1.acquiesce v.同意默許(to agree or consent quietly without protest; consent)

例:Where once the union had acquiesced to the prejudices of its English-speaking members by supporting the imposition of an alien tax on immigrant workers, after 1897 the United Mine Workers made a determined effort to enlist lta¨anS and Slavs in its ranks.

派生詞:acquiescence( n.默許 )

2.acquire v.取得，獲得( to come into possession or control of)

詞根記憶：ac+quire(追求)一不斷追求一獲得

例:The United States acquired sovereignty over New Mexico in 1848.

派生詞:acquisition(n.獲得;采購)

3.acquisition n.獲得物( something or someone acquired or gained)

詞根記憶:來自acquire(v.獲得)

例:One example of social learning js the acquisition of preferences for novel foods.

同根詞：acquisitive(a.貪得的；想獲得的)

4.acreage n.英畝數(shù)( area in acres)

詞根記憶:來自 acre(n.英畝)

例:Because of improvements in agricultural technology, the same amount of acreage produces double the number of apples.

5.activate v.使活動，激活( to make sth. active)

詞根記憶：act(行動)+ivate(使成為)一使動起來一激活

例:Protein synthesis begins when the gene encoding a protein is activated

派生詞:activation(n.活化，激活)

同根詞：active(a．積極的，主動的)；activism(n.行動主義，激進主義)

6.activism n.行動主義；激進主義(a doctrine or practice that emphasizes direct vigorous action)

詞根記憶：act(行動)+iv+ism(主義)一行動主義

例:Her activism predated her husbands presidency and her projects differed from his.

同根詞：active(a.積極的)

7.activist n.積榜分子( one that is active)

詞根記憶：來自active(a.積極的：主動的)

例:community activist 社區(qū)積極分子

同根詞：activity(n.活躍；活動)

8.acute a.靈敏的( sensitive)；嚴重的(serious)

詞根記憶：acu(尖端)+te一尖端的一靈敏的

例:The sense of smell in adult female rats is more acute than that in rat pups. //an acute parking shortage 停車位嚴重不足

同根詞：acumen(n.敏銳)

9.adapt v.（使）適合，逅應（to make sth. fit often by modification）

詞根記憶：ad+apt(適當?shù)?一使適合

注意：adopt(v.采用;收養(yǎng))

例:A biocontrol agent may adapt in unpredictable ways, so that it can feed on or otherwise harm new hosts.

派生詞:adaptability(n.適應性)；adapted(a.合適的)；adaptive(a.適應的)

10.adaptation n.適應( adjustment to environmental conditions)；改編(something that is adapted)

詞根記憶:來自adapt(v.使適應)

例:The disadvantages of an adaptation to a particular feature of an environment often outweigh the advantages of such an adaptation.

同根詞：adaptive(a.適應的；適合的)

1.acquiesce v.同意默許(to agree or consent quietly without protest; consent)

例:Where once the union had acquiesced to the prejudices of its English-speaking members by supporting the imposition of an alien tax on immigrant workers, after 1897 the United Mine Workers made a determined effort to enlist lta¨anS and Slavs in its ranks.

派生詞:acquiescence( n.默許 )

2.acquire v.取得，獲得( to come into possession or control of)

詞根記憶：ac+quire(追求)一不斷追求一獲得

例:The United States acquired sovereignty over New Mexico in 1848.

派生詞:acquisition(n.獲得;采購)

3.acquisition n.獲得物( something or someone acquired or gained)

詞根記憶:來自acquire(v.獲得)

例:One example of social learning js the acquisition of preferences for novel foods.

同根詞：acquisitive(a.貪得的；想獲得的)

4.acreage n.英畝數(shù)( area in acres)

詞根記憶:來自 acre(n.英畝)

例:Because of improvements in agricultural technology, the same amount of acreage produces double the number of apples.

5.activate v.使活動，激活( to make sth. active)

詞根記憶：act(行動)+ivate(使成為)一使動起來一激活

例:Protein synthesis begins when the gene encoding a protein is activated

派生詞:activation(n.活化，激活)

同根詞：active(a．積極的，主動的)；activism(n.行動主義，激進主義)

6.activism n.行動主義；激進主義(a doctrine or practice that emphasizes direct vigorous action)

詞根記憶：act(行動)+iv+ism(主義)一行動主義

例:Her activism predated her husbands presidency and her projects differed from his.

同根詞：active(a.積極的)

7.activist n.積榜分子( one that is active)

詞根記憶：來自active(a.積極的：主動的)

例:community activist 社區(qū)積極分子

同根詞：activity(n.活躍；活動)

8.acute a.靈敏的( sensitive)；嚴重的(serious)

詞根記憶：acu(尖端)+te一尖端的一靈敏的

例:The sense of smell in adult female rats is more acute than that in rat pups. //an acute parking shortage 停車位嚴重不足

同根詞：acumen(n.敏銳)

9.adapt v.（使）適合，逅應（to make sth. fit often by modification）

詞根記憶：ad+apt(適當?shù)?一使適合

注意：adopt(v.采用;收養(yǎng))

例:A biocontrol agent may adapt in unpredictable ways, so that it can feed on or otherwise harm new hosts.

派生詞:adaptability(n.適應性)；adapted(a.合適的)；adaptive(a.適應的)

10.adaptation n.適應( adjustment to environmental conditions)；改編(something that is adapted)

詞根記憶:來自adapt(v.使適應)

例:The disadvantages of an adaptation to a particular feature of an environment often outweigh the advantages of such an adaptation.

同根詞：adaptive(a.適應的；適合的)