2020届一轮复习人教版必修三Unit4Astronomy-the science of star(12)

5.get close to 接近，靠近

6.step forward 朝前走；迈步向前 7.fall over 跌倒；摔倒

三、这样记句式

先背熟 再悟通 后仿用

1.When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's.

当我们更接近月球时，就会感到月球的引力在拉我们，但是月球的引力不像地球的引力那么大。 原级比较的特殊句型：“as＋adj.＋a/an＋n.＋as”。 I hope you can give them encouragement to live as_rich_and_full_a_life_as you do.

我希望你能给予他们鼓励，让他们和你们一样过着丰富多彩而充实的生活。

2.But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. 但当我试图往前走时，我发现自己被带到一个步幅相当于地球上两倍远的地方并且摔倒了。 倍数表达法之一：“倍数＋as＋形容词/副词原级＋as ...”。 As we all know, cats sleep twice_as_much_as people.

众所周知，猫睡觉的时间比人长一倍。

3.We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased.

我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。 形容词作伴随状语，补充说明主语所处的状态。 After the long journey, the three of us went back home,

hungry_and_tired.

长途旅行之后，我们三人回到了家，又饿又累。

1．(教材P29)Other scientists believe that a comet crashed into the earth long ago and caused the disappearance.

其他科学家认为很久以前一颗彗星与地球相撞导致了(恐龙)灭绝。

crash vi.& vt.碰撞；坠落n.(汽车的)撞车事故；(飞机的)失事；撞击声 crash into/onto ... 撞到……上/里 with a crash 轰隆一声

①A lot of passengers were killed in the train crash. 许多旅客在火车碰撞中丧生了。

②The car crashed into a big stone and burst into flames. 汽车突然撞在一块大石头上并燃烧起来。 ③The tree fell with a great crash all of a sudden. 突然，那棵树哗啦一声倒了下来。

[语境串记] He witnessed a serious train crash today.Two trains crashed into each other and let out a loud crash.

今天他目睹了一起严重的火车相撞事故。两列火车彼此撞在了一起，发出了很大的爆裂声。 2．(教材P30)As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity.

随着火箭升入太空，由于我们在努力挣脱地球的引力，我们被向后推在座位上。 pull n．& vt. 拉(力)；拖；牵引力 pull off 脱(衣、帽等)

pull through 康复；完成；使渡过难关

pull in (火车)进站；(船)靠岸；驶向路边停靠 pull up 停车；停住 pull down 拆毁

①Pull the chestnut out of fire. [谚语]火中取栗。

②I didn't notice the train had already pulled in. 我没有注意到火车已经进站了。

③The driver pulled up at the gate of our school. 司机把车停在我们校门口了。

3．(教材P31)I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.

我立刻感到很高兴，由于失重我在太空舱里飘来飘去，我望着(身后的)地球越来越小，而(前方的)月球越来越大。

cheer (sb.) up 感到高兴；感到振奋

(1)cheer sb.on (赛跑比赛中)以喝彩声鼓励某人；为某人加油 (2)cheerful adj. 快乐的；高兴的；兴高采烈的 cheering n. 欢呼，喝彩

adj. 令人振奋的，令人高兴的

cheers int. (用于祝酒)干杯；再见；谢谢 形象记忆

①I tried to cheer her up by telling her the good news. 我把这个好消息告诉了她，想使她高兴起来。 ②Friends will cheer you on when you are in trouble. 朋友会在你有困难的时候鼓励你。

③She is so cheerful (cheer) that everyone likes her. 她是一个快乐的女孩，每个人都喜欢她。

[语境串记] The cheering news made the boy cheerful，which made his parents cheer up too. 这个令人振奋的消息使得这个小男孩高兴起来，他的父母也感到高兴。 4．(教材P31)“Oh dear，” I cried，“walking does need a bit of practice now that gravity has changed.” “天哪，”我大声说，“重力改变了，看来走路的确需要练一练了。” now that 既然

(1)now that在意思和用法上同since，引导原因状语从句，口语中that可省略。 ①Now that everyone is here, let's begin our meeting. 既然大家都到齐了，我们就开始开会吧。

②Now_(that)/Since you have grown up, you should not rely on your parents. 既然你长大了，就不应该依靠你的父母了。

[联想发散] (1)引导原因状语从句的连词还有：since, because, as, considering (that), in that等。

(2)引导原因状语的短语：due to, thanks to, because of, as a result of, owing to, on account of等。 ③I've been lucky in_that I have never had to worry about money. 我很幸运，因为我从来不必为钱发愁。 5．(教材P31)We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased.

我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。 break out 突发；爆发 break away from 脱离/挣脱……

break down 出故障；坏掉；失败；(健康等)垮掉 break in 插话；破门而入 break into 破门而入 break up 打碎；结束

①Her friends came to help her when the war broke out.(2017?浙江高考) 当战争爆发的时候，她的朋友来帮助她。

②He broke into the room and stole many famous paintings. 他闯进房间偷走了许多著名的绘画作品。

③Our plans have broken down,_so we have to start from the very beginning. 我们的计划失败了，我们不得不从头再来。 6．watch out (for)密切注视；当心；提防 watch over 照看；看守

keep a watch (for ...) 守望(……)；注视(……) ①Watch out for the haze; it may do great harm to us.

当心这种雾霾天气，它可能对我们造成很大损害。 ②The police are_keeping_a_watch on his movement. 警方正密切注视着他的动向。 ③She is watching over her sick child. 她在照料自己生病的孩子。

1．When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's.

当我们更接近月球时，就会感到月球的引力在拉我们，但是月球的引力不像地球的引力那么大。

(1)句中as strong a pull as属于“as＋adj.＋a/an＋n.＋as”结构，意为“像……一样的……”，其中的名词必须是可数名词的单数形式，此结构用于否定句中可用“not so/as ...as ...”结构。 ①She is as good a t …… 此处隐藏：3126字，全部文档内容请下载后查看。喜欢就下载吧 ……