牛津译林版高中英语必修二unit3amazingpeoplegrammarandusage课件

牛津译林版高中英语必修二unit3amazingpeoplegrammarandusage课件内容摘要：

nea on the 29th. She ⑺ ____________ flying nearly a month earlier. When the base tried to contact Amelia at . on 2 July 1937, she ⑻ _____ already ______ missing. started had started had gone When the Titanic was built, people assumed it would never sink. So, when it sank on its first journey, the news (1) __________ (surprise) everyone greatly. The Titanic was built in Belfast, Ireland. Its makers (2) _______ (spend) a great deal of money building the extraordinary ship. surprised spent When it was finished, it was the largest and most fortable ship ever built. The Titanic set sail on 10 April 1921. „I (3) _____________ (want) to set foot on the Titanic ever since it was built,‟ said Molly Brown, a Titanic survivor. „I never imagined it would sink.‟ had wanted On 13 April, the Titanic was sailing at full speed towards New York. The captain, who (4) ____________ (receive) warnings about icebergs all day, had missed the warnings as they (5) _________ (arrive). had received arrived At ., the Titanic sank into the sea. It (6) _______ (hit) an iceberg just over two hours before. Of the 2,208 people aboard the ship, only 705 (7) _________ (survive). Explorer Robert Ballard (8) ___________ (search) for the Titanic for more than 20 year before he found it. had hit had searched survived „When new technology was developed, we (9) _____ (use) it to send cameras down into sea. Finally, we found the ship. With his cameras, he was able to find the hole along the side of the ship which (10) ___________ (cause) it to fill with water and sink. had caused used The present perfect tense is used when we are talking about a past event which relates to the present time. The past perfect tense is used when we are discussing the past and want to talk about an even earlier event. Present perfect or past perfect? Cai Lun is a famous Chinese inventor, known for inventing paper. Cai invented paper in AD 105, but (1) __________ many times at first. Before his invention worked, Cai (2) ________ many different parts of trees and plants to make The inve。