中小学教育资源及组卷应用平台
七年级英语(下)第7单元第4课时
Unit
7
It’s
raining!
Section
B
(2a-Self
Check)
一、教学目标：
1.
语言知识目标：
1)
复习与运用所学的有关天气的相关知识来描述天气。
2)
能正确地描述他人正在进行的活动。
3）能根据所提供的相关材料描写某地的天气情况及某人正在进行的活动。
2.
情感态度价值观目标：
教育学生善于观察天气，善于调整自己的情绪；了解世界各地的天气情况，增加世界观念。知道大自然的力量是神奇而伟大的，我们应当好好学习，立志学好科学知识，为长大后探索神奇的大自然，打好基础。
二、教学重难点
1.
教学重点：
1)
综合运用所学的知识，完成短文，描述某地的天气及某些人物正在进行的活动。
2)
能运用所学的知识，来描述某地的天气及某人正在进行的活动。
2.
教学难点：
能运用所学的知识，来描述某地的天气及某人正在进行的活动。
三、教学过程
1.
Warming-
up
and
revision
1.
Have
a
dictation
of
the
new
words
and
expression
learned
in
Section
B.
2.
Let
some
Ss
read
the
postcards
in
2b.
3.
Watch
a
video
program
about
the
weather
forecast.
2.
Presentation
1.Show
some
pictures
on
the
big
screen
and
present
some
new
words
and
expressions
in
this
period.
(skate,
snowy,
winter,
Russian,
snowman)
2.
Ss
read
the
new
words
and
try
to
remember
them.
3.
Free
talk
Finish
some
exercises.
4.
Talking
1.
Look
at
the
pictures
in
2a.
Talk
about
the
pictures
with
a
partner.
How's
the
weather?
What
are
the
people
doing?
Make
a
model
to
the
Ss.
S1:
How's
the
weather
in
picture
a?
S2:
It's
sunny
and
warm.
S1:
What's
the
girl
doing?
S2:
She's
sitting
near
the
pool
and
drinking
some
juice.
2.
Ss
work
in
pairs
and
talk
about
the
pictures.
3.
Let
some
pairs
ask
and
answer
the
pictures
aloud.
5.
Presentation
1.
Show
some
pictures
on
the
big
screen
to
present
some
of
the
new
words
in
the
postcards
in
2b.
2.
Teach
Ss
the
new
words.
Then
let
Ss
read
the
new
words
after
the
teacher.
6.
Reading
1.
Fast
Reading
Read
the
postcards
in
2b
and
math
each
postcard
with
the
correct
picture
in
2a.
Ss
read
the
postcards
quickly
and
match
the
postcard
the
correct
picture.
Then
check
the
answers.
2.
Careful
reading:
Read
the
first
postcard
again
and
find
the
answers
to
these
questions.
①
Where
is
Su
Lin
now?
②
What
is
Su
Lin
studying
here?
③
Is
she
visiting
some
of
his
old
friends
there?
④
What’s
she
doing
right
now?
⑤
How’s
the
weather
there?
Read
the
second
postcard
again
and
find
the
answers
to
these
questions.
①
Where
is
Dave
now?
②
What
are
Dave
and
his
family
doing
there?
③
Are
they
having
a
good
time?
④
How’s
the
weather
there?
⑤
How’s
the
weather
in
Jane’s
country?
Ss
read
the
postcards
and
try
to
find
the
answers
to
the
questions.
Then
check
the
answers
with
the
class.
7.
After
Reading
1.
Read
the
postcards
again
and
fill
in
the
chart
with
the
information
from
the
postcards
in
2b.
2.
阅读指导：
1)
先看表格，可知本题要求我们读明信片，完成Sun
Lin和Wen
Wei现在在哪里在、那里的天气如何以及他们正在做的事情这三项内容。
2)
带着三个问题，分别去在Sun
Lin和Wen
Wei所写的明信片中去寻找相关内容。
3)
找到相关依据后，再认真分析这三个问题的正确答案，然后填写在空格处。
3.
Check
the
answers
with
Ss.
8.
Writing
1.
T:
Here's
another
postcard
from
Kate
to
Xiao
Lu.
Look
at
the
pictures
on
the
postcard.
How's
the
weather
there?
And
what
is
the
girl
doing?
Let
some
Ss
answer
the
two
questions.
