根据词性和汉语提示，写出下列单词
1.concentrate vt.& vi.集中(注意力，思想等)；全神贯注→concentrated adj.全力以赴的→concentration n．专心；专注
幼儿园中班古诗2．concern n．担心；关心 vt怎样做包子.使担忧；涉及；关系到→concerned adj.担心的，忧虑的；关注的，关切的
3．energy n．精力，活力→ energetic adj.精力充沛的，充满活力的
4．effect n．效果，作用；影响→effective adj.有效的；生效的
5．frighten v．使惊恐，吓唬→frightened adj.害怕的，惊吓的，受惊的→frightening adj.令人恐惧的；令人害怕的
1．skip vt.不做(应做的事情等)；跳过vi拼音u加两点.略过；跳绳；蹦蹦跳跳地走；快速转移
①The girls were skipping in the playground. 跳绳；蹦蹦跳跳地走
②She decided to skip the afternoon's class. 不做(应做的事情等)
③You can skip the next chapter if you have covered the topic in class.
跳过，略过
④She kept skipping from one topic of conversation to another. 快速转移
2．concerned adj.担心的，忧虑的；关注的，关切的；感兴趣的
假如没有你①Everyone is concerned about the future of his country. 关注
②She was concerned that she might miss the turning and get lost. 担心
③They were concerned with how the other women had dresd. 感兴趣的
Words and Phras
concentrate vi.& vt.集中(注意力、思想等)；聚集；全神贯注
(教材P45) She told me she had trouble concentrating in class.
她告诉我她上课注意力不集中。
[例] I can't concentrate with all that noi going on.
吵闹声不绝于耳，我无法集中精神。
[归纳拓展]
(1)concentrate on/upon (doing) sth. 专心(做)某事
concentrate one's mind/attention/energy/efforts on
集中注意力于；全力以赴于
(2)concentration n. 集中精力；专心
[即学即练] 单句语法填空/完成句子
五好学生①You must concentrate your attention on improving(improve) your English.
②You should concentrate your mind on/upon finishing the homework.
③Some people take exerci lessons to improve their concentration (concentrate)．
④The boy found it hard to concentrate his attention on his study．
这个男孩发现集中注意力学习很困难。
concerned adj.担心的，忧虑的；关注的，关切的
(教材P45) Health experts are concerned about the figures.
健康专家对这些数字表示担忧。
[例] People are concerned about social inequality.
人们很关注社会不平等问题。
[归纳拓展]
(1)be concerned about/for 对……感到担心
be concerned with 与……有关
(2)concern n. 关心，关注；关系；
vt. 与……有关；使担忧
concern onelf about/with 关心，担心
(3)concerning prep. 关于，有关
[即学即练] 单句语法填空/完成句子
①Her latest documentary is concerned (concern) with youth unemployment.
②They show great anxiety concerning(concern) their retirement allowance.
③Concerned(concern) about the student，the teacher gave his mother a call.
④As far as I am concerned，the young man's design isn't attractive at all.
在我看来，这个年轻人的设计一点也不吸引人。
effect n．影响；效果，作用
(教材P45) They are increasing their efforts to educate teenagers about the side effects of losing weight too quickly.
他们正加大力度教育青少年了解过快减肥的副作用。
[例] The suggestions will soon be put into effect.
这些建议即将付诸实施。
[归纳拓展]
(1)have an effect on＝have an influence on＝have an impact on
对……有影响
put/bring...into effect 使某物开始使用
in effect 事实上；实际上
take effect 生效；奏效
come into effect 开始实施；开始生效
side effect 副作用
(2)effective adj. 有效的
集腋成裘
(3)affect v. 影响；感动
[即学即练] 单句语法填空/完成句子
①The government should take some effective(effect) measures to reduce pollution.
②The two systems are，in effect，the same.
③They have a more powerful effect on the feeling of a space.
④The new law takes effect/comes into effect from tomorrow.
新法令明日起生效
prove linking v．后来被发现是 vt.证明，证实
(教材P45) The socalled “quickfix methods”prove to be harmful to teenagers.
这些所谓的“速效法”被证明对青少年有害。
[例] She was determined to prove everyone wrong.
她决心证明大家都错了。
[归纳拓展]
prove a point 证明一个观点
It is proved that... 据证实……
prove...to... 向……证明……
[即学即练] 单句语法填空/完成句子
①The book about education of the youth has proved to be(be) very successful.
老奶油蛋糕②I woke up sweating and nervous，but ready to prove something to 烤箱的英文mylf.
③I have to prove mylf as a respectable，balanced person.
④ It is proved that the new medicine has side effect.
