《Language in use》journey to space PPT下载

外研版八年级英语下册《Language in use》journey to space PPT下载，共16页。

New words

earth n. 地球

moon n.月球，月亮

astronaut n.宇航员

space travel 航天旅行

model n. 模型

spaceship n. 航天器，宇宙飞船

universe n. 宇宙

galaxy n. 星系

solar system n. 太阳系

environment n. 环境

Grammar

have been to与have gone to和have been in的区别 ：

（1）have/has been to意为“曾经去过某地”，表示现在已经不在那里了,后可接表示频率的名词，如：once、twice、three times等等，例如：

I ’ve just been to the post office.

Have you ever been to Hangzhou?

Mary has never been to the Great Wall.

I ’ve been to Beijing three times.

They have been to that village several times.

（2）have /has gone to 意为“到某地去了”，表示到了某地或正在去某地的途中。总之，说话时该人不在现场。

—Where is Tom?

——汤姆在哪里？

—He has gone to the bookshop.

——他到书店去了。

（3）have /has been in 意为“在某地待了多长时间”，常与时间段连用。

I have been in this school for three years.

He has been in Beijing for half a month.