课件10张PPT。Unit 4 Sharing学习目标展示背景知识链接文章大意：本文介绍了一个名叫Peter Hodes的人从事的有关干细胞传递的志愿者工作，并主要讲述了他的一次难忘的经历。在传递干细胞的过程中，他深刻地意识到时间就是生命。
I am Peter Hodes，a volunteer stem cell courier .Since March 2012，I’ve done 89 trips — of those,51 have been abroad.I have 42 hours to carry stem cells(干细胞)in my little box because I’ve got two ice packs and that’s how long they last.In all，from the time the stem cells are harvested from a donor(捐献者)to the time they can be implanted in the patient，we’ve got 72 hours at most.So I am always conscious of time.I had one trip last year where I was caught by a hurricane in America.I picked up the stem cells in Providence，Rhode Island，and was meant to fly to Washington then back to London.But when I arrived at the check-in desk at Providence，the lady on the desk said: “Well，I’m really sorry.I’ve got some bad news for you—there are no flights from Washington.” So I took my box and put it on the desk and I said: “In this box are some stem cells that are urgently needed for a patient—please，please，you’ve got to get me back to the United Kingdom.” She just dropped everything. She arranged for a flight on a small plane to be held for me，re-routed(改道)me through Newark and got me back to the UK even earlier than originally scheduled.
For this courier job，you’re consciously aware that in that box you’ve got something that is potentially going to save somebody’s life.
课件15张PPT。Unit 2 Robots单元重点知识回顾 off
out
away
down for
to do to to to to adjustable
adjustment in with in out
up
off to for with with for for 商定……，安排…… to donation donator to do sth. for volunteer for 购买 to among distribution on/upon on 经营一家公司
Ⅱ．教材原句
1．Sometimes I wonder how relevant chemistry is to these students， ______________ will be going back to their villages after Year 8 anyway.
有时候，我真想知道，化学与这些学生们究竟有多大关系。无论如何，他们当中的大多数人学完八年级以后就要回到他们的村庄去了。
2．To be honest,I ________________ I’m making any difference to these boys’ lives at all.
说实在的，我真不知道我是否会让这些男孩子们有所改变。
most of whom doubt whether
3．Everyone ______________ a relative of Tombe’s.
每个人看上去都是汤贝家的亲戚。
4． ________ the fire was going,he laid stones on it.
火着起来后，他往火里扔了几块石头。
5． __________ he didn’t want to see her?
如果他不想见她怎么办呢？seemed to be Once What if Ⅲ．单句语法填空
1． ___________ (order)over a week ago,the books are expected to arrive any time now.
解析：order和books之间是逻辑上的动宾关系，故用过去分词表示被动和完成，在此相当于原因状语从句because they were ordered...。句意：(因为)那些书是一周多之前订的，现在随时有可能送到。
2．Some schools will have to make _______________ (adjust)in agreement with the national soccer reform.
解析：make adjustments“作出调整”。句意：为了与国家的足球改革保持一致，一些学校将必须作出调整。Ordered adjustments
3．Video games can be a poor influence if ________ (leave)in the wrong hands.
解析：leave与其逻辑主语Video games之间是被动关系，故用过去分词。if (they are)left...是状语从句的省略形式。故填left。句意：电子游戏如果使用不当就会产生不良影响。
4．He was the nicest boy she had ever met， _____________ she wouldn’t have fallen in love with him.
解析：otherwise“否则；要不然”。句意：他是她见过的最好的男孩，要不然她也不会爱上他。
left otherwise
5．She walked down the platform to catch the train to New York ___________ (feel)both excited and nervous.
解析：此处分词作状语说明主语的状态。因feel与句子主语she为主动关系，故用现在分词。句意：她走下站台，去赶去纽约的火车，心中充满激动和紧张。
feeling 6．—Why didn’t you ring me up?
—Sorry,I forgot your phone number.Otherwise,I ___________________ (ring) you up long before.
解析：根据句意及句中的“otherwise”可知，该句表达了含蓄条件，且与过去的事实不符，故主句应使用“would/could/should/might＋have done”形式。这里用would，表示“将；会”，符合句意。句意：——你当时为什么不给我打电话？——抱歉，我忘了你的电话号码了。要不然我早就给你打电话了。would have rung
7．As time goes on,the climate is warmer and warmer and many rivers and lakes are drying ________.
解析：dry up“干涸”。句意：随着时间的推移，气候越来越暖和，许多河流和湖泊在逐渐干涸。
up