2.
Let
some
Ss
read
the
words
in
the
box.
Explain
the
meaning
of
the
words
that
they
don't
know.
3.
思路指导：
首先,
应读方框里的单词,
掌握每个单
词的意思。
其次,
通读一遍短文,
理解短文大意。
然后,
认真读每个句子,
分析每个空格处前后上下文的意思，确定空格处所缺单词的意思。如：第一、二两空格前有weather一词，可知空格处只应填snowy和windy一词。第三空格后面有“俄罗斯面包”一词可推知，空格处应为buying一词。第四空格由空格后面的on
a
river可知应是“skate”一词。最后一空格是take
a
photo
of
…，应用现在进行时态，故填taking。
4.
学生们在老师的指导方法下，读信的内容，然后补全短文内容。
5.
Check
the
answers.
9.
Writing
1.
Imagine
you
are
on
vacation.
Write
notes
about
your
vacation.
2.
Let
some
Ss
read
the
questions
aloud.
3.
Make
sure
Ss
know
the
meaning
of
the
questions.
4.
Ss
think
and
write
down
some
notes
about
their
vacations.
5.
Let
Ss
read
out
their
own
vacation
notes.
10.
Writing
1.
Write
a
postcard
to
a
friend.
Tell
your
friend
about
your
vacation
and
what
you
are
doing.
2.
写作指导：
回想一下给你印象最深的一次度假活动。
可以将在3b中问题的答语,
做为写作的内容。
假想你现在正在度假。将回答问题的几个句子连起来，形成一个语句连贯的短文。
注意，应用现在进行时态来表述现在正在发生的事情。
3.
学生们根据老师的指导方法，大胆地进行写作，发挥自己的想像力，写出好的内容。
4.
Let
Ss
read
their
postcard
to
the
class.
11.
Self
Check
1
1.
Tell
Ss
we've
learned
some
words
about
feelings,
weather
and
activities.
Now
discuss
with
your
partners.
Add
more
words
in
the
box.
2.
Ss
work
in
pairs
and
add
more
words
in
the
box.
3.
Let
some
Ss
read
their
words.
Let
other
Ss
add
more
words.
12.
Self
Check
2
1.Read
the
sentences
below
on
the
left
and
find
the
responses
on
the
right.
2.思路指导：
首先，应通读所有选项，掌握对话的大意。可知本对话是一个打电话的情景，由打电话的常识可知左栏第一句话为首句，句意为“你好，我是詹妮”可知答语应是右栏中的第二句话。
由左栏第二句末的“我可以给她带个话吗？”一句可以确定其答语为右栏中的第三句话，“好的。你可以让她打电话876-54321吗？”。
当A方回答“没问题”后，B方应当表示感谢。
3.
Ss
read
the
sentences
below
and
find
the
responses.
4.
Check
the
answers
with
the
class.
Then
let
the
Ss
practice
the
conversation
with
a
partner.
13.
Self
Check
3
1.
Put
these
sentences
in
order
to
make
a
conversation.
Then
write
your
own
conversation.
2.
思路指导：
本题要求将一对话排列正确的说话顺序。
首先，通读所有的句子，理解对话的大意。
其次，在通读对话的基础上确定对话的首句应是打招呼的“Hi,
Jill”一句。
接下来，就可以确定“Not
too
bad.”是第二句。
比较询问天气的问句和询问在下雨天里在做什么事情，可知应先问天气情况。
最后，通读一遍对话，看是否通顺。
3.
学生们按指导方法，将对话的顺序排好。然后和伙伴练习这个对话。
4.
与伙伴共同编造一个与之相仿的对话。并向本小组的其他同学表演一下。
Homework
找一张你度假时照的照片，写一篇小短文向你的同学们介绍一下当时你度假的情况。包括以下内容如下：
在何地度假
天气情况
你们正在进行的活动
你对假期的感受
板书设计：
Section
B
2a-Self
Check
2b:
①
Where
is
Su
Lin's
uncle
work?
②
What
is
Su
Lin
doing
in
Canada?
③
Are
Wen
Wei
and
family
having
a
great
time?
④
Why
can't
Wen
Wei
call
Jane?
3a:
snowy,
windy;
buying,
playing,
skating,
talking
Self
Check
2:
A：Hello?
Jenny
speaking.
B:
Hi,
Jenny.
