Unit 10
Cloning,Good Science or
Baaaad Idea
Background Information
Text Analysis
Language Points
I,Background Information
II,Text Analysis
III,Language Points
Cloning,Good Science or
Baaaad Idea
Clones are a result of asexual or
vegetative propagation,
克隆意为无性繁殖,
Clones are a result of asexual or
vegetative propagation.
克隆 意为无性繁殖,
Dolly
Cloned animals
Text Analysis
A Science Report
Formula,
--- first,introduction of a new thing;
--- then,opinions on the new thing from
all aspects,sometimes including its
advantages and disadvantages;
--- at last,the author’s comment on it,
Text Analysis
Part 1 ( Para.1-3) Cloning and its
relevant information
Part 2 (Para.4-9) The development of
cloning
Part 3 (Para.10-18) Reaction to cloning
from all aspects
Para,1 What is cloning?
Para,2 Who invented it?
Para,3 Should scientists be allowed to
clone animals and humans? Is cloning
an ethical and dangerous --- or is it a
valuable research tool?
Part 1 ( Para.1-3)
Cloning and its relevant information
Part 2 (Para,4-9)
The development of cloning
development
Danish scientist Wilmut
His efforts
All attempts at cloning were largely
unsuccessful until 1984.
That’s when a scientist in Denmark
separate cells from a sheep’s embryo.
Unlike a skin cell,an embryo is on its way
to becoming a complete living thing,
The Danish scientist combined an embryo
cell with an egg cell from another sheep.
implanted the fused cell into a grown lamb.
Use cells from the udder of an adult sheep.
Found a way to reprogram an udder cell
and make it grow into a new cloned lamb.
An amazing fact,Dolly has no biological
father.
Dolly
Study reproductive science for more than
two decades.
Of 277 udder cells he fused with egg cells,
only 30 began to develop into embryos.
Implant 29 of those into female sheep,
Only one adult gave birth to a lamb.
Wilmut
ethicist animal-rightactivities
author
general
reactions
Part 3 (Para.10-18)
Reaction to cloning from all aspects
Some repeat Wilmut’s experiment with
other animals.
Others include scientists,animal-rights
activists,politicians up in arms.
Maintain that cloning animals has
tremendous potential for helping people.
There is no reason his techniques couldn’t
be used to clone people.
He draws the line at cloning humans.
Humans are more than the sum of their
genes.
Not sure about the health of a cloning man.
Object to the use of animals as research
tools.
What do you think? Should scientists
be allowed to clone animals? How about
humans? (Para,18)
Language Points
1,instead of doing sth.
a,Wilmut didn’t use early-stage embryo
cells.
b,Wilmut used cells from the udder of an
adult sheep.
Instead of using early-stage embryo
cells,Wilmut used cells from the udder of
an adult sheep.
Exercises:
(1),a,I will not go out,
b,I think I’d like to stay home this
evening.
Instead of going out,I think I’d like
to stay home this evening.
(2),a,They didn’t review their lessons.
b,They watched the World Cup all
night.
Instead of reviewing their lessons,
they watched the World Cup all night.
2,attempt---(vt.) make a start at doing sth.; try
e.g,1) The prisoners attempted to escape
but failed,
2) Don’t attempt to get up.
--- (c,n.) an effort to do sth.,an
attempt to do sth.; an attempt at doing sth.
e.g,They made no attempt to escape/at
escaping,
3,on one’s way to doing sth,--- in the
course of becoming or doing sth.
e.g,The young lady is on her way to
becoming a world-famous fashion
designer.
4,up in arms about / over sth,--- be angry
and protest strongly about sth
e.g,The students were up in arms over
the new rule,
5,draw the line at sth./doing sth,--- refuse
to do or tolerate sth.
e.g,1) I don’t mind helping you,but I draw
the line at helping you cheat in exams.
2) The mother drew the line at
permitting the children to play in their
father’s study,(not allow)
Have A Nice Day!
