1492年哥伦布到达了现在所称的美洲大陆。

　　2．[教材原句]However, it is likely that Native Americans were living in California at least fifteen thousand years ago.

　　然而，可能至少在15 000年以前美洲土著人就住在加利福尼亚了。

　　[句型点拨]it is likely that ..."有可能......"。

　　[佳句赏析]It's likely that the conference will be put off because of the weather.

　　这次会议有可能会由于天气原因而被推迟。

　　3．[教材原句]Of the first Spanish to go to California, the majority were religious men, whose ministry was to teach the Catholic religion to the natives.

　　在首批移居加州的西班牙人中，大部分是宗教人士，他们的职责是向原居住人民传授天主教。

　　[句型点拨]修饰序数词，the last, the only等或被这些词限定的名词/代词时，用不定式作定语。

　　[佳句赏析]She was the first athlete to win the gold medal in Rio Olympics.

　　她是第一个在里约奥运会上赢得金牌的运动员。

　　4．[教材原句]It is believed that before long the mix of nationalities will be so great that there will be no distinct major racial or cultural groups, but simply a mixture of many races and cultures.

　　人们相信，用不了多久，多种国籍的混合将会非常之大，以至于不可能存在一种明显的主要种族或文化群体，而只是多种族、多文化的混合体。

　　[句型点拨]It is believed that ..."人们认为/相信......"，其构成为：It＋be＋过去分词＋that从句。

　　[佳句赏析]It is believed that greenhouse gases are the main causes of global warming.

　　人们认为温室气体是全球变暖的主要原因。

　　1．The customs and languages of the immigrants live on in their new home.(P1)

　　这些移民的风俗习惯以及语言在他们的新家都得以延续。

　　★live on继续存在；继续生存；以......为食；靠......为生

　　写出下列句中live on的含义

　　①In order to live on, the lions have to leave this grassland for another place. 继续生存

　　②Our government took measures to make this custom live on.继续存在

　　③He found it quite hard to live on the money he earned in the factory. 靠......为生

　　④A panda lives on bamboo leaves.以......为食

　　live through　　 经历......而幸存

　　live up to 符合；不辜负(希望)；履行

　　live with 和......一起生活；容忍......

　　live/lead a ... life 过着......的生活

　　⑤It is said that the old soldier has lived through two world wars.

　　据说这位老兵经历了两次世界大战。

　　⑥Had she lived up to her promise, she would have made it to Yale University.

　　如果她当年履行了自己的诺言，她就会进入耶鲁大学了。

　　2．However, it is likely that Native Americans were living in California at least fifteen thousand years ago.(P2)

然而，可能至少在15 000年以前美洲土著人就住在加利福尼亚了。