3. 显现类：appear,seem,look ect.

2. 感官类：fell,smell,taste,look,sound ect.

1. 变化类：become,go,get,grow,fall,turn ect.

1. It is…that-clause

xii. 26、happen

xiii. 主(人)+happens+to do

xiv. It(形主) +(so)happen +that-clause

xv. 27、allow(vt.)

xvi. a. allow+ 名/形 b. allow+含有不定式的复合宾语

xvii. c. allow+动名词 d. allow+sb.+介词短语/副词

xviii. 28、连系动词的分类：

1. keep on doing sth.反复干……，强调动作的重复

xi. 25、It is…for sb to do sth

318.23、表“许多大量”的几个词组：

i. a great/good many

b) a large/great/good number of +可数名词

i. a good few/quite few

ii. many a

iii. a great/good deal of

iv. a large/great amount of +不可数名词

v. quite a little

vi. a lot of/lots of

vii. a large/great quantity of +可数名词或

viii. large quantities of 不可数名词

ix. plenty of

x. 24、keep doing sth.一直干，后跟状态性动词

317.22、 a.have sb doing 使某人做某事，表动作一直进行

i. b.have sb do 使某人做某事，表动作完成或可能发生

ii. c.have sth to do 有某事要做，have意为“有，拥有”

iii. d. have sth done 使某事被做，done表被动动作

316.be worth+ be worthy + of being值得做

a) doing 值得的 to be done值得做

1. n.值多少钱 of sth值得，配得上

315.21、worth与worthy