This is the reason _______ he was absent.
A. that B. which C. why D. what
Listening to loud music at rock concerts ____ caused hearing loss in some teenagers.
A. is B. are C. has D.have
______ the task is difficult, they managed to complete it on time.
A. Because B. Therefore C. As D. Though
That’s where I _______ live when I was a child.
A. used to B. was used to C. was using to D. am used to
Though lacking________, the young teacher manages the class very well.
A .experience B. experiences
C. experienced D. experiencing
书面表达（满分25分）
最近有科学家宣布他们已经成功的克隆了第一例人类的胚胎，此举引发了人们的极大争议与广泛关注。你们班级的同学也就此进行了激烈的讨论。请你根据下表所示的信息，将讨论结果以信件形式告之你的朋友，并表达自己的观点。
|
话题 |
Human cloning: To be or not to be? |
|
|
观点及支持率 |
35%: pro-cloning |
65%：anti-cloning |
|
理由 |
1.克隆出来的人可以帮我们分担自己的事务，如做作业等。 2.我们可以利用克隆人的器官来治疗病人。 |
1.克隆人是不道德的，克隆出来的人也是人，很有可能会不受我们控制，因而我们不该自己制造麻烦。 2.克隆人会使得人口数量剧增，造成很多社会问题。 |
|
自己观点 |
1. ……； 2. ……. |
注意：字数120左右（开头和结尾已给出，不记入总字数）
Dear Tom,
A recent announcement by scientists that they have successfully cloned the first human embryo has caused much debate and has shocked many people around the world. Our class
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Yours
Jack
