2.3 Grammar（Useful Sentences Pattern ）

Useful Sentences Pattern 

1)It+be+adj.+to…

be动词常用有：is,was, were, seem, appears, prove, become

2)It+be+adj.+that…

3)It+be+past participle+ that…

4)…be+as+ adj./adv.+ that…

5）the +comparative adjectives+…， the + comparative adjectives+…

6)too+adj./adv.+(for +n./ pron.)+ to

7)adj./adv. +enough +(for +n./ pron.)+ to…

8)There+ be

9) There+verb+noun

10）Here+ be

11）Here（Then, Hence, Thus）+ verb+noun

12)Other inverted sentence

Should(Had,Were)+ subject+ （not）predicate（subjunctive mood虚拟语气）

Should+subject+predicate（protasis条件从句）

Other:“Never，Only,Not only, Not until, Hardly”

Eg:

Should all my students not work hard,theywould not have passed this exam successfully.如果我的学生没有认真学习，他们是不会通过考试的。

Should all my students not work hard,never would they passed this exam successfully.如果我的学生没有认真学习，他们是不会通过考试的。

“Public English grammar+specialized words” 

高技术化词汇:stress ,strain, simple beam…

半专业词汇:force, work, energy, power,load…

Topic Discussion