8. looked into 的用法
look into 意为“向……的里面看；浏览；调查”。如：The police are looking into the accident. 警方正在调查这个事故。
The soldier looked into the house, but he found nothing. 那个士兵朝屋子里边看，但什么也没有发现。
9.Another wave struck the house.另一股洪流冲击着房屋。
动词strike的含义较多，可以表示“撞击；冲击；罢工；打动；划燃；侵袭”等。其过去式是 struck，过去分词是 struck/stricken。如：Strike while the iron is hot. 趁热打铁，趁机行事。An idea suddenly struck me. 我心中忽然产生一个念头。
SARS struck both China and some other counties in 2003 .2003年非典型肺炎袭击了中国和其他几个国家。
The workers were striking for more money. 工人们在罢工，要求增加工资。
10.There she stopped, listening to the strange sounds, 她在那儿停下来，听着奇怪的声响。
1) stop doing sth. 是“停止做某事”；stop to do sth. 是“（把原来在做的事）停下来而做某事；stop sb. (from) doing sth.是“阻止某人做某事”。如：They stopped to have a drink.他们停下来喝点饮料。It stopped raining at dawn.黎明时分雨停了。
They stopped me going out of the door. 他们阻止我出门。
2)这里listening to the strange sounds是现在分词短语作伴随状语。现在分词除了可以作伴随状语外，还可以作时间、原因、条件、结果状语等。如：The children ran out of the classroom, talking and laughing. 孩子们有说有笑地从教室跑出来。（作伴随状语）
While waiting for a bus, I met a good friend.在等车时我遇见了一位好朋友。（作时间状语）
Hearing the cry for help, they all rushed out. 听到呼救声，他们都冲了出去。（作原因状语）
His parents died, leaving him a lot of money,他的父母亲死了，给他留下很多钱。（作结果状语）
11.Tree after tree went down.... which must have been... 树一棵接一棵地倒下了 …，一定是…
这里的tree after tree 相当于 one tree after another,意为“一颗接一颗”，名词前省略冠词。又如：
She did experiment after experiment. 她做了一次又一次的试验。
Year after year they work in the fields. 他们年复一年在田地里耕作。
2)must后接不定式的完成式表示对已经发生的事情的肯定推测，意为“肯定做了某事”。如：
The door is locked. They must have been out. 门锁着，他们一定外出了。
She looks very happy today. She must have done well in the exam.她今天很高兴。她一定考得很不错。
12. Can you work out what the underlined words refer to?你能弄明自下边划线的单词指代的含义吗？
1)work out是“动词＋副词”短语，意为“计算”、“估计”、“想出（办法）”、“制订”、“进展”等。如：
Together they worked out ways to solve the problem. 他们一起想出了解决问题的办法。
Has the plan been worked out? 计划制订好了吗？
We were pleased to see that things had worked out all right.我们很高兴地看到情况发展得不错。
2 《高一新教材备课资料(U4)》出自：www.89xue.com网
www.89xue.com )refer to表示“查阅”、“提到”、“谈到”、“指的是”等。如：
When you meet a new word, you can refer to the dictionary. 遇到生词时，你可以查阅词典。
The speaker referred to his notes several times during the speech. 那位演讲者在演讲过程中几次参看讲稿。
What I have to say refers to all of you.我要说的话涉及到你们大家。
13. struggle with 与…斗争
struggle 常用作不及物动词，与介词 with, for或 against连用。如：
She struggled with/against the thief for a while.他与小偷搏斗了一会儿。
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