1. [词根辨识]
举例说明claim及其异形根clamat的构词规律与发音特点。
2. [望文生义]根据已学词缀和词根的知识推测下列单词的词义。
① counterclaim v.
② unreclaimed a.
3. [同义相连]将左栏的单词和右栏中相对应的词义连接起来。
① declamatory a.欢呼的
② proclamatory b.惊叹的
③ exclamatory c.雄辩的
④ acclamatory d.宣言的
⑤ clamorous e.喧闹的
4. [寻根问底]指出下列单词的词根并领会其词义的由来。
① claimant n.提出要求者
② clamant a.喧嚷的；吵闹的
③ quitclaim n.放弃要求（权利）
17. clud, clus [L]=to shut or close关闭
clud和clus是一对同源异形根，词源是拉丁动词claudere，意思相当于to shut（关闭）。clud来自不定式词干claud，常见于英语动词；clus来自动名词词干claus，多见于相应的名词和形容词。
conclude [con-(com-)=thoroughly完全地；clud=to shut关闭；-e→“to shut off thoroughly so as to bring to an end完全关闭，使之结束”→] v.① finish结束：She concluded her speech.她结束了发言。② settle or decide决定；断定：The judge concluded that he was guilty.法官判定他有罪。
conclusion [conclude 的对应名词：conclus=to conclude 结束，决定；-ion n.=the act or result表行为或结果→“the act or result of concluding结束，决定的行为或结果”→] n.① end结束；结局：to come to a conclusion告终②final outcome or decision结论：to draw a conclusion from facts从事实得出结论
conclusive [conclude的对应形容词：conclus=to conclude结束，决定；-ive a.=characterized by有……特点的→“characterized by concluding带有结束或结论特点的”→] a.① final最后的：conclusive decision最后的决定② convincing确定性的：conclusive evidence确凿的证据③ decisive结论性的：a conclusive ruling by the judge法官的裁决
include [in-=in内；clud=to shut关闭；-e→“to shut in关闭在内”→] v.① contain, or enclose包含；包住：The nutshell includes the kernel.果壳包住果仁。② comprise as a part包括：The freight is included.运费包括在内。
▽includable [includ(e);-able a.] a.可包括在内的
inclusive [in-;clus;-ive a.] a.包围住的；包括的
exclude [ex-=out外；clud=to shut关闭；-e→“to shut out关在外面”] v.① keep from entering;bar排除在外；排斥：The club excluded him from membership.俱乐部拒绝吸收他。② expel逐出：An officer was excluded from his position.一个官员被撤职了。
▽excludable [exclud(e);-able a.] a.可除外的
exclusive [ex-;clus;-ive a.] a.排他的；唯一的
preclude [pre-=beforehand 事先；clud=to shut 关闭；-e→“to shut beforehand in order to keep out事先关闭不让进入”→] v.① prevent免除，预防：She explained it in detail so as to preclude all doubts.她对此详加说明，以免产生各种疑虑。② make impracticable阻碍：A prior engagement will preclude me from coming.另有约会在先，我无法前来。
▽preclusive [pre-;clus;-ive a.] a.预防性的；妨碍的
seclude [se-=apart分离；clud=to shut关闭；-e→“to shut oneself apart from others自我关闭，与他人隔离”→] v. shut off from association or influence outside隐居：He almost secludes himself from the society.他几乎与世隔绝。
▽seclusive [se-;clus;-ive a.] a.隐居性的；爱隐居的
occlude [oc-(ob-)=against对抗；clud=to shut关闭；-e→“to shut against going through关住不让通过”→] v. stop up, or obstruct堵塞；闭塞：His imagination was occluded by something.某件事情阻断了他的思路。
▽occlusive [oc-;clus;-ive a.] a.闭塞的
recluse [re-=back退；clus=to shut关闭；-e→“being shut back or away（from active social life）被关在世外的，退居世外的”→] I. a. retired;secluded退居林下的；隐居的：a recluse monk隐居的和尚→Ⅱn. one who lives in a recluse way隐居者
▽reclusion [re-;clus;-ion n.] n.隐居；遁世
reclusive [re-;clus;-ive a.] a.隐居的；遁世的
