Period One　Introduction & Reading and Vocabulary

Ⅰ.重点单词

1．frightening adj.吓人的；可怕的

frighten vt.使惊吓

2．inland adj.内陆的；内地的

land n．陆地

3．process n．进程；过程

4．citizen n．公民，市民

5．dust n．沙尘；灰尘

6．strength n．力量；力气

strong adj.强健的，强壮的

Ⅱ.重点短语

1．cut down砍倒

2．dig up挖

3．be caught in突然遭遇(风暴等)

4．as a result of由于，因为，作为......的结果

5．one after another一个接一个地

Ⅲ.重点句式

1．so...that...如此......以至于......

They are often so thick that you cannot see the sun，and the wind is sometimes strong enough to move sand dunes.

沙尘暴常常很大，以至于遮住了太阳，有时风力大得足以移动沙丘。

2．不定式作主语

"To have been caught in a sandstorm was a terrible experience，" he said.

他说："遇上沙尘暴是一种可怕的经历。"

3．make＋it＋adj.＋to do

The storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see(see)．

沙尘暴有时持续一整天，车辆开得很慢，因为浓浓的尘埃降低了能见度。