It's
Steve
here.
May
I
speak
to
Lucy,
please?
A：Sorry,
she's
not
at
home.
Can
I
take
a
message?
B:
Yes.
Could
you
ask
her
to
call
me
at
8765-4321?
A:
Sure.
No
problem.
B:
Thank
you.
Bye.
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人教新目标版
七年级下
Unit
7
It's
raining!
Section
B
2a-Self
Check
听说课
Lead
in
How's
the
weather
?
How’s
the
weather
in
spring?
It’s
raining,
humid,
warm.
How’s
the
weather
in
summer?
It’s
sunny,
hot,
hot,
hot.
What’s
the
weather
like
in
autumn?
It’s
cool,
cool,
cool.
What’s
the
weather
like
in
winter?
It’s
snowy,
cold,
cold,
cold.
Let's
chant
hot
dry
warm
cold
terrible
cool
Talk
about
the
pictures
below
with
a
partner.
How’s
the
weather?
What
are
the
people
doing?
2a
How’s
the
weather?
It’s
sunny
and
hot.
What
is
she
doing?
She’s
drinking
orange
juice.
How’s
the
weather?
It’s
cloudy
and
cool.
What
are
they
doing?
They
are
climbing
the
mountains.
How’s
the
weather?
It’s
raining.
What
is
she
doing?
She’s
writing
a
letter.
Match
each
postcard
below
with
the
correct
picture
in
2a.
2b
Dear
Jane,
How’s
it
going?
I’m
having
a
great
time
visiting
my
aunt
in
Canada.
She’s
working
here
and
I’m
going
to
summer
school.
I’m
studying
English
and
I’m
learning
a
lot.
I’m
also
visiting
some
of
my
old
friends.
I’m
so
happy
to
see
them
again.
It’s
afternoon
right
now,
and
I’m
sitting
by
the
pool
and
drinking
orange
juice.
It’s
warm
and
sunny,
and
it’s
very
relaxing
here.
See
you
soon.
Su
Lin
To
Jane
_________
_________
_________
Dear
Jane,
How
is
your
summer
vacation
going?
Are
you
studying
hard,
or
are
you
having
a
great
time
in
Europe!
My
family
and
I
are
on
a
vacation
in
the
mountains.
I
want
to
call
you
but
my
phone
isn’t
working,
so
I’m
writing
to
you.
It’s
hot
in
your
country
now,
isn’t
it?
The
weather
here
is
cool
and
cloudy,
just
right
for
walking.
See
you
next
month.
Dave
To
Jane
_________
_________
_________
Read
the
first
postcard
in
2b
again
and
answer
the
questions.
Where
is
Su
Lin
now?
______________________
2.
What
is
Su
Lin
studying
there?
_______________________
She’s
in
Canada.
She’s
studying
English.
Careful
reading
3.
Is
she
visiting
some
of
his
old
friends
there?
_________________________________
4.
What’s
she
doing
right
now?
_________________________________
_________________________________
5.
How’s
the
weather
there?
_________________________
Yes,
she
is.
She’s
sitting
by
the
pool
and
drinking
orange
juice.
It’s
warm
and
sunny.
1.
I’m
having
a
great
time
visiting
my
aunt
in
Canada.
have
a
great
time
doing
sth.
意为“做某事过得愉快”。例如：
We
have
a
great
time
singing
and
dancing.
我们唱歌、跳舞过得很高兴。
Language
points
have
a
difficult
/
hard
time
(in)
doing
sth.
很吃力
/
很费力地做某事
He
is
ill
in
bed
for
nearly
a
month,
so
he
has
a
hard
time
______
the
exam.
A.
pass
B.
to
pass
C.
passed
D.
passing
解析：have
a
hard
time
doing
sth.“很难做某事”，
后面要用动词的-ing形式，所以选D。句意是：
“因为他在床上病了将近一个月，所以很难通过
考试”
。
D
2.
She
is
working
here
and
I’m
going
to
summer
school.
她在这里上班，而我在上暑期学习班。
1)
在本篇课文的两张明信片中，现在进行时大多用来表示“当前一段时间手头上正在从事的事情，而非说话的当时正在做的动作。这是现在进行时态的又一主要表意功能。这样使用时，比用一般现在时所写相同概念的句子读起来更加形象、逼真，好像事情就发生在眼前。例如：
I’m
reading
an
interesting
book
these
days.
