资料简介
Unit 5 Look into Science
Lesson 29
Ⅰ. 根据汉语提示写出下列单词或短语
1. 复杂的 adj. ________
2. 双胞胎之一; 孪生儿之一 n. ____
3. 重复; 复述; 背诵 v. ______
4. 模式; 形式 n. _______
complex
twin
repeat
pattern
5. 确认; 鉴别 v. _______
6. 指示; 说明 n. __________
7. blue 意为“蓝色”, print意为“印刷品”, 其合成词
_________, 意为“蓝图”。
8. general为形容词, 意为“总的; 普遍的”; 其副词形式
为“________”
identify
instruction
blueprint
generally
9. grand为形容词, 意为“(外)孙的, (外)祖的”;
_________意为“孙子, 外孙”; _____________意为“
孙
女, 外孙女”。
10. 除……之外 _________
11. 与……相关 ___________
12. 由……引起 ___________
13. 数十亿计的 _________
grandson granddaughter
except for
be related to
be caused by
billions of
Ⅱ. 根据汉语提示完成下列句子
1. 一般而言, 蓝图就是一幅图纸, 它显示如何用不同的
部分构成一座房子。
__ _______, a blueprint is a drawing ____ ______ how
to put a house ________ ____ many different parts.
In general that shows
together with
2. 但是创造一个生物比盖一座房子要复杂得多。
But ________ a living thing is far _____ ________ than
building a house.
building more complex
3. 对于自然界来说, 改变生物的DNA以使他们适应他
们生存的世界要花费数百万年的时间。
It _____ _______ __ _____ for nature to change the
DNA in living things __ _____ _____ __ the world they
live in.
takes millions of years
to make them fit
4. 从你的DNA中, 科学家不但可以辨认出你, 而且能够
辨认出和你有(血缘)关系的人。
From your DNA, scientists can identify ___ ____ you,
___ ____ people ____ ___ related to you.
not only
but also who are
5. 当你有(外)孙子或(外)孙女时, 他或她会拥有你的
DNA。
______ ____ _____ a grandson or granddaughter, he
or she ____ _____ your DNA.
When you have
will have
Ⅲ. Read the text and answer the questions
1. Can the scientists change your DNA now?
_______________
2. What influences your height?
_____
No, they can’t .
DNA.
要点1 except for 除……之外
Step 1难点·探
(1)在什么情况下用except for?
(2)“除……之外”还有几种说法?
Step 2语境·悟
*Except for some twins, every living thing has its own
unique DNA.
除了一些双胞胎外, 每个生命都有自己独特的DNA。
(P74)
*He is a good person except for his temper.
除了脾气之外, 他是个很好的人。
Step 3知识·得 except for的用法
except for意为“除……之外, 要不是由于”, 它要求排
除的是不同类的。常用于对整体情况进行说明后, 再对
细节纠正、说明, 表示对主要部分的肯定和对局部的否
定。含有惋惜, 美中不足之意。
【拓展】 “除……之外”的几种说法
except
介词, 意为“除了……之外”,
表示同类事物间的排除关
系不包括except后的宾语在
内, 含有“减去”的意思, 一般不用于句首
besides
介词, 意为“除了……之外,
还有”, 包括besides后面
的宾语在内, 含有“加上”
的意思
but
意为“除……之外”, 常与no, all, every,
each, none, nobody等词连用, 有时可与
except互换
*He is good at singing besides dancing.
他除跳舞之外, 还擅长唱歌。
*Nobody can speak French but me in my class.
在我班, 除了我之外, 没人会说法语。
*He can do well in all the subjects except art.
除了美术之外, 他可以学好所有的学科。
Step 4考点·练
①用except, except for, besides填空。
a. 除了几处语法错误外, 你的作文写得很好。
Your composition is good ______ ___ a few grammar
mistakes.
b. We all went to the zoo ______ Li Ming.
c. _______ Tom, five other boys also pass the exam.
except for
except
Besides
( )②—How was your trip yesterday?
—It was great ________the hot weather. Everyone had
a good time ________Fred. He broke his camera.
A. except; except B. except; except for
C. except for; except D. except for; except for
C
要点2 Some health problems can be caused by
problems in your DNA. 一些健康问题是由你的DNA问
题引起的。(P74)
Step 1难点·探
(1)你会分析句子成分吗?
(2)这是什么语态?
Step 2句型·悟
这是一个简单句。Some health problems作主语, can
be caused 作谓语, 这是含有情态动词的被动语态。句
子结构如下所示:
Step 3考点·练
( )①(2018·阜康米泉中考) The boy thinks he
shouldn’t ________what to do because he is 18 now.
A. tell B. tells
C. telling D. be told
D
( )②—Tom is always careless with his
schoolwork. Could you help him?
—No problem! I think he ________to think twice
before starting.
A. should be told B. can tell
C. should tell D. can be telling
A
③ We should hold a meeting to talk about the party.
(改为被动语态)
A meeting ______ ___ ____ to talk about the party. should be held
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