1.It has not only given us important information about prehistoric Asian societies, but also has provided amazing evidence about the process of evolution.

它不仅为我们提供了史前亚洲社会的重要信息，还为我们提供了人类进化历程中惊人的证据。 not only ... but also ..."不但......而且......，不仅......还......"，在句中连接两个并列的谓语，还可连接两个并列的主语、宾语、表语、状语等。 Internet not_only expands our horizons, but_also saves us time and energy.

因特网不仅开阔了我们的视野，而且也节省了我们的时间和精力。 2.Some areas are almost completely covered in weeds, causing serious damage.

一些地方杂草丛生，破坏不堪。 现在分词短语作结果状语，表示自然而然的结果。 He studied hard, thus getting_high_grades.

他学习努力，因此得了高分。 　　

　　1．(教材P71)It is famous for its unique classical gardens and there are more than a hundred preserved ancient buildings in the city.

　　这座城市以独特的古典园林而闻名，有一百多处受保护的古代建筑。

　　preserve v. 保护；保存；维护n. [C]保护区

　　(1)preserve ... from ...　　　 保护......免受......

　　(2)preserver n. 保护人，维护者

　　preservation n. [U]保护，维护

　　①We have taken effective measures to preserve our natural resources.

　　我们已采取有效措施保护自然资源。

　　②We should preserve the children from being hurt.

　　 我们应保护这些孩子免受伤害。

　　③The paintings were in an excellent state of preservation (preserve)．

　　这些画保存得非常好。

　　[名师点津]　表示"保护/阻止......免受......"的短语荟萃：

　　①stop/prevent/keep sb. from (doing)　 阻止某人做

　　②save sb. from ...　　　　　　 救助某人于......中

　　③free sb. from ... 使某人免受......

　　④defend sb. from ... 保卫某人免受......

　　⑤protect sb. from/against ... 保护某人免受......

　　2．(教材P72)These discoveries proved the existence of a human species who lived in the area between 700,000 and 200,000 years ago.

这些发现证明：在七十万到二十万年前就有人类生活在该地区。