这几天我在看一本有趣的书。
2)
summer
school
指暑假专门开办的学校或开设的课程，类似于我国的“暑假班”或“暑期补习学校”等。类似的还有night
school
(夜校)
等等。
3.
I’m
sitting
by
the
pool
and
drinking
orange
juice.
1)
sit
动词，意为“坐”，是不及物动词。如
表达“坐在某地”就用介词短语来表达地点。如：
Please
sit
on
the
chair
and
have
some
tea.
请坐在椅子上喝杯茶。
2)
by
意为“在……旁边”，它所表示的位置比
near
更近一些。例如：
All
the
children
are
sitting
by
the
table.
所有的孩子们都坐在桌子旁边。
Do
you
live
near
your
school?
你家住在学校附近吗？
4.
My
family
and
I
are
on
a
vacation
in
the
mountains.
我和我的家人在山上度假。
on
a
vacation
=on
vacation
在度假,
美国英语习惯用语。
summer
vacation
暑假
winter
vacation
寒假
holiday
“假期”,
英国英语常用的词汇,
一般
是几天的休息,
如各种节日或休假日。如:
On
holidays
summer
holidays/vocation
暑假
5.
I
want
to
call
you
but
my
phone
isn’t
working,
so
I’m
writing
to
you.
我想给你打电话，但是我的电话坏了，所以我写明信片给你。
（1）这里的
work
用来表示仪器、设备的“运行、工作”若是用于否定结构如
isn’t
work，则表示某一件物品“不工作了”或“坏掉了”。如:
The
bike
isn’t
working
now.
自行车现在坏了。
（2）write
to
表示“写信给某人”。如：
My
friend
,
Tom,
often
writes
to
me.
我的朋友Tom经常写信给我。
6.
It’s
hot
in
your
country
now,
isn’t
it?
你们的国家现在很热，对吗？
这种的句子，在陈述句后面加一个简短的问句，用来对陈述部分内容进行确认，称为反意疑问句。
例如：
It's
very
hot
today,
isn't
it
?
今天天气很热，是不是？
回答用：Yes,
it
is
.是的，很热。
Fill
in
the
chart
with
information
from
the
postcards
in
2b.
Name
Where
are
they?
How’s
the
weather?
What
are
they
doing?
Su
Lin
Dave
Canada
Europe
warm
and
sunny
cool
and
cloudy
visiting
her
aunt,
studying
English,
visiting
old
friends,
sitting
by
the
pool
walking
in
the
mountains,
writing
to
Jane
2c
Dear
Xiao
Lu,
It’s
winter
in
Harbin.
The
weather
is
_______and______.
People
are
wearing
hats
and
sweaters,
but
they’re
having
fun.
Friends
are
__________Russia
bread
to
take
home.
In
a
park,
some
boys
are_________
in
the
snow.
One
girl
is__________
on
a
river
and
a
man
is
__________a
photo
of
a
snowman.
I
miss
you.
Kate
snow
windy
buying
playing
skating
taking
Fill
in
the
blanks
skating
buying
playing
taking
snowy
windy
3a
A
man
is
taking
a
photo
of
a
snowman.
一个男人正在给雪人照相。
take
photos
“照相”
take
a
photo
of
sb/
sth
给某人某物照相。
如:
Please
take
a
photo
of
my
baby.
请给我的孩子照一张相吧。
Imagine
you
are
on
vacation.
Write
notes
about
your
vacation.
3b
Where
are
you?
What’s
the
weather
like?
What
are
you
doing
right
now?
What
are
your
friends
and
family
doing?
Are
you
having
a
good
time?
I’m
on
a
vacation
in
Beijing.
We’re
on
the
Great
Wall
right
now.
The
weather
is
cloudy
and
cool.
I’m
talking
to
some
students
from
the
US.
My
father
is
taking
some
photos
of
the
mountains.
My
mother
is
taking
a
walk.
My
sister
is
drawing
a
picture.
My
vacation
is
great.
Write
a
postcard
to
a
friend.
Tell
your
friend
about
your
vacation
and
what
you
are
doing.
3c
Dear
…,
_______________________________________________________________________________________________________________
I
miss
you.
…
Sample
We
are
on
a
vacation
in
Beijing.
