新概念英语第二册逐句精讲语言点 第67课(2）
Lesson 67: Volcanoes 火山
Haroun Tazieff, the Polish scientist, has spent his lifetime studying active volcanoes and deep caves in all parts of the world. In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro. Tazieff was able to set up his camp very close to the volcano while it was erupting violently. Though he managed to take a number of brilliant photographs, he could not stay near the volcano for very long. He noticed that a river of liquid rock was coming towards him. It threatened to surround him completely, but Tazieff managed to escape just in time. He waited until the volcano became quiet and he was able to return two days later. This time, he managed to climb into the mouth of Kituro so that he could take photographs and measure temperatures. Tazieff has often risked his life in this way. He has been able to tell us more about active volcanoes than any man alive.
句子讲解：
4、Though he managed to take a number of brilliant photographs, he could not stay near the volcano for very long.
尽管他设法拍了许多十分精彩的照片，但他却不能在火山附近停留太长时间。
语言点 managed to take设法拍照
5、He noticed that a river of liquid rock was coming towards him.
他发现有一股岩浆正向他流过来。
语言点 a river of liquid rock 一股岩架
6、It threatened to surround him completely, but Tazieff managed to escape just in time.
眼看着岩浆就要将他团团围住，但是塔捷耶夫还是设法及时逃脱了。
语言点 manage to escape设法逃脱
真题测试 测试语言点：while连接并列句
We thought there were 35 students in the dinning hall,( ), in fact, there were 40.
(2006年高考全国卷II，第13题) A. while B. whether C. what D. which
答案：选A
分析：此题主要考査while的另一用法：while表示对比或转折，相当于but,但是语气 没有but重;本句中in fact是关键词。
翻译：我们原以为在餐厅里只有35个学生，实际上却有40人。
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高中英语语法(1)when, while, as区别
while的用法
