1、单元重难点集训_集训一_join，join_in，attend与take_part_in_辨析join指加入某个党派或团体组织等，成为其成员之一。如：When did your brother join the army？你的哥哥什么时候参军的？join in多指参加小规模的活动，如球赛、游戏等，常用于日常口语。如：Lets join in the ball game.我们一起参加球赛吧。attend指参加会议、典礼；去上学、听课、听报告等。常用词组：attend a meeting/school/ones lecture。如： Hell attend an important meeting
2、 tomorrow.他明天要参加一个重要的会议。take part in指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥积极作用。如：How many countries will take part in the World Cup？有多少个国家将会参加这次世界杯？.单项选择。(A)1.A lot of athletes went to Brazil to _the Olympic Games.Atake part in Btake offCtake in.用take part in, join, join in或attend的适当形式填空。2He joined the
3、English club last term.3Why didnt you take_part_in Jims party yesterday?4Many very important people will attend the meeting tomorrow.5They will join_in the contest._集训二_ turn_on，turn_off，turn_down与_turn_up辨析_turn on意为“(把水源、煤气、电源灯)打开”，反义词组为turn off。turn off意为“(把水源、煤气、电源灯)关闭”，反义词组为turn on。turn down意为“
4、(把收音机等的音量)关小、调低”，反义词组为turn up。turn down还可意为“拒绝”。turn up意为“(把收音机等的音量)开大、调高”，反义词组为turn down。单项选择。(B)6.Please_ the water when you brush your teeth.Aturn down Bturn offCturn on(A)7.Would you like to attend the farewell party next week，Mr.Huang?Sure，Id love to. I have no reason to _ your invitation.Aturn
5、 down Bturn off Cturn up(B)8.Its getting dark. Could you please _ the light for me?All right. Just a minute.Akeep on Bturn onCtry on(C)9.I love this song by Lady Gaga. Would you _ the TV a bit，please？I cant hear it clearly.Aturn on Bturn downCturn up(A)10.Would you be so kind as to _ your music? I a
6、m preparing for tomorrows speech.Sure. Sorry to disturb you.Aturn down Bturn upCturn on_集训三_ danger,_dangerous,_endangered与_in_danger辨析danger作不可数名词，意为“危险；威胁”。如：Is there any danger of fire？有发生火灾的危险吗？dangerous作形容词，意为“危险的”。如： Its dangerous for children to swim in the river. 对孩子们来说在河里游泳是危险的。endangered作形
7、容词，意为“濒危的；濒临灭绝的”。如：Scientists think that the animal is endangered by pollution.科学家们认为污染导致这种动物濒临灭绝。in danger 是介词短语，意为“在危险中”。根据汉语意思完成句子，每空一词。11他仍在医院，但已经脱离了危险。 He is still in hospital but has been out of danger.12孩子们没有意识到在这河里游泳的危险。 The children didnt realize the danger of swimming in the river. 13大熊猫已经成了一种濒临灭绝的动物。 The giant panda has become an endangered animal.