We’re
on
the
Great
Wall
right
now.
It’s
cloudy
and
cool
today.
It’s
just
right
for
walking.
Look!
My
mother
is
taking
a
walk.
My
father
is
taking
photos
of
the
mountains.
My
sister
is
drawing
a
picture.
I’m
talking
with
some
students
from
the
US
in
English.
My
vacation
is
great.
1
Add
more
word
in
each
box.
feeling
great
weather
cool
activities
playing
ping-pong
fine,
not
bad,
terrible,
pretty
good,
happy
rainy,
windy,
cloudy,
snowy,
hot,
warm,
cold
visiting
friends,
studying
English,
sitting
by
the
pool,
relaxing,
writing
a
letter,
walking
in
the
mountains
Self
Check
2
Match
the
sentences
on
the
left
with
the
responses
on
the
right.
A:
Hello,
Jenny
speaking.
B:
Thank
you,
bye.
A:
Sorry,
she’s
not
at
home.
B:
Hi,
Jenny.
It’s
Steve
Can
I
take
a
message?
here.
May
I
speak
to
Lucy,
please?
A:
Sure,
no
problem.
B:
Yes.
Could
you
ask
her
to
call
me
at
8765-4321?
3
Put
these
sentences
in
order
to
make
a
conversation.
Then
write
your
own
conversation.
____
It’s
raining
and
very
cool.
____
What
are
you
doing
in
the
rainy
weather?
____
Not
too
bad.
____
How’s
the
weather
in
NanJing?
____
I’m
reading
a
book
in
my
room.
____
Hi,
Jill!
How’s
it
going?
1
2
3
4
5
6
Exercise
A:
Hello?
Eric
_________.
B:
Hi,
Eric.
It’s
Peter
here.
A:
Oh,
Peter.
______
it
going?
B:
Not
too
____.
We
are
___
vacation
in
Hongkong.
A:
How’s
the
_______
there?
一、补全对话。
speaking
How’s
bad
on
weather
B:
It’s
rainy
and
cool.
A:
What
are
you
______
there?
B:
We
are
shopping
in
the
supermarket.
A:
The
things
are
really
nice
and
the
prices
are
good.
B:
_______
good.
doing
Sounds
homework
书面作业
(Writing
work)
(1)
完成本课时相对应的练习册
口头作业
(Oral
work)
(1)掌握本课时的语法点
Thank
you!
谢谢
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七年级英语(下)第7单元第4课时
Unit
7
It’s
raining!
课后练习
一．单项选择
1.
—Hello!
Is
that
Mr
Wang
speaking?
—Yes.
A.
Who’s
that?
B.
Who
are
you?
C.
I’m
speaking.
D.
I’m
Mr
Wang.
2.
They
often
go
to
the
zoo
vacation.
A.
at
B.
in
C.
to
D.
on
3.
—
is
the
weather
like
Changchun?
—It’s
cold.
A.
What;
about
B.
What;
in
C.
How;
about
D.
How;
in
4.—What
is
he
doing?
—He
is
playing
soccer.
A.
a
B.
the
C.
/
D.
an
5.
What
they
every
evening?
二．阅读理解
April
22
is
Earth
Day.
Everyone
on
earth
should
care
about
and
protect
the
earth!
The
earth
has
warmed
by
about
1（华氏度）
over
the
past
100
years,
but
why
and
how?
Well,
scientists
are
not
quite
sure.
Maybe
the
earth
gets
warmer
and
warmer
on
its
own.
But
many
scientists
say
that
people
are
doing
many
things
which
make
the
earth
warmer.
First,
greenhouse
effect
（温室效应）
is
a
very
important
reason
for
the
change
of
the
earth.
People
give
out
too
much
energy
into
the
air
every
year.
It
makes
the
earth
warmer.
Climate
（气候）
change
is
another
important
reason.
Sometimes
it
becomes
too
hot
and
sometimes
too
cold.
Sometimes
there
is
too
much
rain
and
sometimes
too
little.
The
change
of
the
climate
makes
the
earth
warmer.
In
turn,
the
warmth
of
the
earth
changes
the
climate,
too.
When
the
earth
becomes
warmer,
there
may
be
more
rain
and
a
rise
in
sea
level.
It
will
affect
the
growth
of
plants,
animals
and
people.