Cloning,Good Science or
Baaaad Idea
Background Information
Text Analysis
Language Points
I,Background Information
II,Text Analysis
III,Language Points
Cloning,Good Science or
Baaaad Idea
Clones are a result of asexual or
vegetative propagation,
克隆意为无性繁殖,
Clones are a result of asexual or
vegetative propagation.
克隆 意为无性繁殖,
Dolly
Cloned animals
Text Analysis
A Science Report
Formula,
--- first,introduction of a new thing;
--- then,opinions on the new thing from
all aspects,sometimes including its
advantages and disadvantages;
--- at last,the author’s comment on it,
Text Analysis
Part 1 ( Para.1-3) Cloning and its
relevant information
Part 2 (Para.4-9) The development of
cloning
Part 3 (Para.10-18) Reaction to cloning
from all aspects
Para,1 What is cloning?
Para,2 Who invented it?
Para,3 Should scientists be allowed to
clone animals and humans? Is cloning
an ethical and dangerous --- or is it a
valuable research tool?
Part 1 ( Para.1-3)
Cloning and its relevant information
Part 2 (Para,4-9)
The development of cloning
development
Danish scientist Wilmut
His efforts
All attempts at cloning were largely
unsuccessful until 1984.
That’s when a scientist in Denmark
separate cells from a sheep’s embryo.
Unlike a skin cell,an embryo is on its way
to becoming a complete living thing,
The Danish scientist combined an embryo
cell with an egg cell from another sheep.
implanted the fused cell into a grown lamb.
Use cells from the udder of an adult sheep.
Found a way to reprogram an udder cell
and make it grow into a new cloned lamb.
An amazing fact,Dolly has no biological
father.
Dolly
Study reproductive science for more than
two decades.
Of 277 udder cells he fused with egg cells,
only 30 began to develop into embryos.
Implant 29 of those into female sheep,
Only one adult gave birth to a lamb.
Wilmut
ethicist animal-rightactivities
author
general
reactions
Part 3 (Para.10-18)
Reaction to cloning from all aspects
Some repeat Wilmut’s experiment with
other animals.
Others include scientists,animal-rights
activists,politicians up in arms.
Maintain that cloning animals has
tremendous potential for helping people.
There is no reason his techniques couldn’t
be used to clone people.
He draws the line at cloning humans.
Humans are more than the sum of their
genes.
Not sure about the health of a cloning man.
Object to the use of animals as research
tools.
What do you think? Should scientists
be allowed to clone animals? How about
humans? (Para,18)
Language Points
1,instead of doing sth.
a,Wilmut didn’t use early-stage embryo
cells.
b,Wilmut used cells from the udder of an
adult sheep.
Instead of using early-stage embryo
cells,Wilmut used cells from the udder of
an adult sheep.
Exercises:
(1),a,I will not go out,
b,I think I’d like to stay home this
evening.
Instead of going out,I think I’d like
to stay home this evening.
(2),a,They didn’t review their lessons.
b,They watched the World Cup all
night.
Instead of reviewing their lessons,
they watched the World Cup all night.
2,attempt---(vt.) make a start at doing sth.; try
e.g,1) The prisoners attempted to escape
but failed,
2) Don’t attempt to get up.
--- (c,n.) an effort to do sth.,an
attempt to do sth.; an attempt at doing sth.
e.g,They made no attempt to escape/at
escaping,
3,on one’s way to doing sth,--- in the
course of becoming or doing sth.
e.g,The young lady is on her way to
becoming a world-famous fashion
designer.
4,up in arms about / over sth,--- be angry
and protest strongly about sth
e.g,The students were up in arms over
the new rule,
5,draw the line at sth./doing sth,--- refuse
to do or tolerate sth.
e.g,1) I don’t mind helping you,but I draw
the line at helping you cheat in exams.
2) The mother drew the line at
permitting the children to play in their
father’s study,(not allow)
Have A Nice Day!
