(1)as 是连词,意思是"当……的时候,一面……一面",(强调同时,一般连续时间不长),如:
As we were talking about Titanic, our teacher came in. 正当我们谈论"泰坦尼克号"这部电影时,教师进来了。
The students sing as they go along. 学生们边走边唱。
(2)When和as一样都是连词,注意它们的不同。如when"当……的时候"(一般表示动作紧接着发生);
"那时"(等立连词,前有逗号分开)I stayed till sunset, when it began to rain. 我一直呆到太阳下山,那时天开始下雨了。
(3)while是"当……时候;和……同时"(强调同时发生,一般连续时间较长)例如:While I was watching TV, he was reading. 当我在看电视的时候,他正在看书。While there is life, there is hope. 有生命就有希望。
Purifier makers see thirst for cleaner water in China
Typhoon wreaks havoc in the south
One-third of US marriages start online
National English-speaking contest up and running
Residents of more cities eligible to visit Taiwan
Cooperation boosts war on drugs along Mekong
Dane's racist rants decried
Minors going online to buy smokes
Jiaolong completes dive in South China Sea
Assange lauds surveillance reversal
Orchard farmers stimulate Beijing's economy
Sizzling summer tops the record list
Moutai's birthplace distills new reasons to say cheers
Attack on Chinese in France sparks fears
Asia mobile subscribers hit 1.5b in 2017
Warhead stockpile 'defensive'
Two terrorist leaders sentenced to death in Kashgar for attacks
Chinese telecom companies call on Myanmar
Crowds cheer top court decision for gay marriage rights
Tainted rice scandal hits Guangzhou eateries
Snowden not on board flight to Cuba
'Proof of attacks'
Foreign suspects accused of theft
Netizens question young official's 'rocket promotion'
Protesters occupy Istanbul public square
Carrefour source denies chain plans to exit market
Wrongly imprisoned man seeks payment
7 injured at Beckham event
Premier calls for improved system to cope with disasters
Beijing set to expand its fleet of clean-energy taxis in trial project
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |