必修二unit4词汇、短语练习及讲解

1、1.If their habitat is threatened or they cannot find enough food, their numbers may decrease. v. & n. 降低，减少如果它们的栖息地受到威胁或它们找不到足够的食物，它们的数量就会减少。Its reported that the population of that country has increased _ more than 1.3 billion and _0.5% every year in the past ten years. 据报道，那个国家的人口在过去的十年间每年增长0.

2、5%，现已增至13亿。bytoThe number of students in each class is _the decrease. 每个班学生的数量在减少。The number of new students decreased _1,200 _900 this year. 今年新生人数从1,200减少到900.onfromtoAs a result these endangered animals may even_. 结果，这些濒危的动物甚至可能会灭绝。die outdie out 灭亡，灭绝；灭亡，灭绝； （风俗、习惯等）逐渐消（风俗、习惯等）逐渐消失失This species

3、has nearly_ because its habitat is being destroyed. 因栖息地正受到破坏，这一物种已濒临灭绝。Many old customs have_ for they are out of date.许多旧的习俗已经消失，因为他们已经过时了。died out died out too much hunting in the 1950s 二十世纪五十年代的过度捕杀打猎打猎；猎取；猎取 go hunting去打猎 He spent the whole day _deer. 他一整天都在猎取鹿。hunt for寻找某物 huntfor sb./sth. 搜索某

4、地寻找某人/某物They_ the wood _the lion escaping from the zoo. 他们搜遍树林寻找从动物园里逃出来的狮子。hunting huntedforThey are still_ the missing girl, who disappeared last Sunday after attending her friends birthday party.他们仍在寻找那个走失的女孩，她在上个星期天参加完朋友的生日晚会后就不见了。hunting for about 30-40 remain after being left in peace with no

5、hunting 停止猎杀使其平静地生活后大约剩下了3040只in peace (=peacefully)和平的；和睦的；安静的P l e a s e l e t m e g o o n w i t h m y study_.请让我继续安静地学习。in peace拓展：拓展：in 表示状态时，其后常接抽象名表示状态时，其后常接抽象名词构成固定短语：词构成固定短语：in trouble 在困境中在困境中 in order 井然有序井然有序 in difficulty 处于困难中处于困难中 in doubt 怀疑怀疑 in danger 处于危险中处于危险中why are they in dange

6、r of disappearing? 他们为什么处于灭绝的危险中？be in danger of 面临的危险Hes _losing his job if he goes on like this. 他这样下去会丢点工作的。in danger of Daisy responded immediately. 戴茜立刻回答 respond to 回答/应答，对做出答复； respond to(with) 对报以，回报response n. 回答；回复回答；回复 make (a) response to 回答，对回答，对 做出回应做出回应She responded_ my message_ a pho

7、ne call. 她收到我的信息时，给我回了个电话。They _our demands. 他们没有对我们的要求给出答复。towithmade no response to In relief Daisy burst into laughter 戴茜如释重负地大声笑起来 in relief 如释重负；松了口气 to ones relief 令某人感到欣慰的是 burst into+n.=burst out+v. ing 突然来 burst into tears/ laughterburst out crying/laughing 突然哭/笑起来I smiled _after I heard I

8、had passed the examination. 听说我已经通过了考试，我如释重负地笑了。_, the little girl got out of danger. 令我们感到欣慰的是，小女孩脱离了危险。Hearing the story, we_. = Hearing the story, we_. 听了这个故事，我们笑起来。in reliefTo our reliefburst into laughterburst out laughingFarmers hunted us without mercy. 农民们残忍地捕杀我们。mercy n. 仁慈；宽容；怜仁慈；宽容；怜悯悯 wit

9、hout mercy 残忍的残忍的show mercy to sb.(=show sb. mercy) 同情、怜悯某人 have/take mercy on sb. 怜悯某人 beg for mercy 祈求宽恕The kind woman always shows mercy_ the poor children. 那个好心的女人总是怜悯那些贫穷的孩子们。Have mercy _him. He is only a child after all. 仁慈点，毕竟他只是个小孩子。toon1.They allowed tourists to hunt only a certain number o

