【重点句型讲解】

    1．You have to wear waterproof clothing，a helmet and a life jacket，just in case your raft gets turned upside down.

    你得身着防水的服装，戴上头盔，穿上救生衣，以防橡皮筏倾翻或者沉入水中。

    in case意思是“以防万一”，既可以用作连词引导条件状语从句也可以用作介词短语用在句末，作介词短语接宾语需要加of，即in case of.。如：

    Keep the window closed in case it rains.

    把窗户关好以防下雨。

    It may rain；you'd better take an umbrella in case.

    可能要下雨，你最好带把伞，以防万一。

    In case of fire，call 119．

    万一着火，拨打119。

    2．We'll live with the local people in their village，and eat and drink whatever they do，including cow's blood！

    我们要跟当地的村民生活在一起，不管他们吃喝什么我们就吃喝什么，包括牛血！

    whatever在此句中引导的是宾语从句；whatever意思是“无论什么”，它既可以引导宾语从句、主语从句又可以引导让步状语从句；在此句中whatever引导的是宾语从句。另外和whatever有相同用法的还有whichever，whoever。

    I believe whatever you say.

    我相信你所说的一切。

    Whatever you say，I will believe you.

    无论你说什么，我都相信你。

    Whoever wants to enter the room must answer a question.

    无论谁要进这个房间必须回答一个问题。

    Whoever wants to enter the room，he must answer a question.

    无论谁要进这个房间，他都必须回答一个问题。

    3．We'll try to get as close as possible to the animals，even though they're dangerous，so that I can take some really good photos.

    尽管这些动物很危险，我们还是要试图尽可能地靠近它们，这样我就有可能拍到一些真正的好照片了。

    so that在此句中引导的是目的状语从句，意思是“以便”，它既可以引导目的状语从句又可以引导结果状语从句。引导目的状语从句时，常常和can, could, may, might, will, would等情态动词连用。引导结果状语从句时，so that前面常用逗号和主句隔开。

    We went to the cinema early so that we could get good seats.

    我们提前去电影院以便我们能坐到好位置。

    We went to the cinema very early，so that we got good seats.

    我们很早就去了电影院，结果我们坐到了好位置。

    4．Do you think it is worth risking your life for adventures？

    你认为值得冒着生命的危险去探险吗？

    “It is worth doing…”在这个句型中It是个无意义的引导词，此句型的意思是“做某事是有价值的”。另外，worth后面还可以接金钱、名词或动词的ing形式作宾语，但是动词的ing形式用主动形式表示被动含义。

    The necklace she borrowed from her best friend is worth 1 000 dollars at most.

    她从她最要好的朋友那里借来的项链最多值1000美元。

    I think the park opened last month is worth a visit.

    我认为上个月开放的公园值得一看。

    I feel that the films directed by Steven Spielberg are worth seeing.

    我认为史蒂芬·斯皮尔波格执导的电影值得一看。

    5．When used in this way，we want to indicate that something will happen naturally.

    当我们用这种方式（来表达），我们是想说明某件事会在将来很自然地发生。

    when, while, once；if, unless；although, though, even if 引导的时间状语从句、条件状语从句、让步状语从句中，①如果从句与主句主语一致，②而且从句谓语中包含be, 那么从句中的主语和be动词皆可省略。

    When heated，water will turn into gas.

    水被加热时就会变成蒸汽。

    Watch out for cars while crossing the street.

    过马路时当心车辆。

    I won't go to his party unless invited.

    除非被邀请，否则我就不去参加他的晚会。

    6．As you can see，my schedule for June is full and I cannot go to London for the festival.

    你看，我6月份安排得满满的，我不能去伦敦参加旅游节了。

    as是关系代词，引导非限制性定语从句，指代整个主句，意思为“正如”，as在从句中可作主语或宾语，as引导的非限制性定语从句放于主句前后皆可。

    As you expected，they completed the project on time.

    正如你所预期的那样，他们准时完成了那项工程。

    7．In this perfect world lived people who had discovered how to stay young forever.

    在这个完美世界里居住着的人们发现了永葆青春的秘密。

    这是一个倒装句，倒装的原因有两个：第一是因为句子的主语太长，使用倒装语序使得句子结构平衡；第二是因为表示地点状语的介词短语in this perfect world放于句首，所以需要用倒装语序。

    On the wall hang two pictures by Pablo Picasso.

    墙上挂着两幅毕加索的画。

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