M3 U4 Astronomy: The Science Of The Stars

Section I Words and Expressions

生命课堂-互动探究

一、 重点单词

1. exist (vi.) to be present in a place or situation

(vi.) (on sth) to live, especially in a difficult situation or with very little money

1）Does life exist on other planets?

2）The charity exists to support victims of crime.

3) There still exist several questions to be solved.

4) They can't exist on the money he's earning.

【拓展】 existence n.

be in existence 现有的 存在的 come into existence 开始存在，开始形成

Pakistan came into existence as an independent country in 1947.

活用：完成句子：

1) ____________________ (某地有......）dinosaurs on the earth long time ago.

2) When did the world ____________________ (产生)?

Summary: ____________________________________________________________

2. puzzle (n.) a game, etc. that you have to think about carefully in order to answer it or do it (n.) something that is difficult to understand or explain (syn 同义词)mystery

(v.)to make sb feel confused because they do not understand sth

1)Their reason for doing it is still a puzzle to me. 2)a crossword puzzle

3) What puzzled me was that he left the country without telling anyone.

4) Karen puzzled over /about the question all evening.

5).He was trying to puzzle out why he had been brought to the house.

【拓展】令人迷惑的 adj. _____________ 迷惑的 adj. _____________

活用：完成句子：

　1)The deeper meaning of the poem ____________________（仍然是个谜）.

　2)_________________(最让我迷惑的)was how he recovered from the disease without

any treatment.

3). When we have any ____________________(让人迷惑的) problems, we often turn to