[解析]
61.are protected 62.rapidly 63.a 64.strangers 65.cleaned 66.their/his 67.Having 68.or 69.that/which 70.when/while
61.are protected.考查语态.此处指人们外出旅游时担心家的安全,houses and homes 和动词protect是被动关系,全文是现在时,故填are protected.
62.rapidly.考查副词.句意:犯罪事件迅速上升.此处修饰动词goes up要用副词,故填rapidly.
63.a.考查介词.句意:当你去度假时应该记住下面这些事.go on a holiday属于固定搭配 去度假的意思.
64.strangers.考查名词.句意:总是给陌生人你在家的感觉.此处应该题名词"陌生人"strangers.
65.cleaned.考查动词形式.句中snow和动词clean是被动关系,指雪被清理.用过去分词表被动,故填cleaned.
66.their/his.考查代词.此处指让别人把他∕他们的车停在你的车道上.修饰cars用形容词性物主代词,故填their/his.
67.Having.考查动词形式.此处要填的词在句中做主语,故用﹣ing形式Having.
68.or.考查连词.句意:你可以让亲戚或邻居每天帮你拿邮件和报纸.两者是选择关系,故填or.
69.that/which.考查定语从句.句中包含定语从句,先行词是timer指物,在定语从句中做主语,指定时器每天不同时间开关灯,故填关系代词that/which.
70.when/while.考查连词.此处指当你不在时让小偷远离你的家.引导时间状语用when/while.