the proposals for jointly issuing Stability Bonds, otherwise known as eurobonds. The bonds are an example of reinforced governance, of a strong will to live together
英语新闻
STOCKHOLM, May 8 (Xinhua) -- The 2012 Swedish Polar Music Prize was awarded to the American singer-songwriter Paul Simon and the Chinese American cellist Yo-Yo Ma, the prize committee said in a statement on Tuesday. For five decades, Paul Simon has b
英语新闻
Voice 1 Thank you for joining us for todays Spotlight. Im Rebekah Schipper. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Sib
环球英语 Spotlight
The dogsled skimmed silently over the frozentundra. The seal hunter ran alongside it. Sometimeshe cracked his whip against the ice. The snowdrifts looked like giant white sculptures asthe sun slipped behind the frozen hills. Then a fullorange moon ro
汪培珽儿童英文分级书单《神奇树屋》
The dogs were barking wildly at two smallcreatures playing in the moonlight. Polar bear babies! cried Annie. One roly-poly cub leaped onto the other. Then theyboth rolled through the snow. Hi, little bears! Annie called. The cubs jumped up and shook
汪培珽儿童英文分级书单《神奇树屋》
The cubs whimpered louder. They want to go to her, but they're afraid of theice, whispered Jack. Annie petted the cubs. Don't be afraid, she told them. You'll get back toyour mother.The big polar bear growled. She paced back andforth, sniffing the ai
汪培珽儿童英文分级书单《神奇树屋》
Jack, you can get up now, said Annie. Jack opened his eyes. Annie was standing over him. She still had her mask on. We're on safe ground, she said. Jack felt as if he'd been dreaming. He lookedaround. They had reached the tundra at the edge ofthe fro
汪培珽儿童英文分级书单《神奇树屋》
BEIJING, June 21 (Xinhua) -- China will launch a new icebreaker for use during an upcoming 2013 polar expedition, a senior oceanic official said on Tuesday. Both the new icebreaker and Xuelong (Snow Dragon), an icebreaker that operated in Antarctica,
英语新闻
Voice 1 Hello, Im Marina Santee. Voice 2 And Im Ruby Jones. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 A tall man stands s
环球英语 Spotlight
Chinas bank loans hit a record 2.51 trillion yuan in January and more than three-quarters of the proceeds went to companies. The development comes as worries about mounting corporate debt become a pressing issue. Companies now have three ways to rais
cctv9英语新闻2016年