您正在看的高中二年级是:Saving the earth。 China.斯密斯一家正安排去中国旅行.

　　---Where is Robert?---He is on a trip in Japan.罗伯特到哪儿去了? 他在日本旅行.

　　She wants to make a trip to Hangzhou.她希望去杭州旅行.

　　If I had money,I would take a trip around the world for at least one time.如果我有钱,我至少要环游世界一次.

　　We shall have a trip of observation.我们将作一次观光旅行.

　　▲表示整数再加半说法: 先说整数,再用and 连接a half. 例: 一只苹果可说 one and a half apples,也可说one apple and a half,或an apple and a half

　　13. When we arrived, we were given printed question papers. We had to fill in the answers in our notebooks.我们到达时, 领到了一些印制好了的问答试卷，我们必须把答案写在笔记本里。

　　▲ printed question papers 制好了的问答试卷 printed是过去分词作定语修饰papers，单个的过去分词作定语时放在被修饰的名词之前，相当于一个形容词。例：

　　the given papers

　　an unknown plant

　　a well known writer

　　a fallen tree

　　There is nobody wounded.没有人受伤。

　　He is one of those invited.他是那些被邀请的人之一。

　　▲ fill in“填写，填入”

　　Fill in the blanks with the proper words.在空格上填上适当的词。

　　Fill in your name and address here.在这儿填上你的姓名和地址。

　　There are one or two lines more on this application which you must fill in.这张申请表上还有一二行你必须填上。

　　▲ fill in填满，填掉

　　The men filled in the hole with dirt.那些人用泥土把洞填满了。

　　▲ fill in暂时代替

　　Can you fill in for Steve tonight as he’s ill? 他病了。你能否今晚代他以一下?

　　---Have you got a new secretary?---No,she is just filling in until Miss Brown gets back from her holidays.你们又雇了一位新秘书?不，她是临时代的，布朗小姐度假去了。

　　14. The purpose of the trip was to record all the wildlife and plants that we could find in the forest.Whenever we found an unknown plant,we had to describe it in our notebooks.这次旅行的目的是把我们在森林里所发现的野生植物都记录下来。每当我们发现一种不认识的植物时，我们就必须在笔记本里加以描绘。

　　▲ Whenever引导时间状语从句，相当于 every time 或 each time。例：

　　Father used to give me some money whenever he came to see me.爸爸每次来看我时，都给我一些钱。

　　I go to the theatre whenever I get the chance.我一有机会，就去剧场看戏。

　　Whenever he stayed home in the evening,he went to bed early.

　　Whenever she looked at Lonny, she smiled.

　　▲ Whenever也可作“在任何……的时候”

　　Come and see me whenever you want to.

　　I told him to come back whenever he wants to.我告诉他无论什么时候只要他想回来都可以回来。

　　【注】whenever引导的从句可以省掉一些成分。例：

　　Use the simple verb whenever possible.只要有可能就应用简单的动词。

　　Robbie had arranged for this man to come whenever needed.

　　15. If none of us knew the name of the plant,we wrote “unknown”in our notebooks.如果我们中无人知道这种植物的名称，我们就在笔记本里写上“名称不详”。

　　▲none是代词，相当于 no one 或 not any, 常同of 连用，构成 none of… 的结构。None作为可数名词用时，指三者或三者以上，用作主语时，谓动用单复数都可以。 none 作为不可数名词用时，谓动用单数，none在句中一般作主语或宾语，不作定语。例：

　　None of her money is left.她的钱都没剩下。

　　None of the answers are (is) right.

　　None of my friends ever come (comes) to see me.我没有一个朋友来看我。

　　She had none of her mother’s beauty.

　　None of this bread looks fresh.

　　【注】none of 后接的复数名词，必须是三个以上，如指两个，则用neither。例：

　　I have three sisters,none of them are at home.

　　I have two sisters,neither of them is at home.

　　【注】在none of+名词的结构中,none不能被 no one/nobody 或 nothing替代,如我们可以说None of the books are (is) his,但不可以说Nothing/No one of the books is his.

　　【注】None but+复数名词作主语时，谓语动词要用复数。例：

　　None but fools believe him.除非傻瓜才相信他。

　　16. The gate into the forest was open,so we entered it.We all started looking for new types of plant.森林入口处的大门敞开着，所以我们就走了进去，大家都开始寻找新的植物品种。

　　▲ enter 是及物动词，意为“进入”， enter后不用介词。

　　It never entered my mind that he could be a thief.

　　She entered the room without making a sound.她一声不响地进了屋。

　　It has been two years since I entered the university.

　　The bullet entered the bone.

　　▲ enter也可作不及物动词。

　　Please do not enter without knocking on the door.没有敲门请不要进来。

　　He rose as she entered.

　　▲ enter也可作为“参加，到里面工作”

　　I refused to enter the discussion.我拒绝参加讨论。

　　If you plan to enter the diplomatic corps,study history and foreign languages.

　　▲ enter into也可表示“开始谈话(讨论)，谈(细节)，缔结(契约，婚姻)”

　　Britain has entered into a new trade agreement with our country.英国和我国达成了一项新的贸易协定。

　　The factory entered into the production of TV set last year.

　　They entered into the particulars of the project.

　　Our chief competitor wishes to enter into dealing with the fir