On
a
Pacific
island,100
people
have
to
move
to
higher
ground
because
the
sea
is
rising.
These
people
can
no
longer
live
on
the
coast.
Before
that,
two
islands
without
people
went
underwater
in
1999.Scientists
say
that
the
seas
can
rise
by
nearly
one
metre
by
2100.
People
can
affect
the
earth’s
air,
land
and
water.
As
for
us,
we
can
do
many
things
to
protect
the
earth.
For
example,
we
can
use
fridges
less.
We
can
tell
more
people
about
protecting
the
earth.
6.
Earth
Day
is
probably
set
for
people
to
.
A.
learn
more
about
the
earth
B.
make
full
use
of
the
earth
C.
take
better
care
of
the
earth
D.
study
the
warmth
of
the
earth
7.We
can
infer（推断）
from
the
passage
that
the
reasons
for
the
warmer
earth
are
now.
A.
not
very
clear
B.
completely
secret
C.
well
known
D.
not
given
yet
8.
Greenhouse
effect
comes
from
.
A.sea
rising
B.
climate
change
C.
nature’s
unbalance
D.
people’s
activity
9.
According
to
the
passage,
may
affect
each
other.
A.
animals
and
islands
B.
climate
and
the
warmth
of
the
earth
C.
fridges
and
animals
D.
sea
level
and
the
growth
of
plants
10.
The
passage
mainly
tells
us
that
.
A.
there
is
more
rain
now
B.
we
should
protect
the
earth
C.
we
must
stop
pollution
D.
sea
level
is
getting
higher
根据句意及首字母提示完成单词
11.
It’s
s
outside
now.
The
land
is
all
white.
12.
There
are
many
people
on
the
beach.
They
are
taking
p
with
their
cameras.
13.
In
summer,
the
weather
is
usually
very
h
in
Shenzhen.
14.
The
sun
is
shining
brightly.
It’s
very
s
.
15.
How’s
the
w
in
Beijing?
16.
It’s
c
（多云的）.
17.
There
are
a
lot
of
c
in
the
world.
18.
—How’s
it
going?
—P
good.
19.
In
w
,
children
like
making
snowmen
and
playing
in
the
snow.
20.
My
family
and
I
are
on
v
in
Hainan.
参考答案
一.
1.A
由前句Hello!
Is
that
Mr.
Wang
speaking?可知此处为打电话用语，英语中打电话说“你是谁？”“你是……吗？”“我是……”，习惯上不用you或I,而用that表示“你”，用this表示“我”，故可排除B、C、D三项，故选A项。
2.D
on
vacation意为“度假”。句意为“他们假期常去动物园”。
3.B
由答语“It’s
cold.”可知问句询问“天气状况”，询问天气状况常用句型How’s
the
weather...?或What’s
the
weather
like...?因为句中有like，故用what，可排除C、D两项，询问某地天气如何，在城市或国家前要用介词in，故选B项。
4.C
play与球类运动名词连用时，球类运动名词前不用定冠词，soccer意为“（英式）足球”，故不用冠词，选C项。
5.B
由句末的时间状语every
evening“每天晚上”可知是表示经常性、习惯性的动作，要用一般现在时，且主语为they，可排除A、C、D三项，故选B项。
二.
6.C
由第一段“April
22
is
Earth
Day.
Everyone
on
earth
should
care
about
and
protect
the
earth!”可知选C。
7.A
由第二段中“Well,
scientists
are
not
quite
sure.”可知原因还不是很清楚。故选A。
8.D
由文中第二段的“But
many
scientists
say
that
people
are
doing
many
things
which
make
the
earth
warmer.”可知，人们的活动引起了温室效应。故选D。
9.B
由文中第三段的“The
change
of
the
climate
makes
the
earth
warmer.
In
turn,
the
warmth
of
the
earth
changes
the
climate,
too.”可知选B项。
10.B
本文主要告诉我们要保护地球。故选B。
三.
11.snowing
根据句意知，正在下雪。
12.photos
take
photos意为“照相”。
13.hot
hot意为“热的”。
14.sunny
根据上句句意知，天气是晴朗的。
15.weather
16.cloudy
cloudy为形容词，意为“多云的”。
17.countries
country意为“国家”。
18.Pretty
pretty作副词，修饰其后的形容词good。
19.winter
winter
冬天。
20.vacation
on
vacation在度假。
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