10、f animals if they paid the farmers.如果游客付给农民钱的话，他们允许游客猎取一定数量的动物。(1)certain adj. 某个；某一; (作前置定语)There is a _Mr. Smith on the phone for you. 有位史密斯先生打电话找你。The library is only open at_ times of day. 图书馆只在一天的某些时段开放。certaincertain(1)确定的，一定（作表语，相当于sure） be certain to do 一定会做某事 be certain of/about 对有把握，确信With

11、 careful preparation, he is certain_; that is, he is certain_.由于精心准备，他确信会成功，也就是说他一定会成功。He is certain to win the race. = It is certain that_. 他肯定能赢这场比赛。of successto succeedhe will win the race1.“Im protecting myself from mosquitoes,” it replied. 它回答说：“我这样做可以防止蚊子叮咬。”Protectfrom/against 保护免受; 使免受We set

12、 up a wildlife reserve to _animals _being hunted. 我们设立野生动物保护区，保护动物免受猎杀。protectfromIt contains a powerful drug which affects mosquitoes. 它含有一种强效的药物可以防止蚊子叮咬。contain vt. 包含；容纳；装有；含有Im glad to find the book which _all the information I need. 我很高兴找到了那本包含我所需要一切信息的书。The bottle _olives.瓶子里装着橄榄。The_ _many ki

13、nds of fruits, _apples/ apples_. containscontainscontainercontainsincludingincludedaffect v. 影响 affect = have an effect on Its all too easy to _by our parents. 我们很容易受父母影响。E l e c t r o n i c g a m e s d o n t h a v e _adults but _students a great deal. 电子游戏对成人的影响不大，但对学生的影响很大。be affectedmuch effect o

14、n affectYou should pay more attention to the rainforest where I live and appreciate how animals live together. 你们应该多关注我生活的热带雨林，并且懂得热带雨林的动物是如何在一起生活的。pay attention to 注意，关注注意，关注 pay much/more/little/no attention 非常/更多/很少/不/关注focus ones attention on 将注意力集中于 turn ones attention to 将某人的注意力转向 You should _

15、what the teachers say in class. 你应该在课堂上多注意老师讲的内容。_has been paid to_ the environment. 人们对保护环境已投入很多注意力。May I have your attention, please? = Attention, please! 请注意！pay more attention to Much attentionprotectingappreciate v. 理解，意识到，领会；欣赏，赏识，重视；感激，感谢appreciate sth. 感激；欣赏感激；欣赏appreciate (ones) doing 感激（某人

16、）感激（某人） 做某事做某事 would appreciate it if. 要是要是将不将不胜感激胜感激We didnt fully appreciate that he was seriously ill. 我们没有充分认识到他的病情很严重。Her abilities are not fully appreciated by her employer. 她的才干尚未得到雇主的充分赏识。I would appreciate it if you would like to teach me how to use the computer. 要是你能教我使用电脑，我将会非常感激。I really

17、 appreciate your coming. 你能来我非常感激。What must be done if wildlife protection is to succeed?succeed v. 成功；接替，继承 success n. 成功 successful adj. 成功的 successfully adv. 成功地；圆满地succeed in (doing) sth. 成功地做某事He _the entrance examination and was admitted to Hong Kong University. 他成功地通过了入学考试，被香港大学录取了。succeeded

18、in (passing) 1.What should be done to punish people who do harm to the animals?harm n. & vt. 伤害；损害 do harm to sb./ do sb. harm 伤害某人 harmful adj. 有害的 harmless adj 无害的Noise can _our health. = Noise can _our health = Noise can _our health. 噪音会损害我们的健康harmdo harm to be harmful to1.They lived on the earth tens of millions of years ago, long before humans came into being千百万年前，恐龙就在地球上生活，比人类的出现要早得多come into being（无被动语态，也不能用于进行时） 形成；产生；出现come into power 掌权 come into use 开始被使用 come into action 开始行动The law has helped many blac