Go sightseeing 观光旅游招待
A:What about visiting the Great Wall this weekend? The weather is great tomorrow.
B:That's a good idea.
C:Great.
B:Could you introduce it for us?
A:OK! The Great Wall is one of the wonders of the world. And nowadays it acts as not adefenseagainst the offensive, but theprecious historical relicwhich welcomes tourists from all over the world. And we'll know more about it through the guide's introduction.
B:When will we get out tomorrow?
A:How about 7 o'clock?
C:That's OK.

重点讲解：
Defense n. 防御
Precious adj. 珍贵的
相关词汇：
infrequent; precious; rare; valuable; dear
例如:
An infrequent visitor 一位稀客
Precious words 珍贵的话
Rare animals 奇异的动物；rare birds 珍禽
Valuable perfume 高贵的香料
Dear How pure, how dear their dwelling-place. 指明它的来处纯洁而珍贵。
Relic n. 估计
Historical adj. 历史的
小贴士：我们跟外国人介绍景点时，需要加一句类似“The weather is wonderful.”之类的话，另外，还要赞美一下所去景点的美丽或历史。

A:这个周末去登长城怎么样？
B:好主意。
C:太好了。
B:你可以先给我们介绍一下吗？
A:好的。长城是世界奇观之一，现在它并不像古代一样是军事防御，而是作为一个历史古迹欢迎全世界的游客。我们明天会通过导游的介绍知道更多。
B:明天我们什么时候出发？
A:7点怎么样？
C:好的。