内容正文:
Unit 3 Look at the shadow知
识
归
纳
语音语调
/iː/:ee(bee, see)、ea(tea, eat)
/ɪə/:eer(deer, cheer)、ear(tear, hear)
注意:描述影子变化的陈述句用降调,如 “The shadow grows short.(降调)”;一般现在时特殊疑问句用降调,如 “Where is the shadow?(降调)”
必记单词
四会
shadow(影子)、sun(太阳)、rise(升起)、go down(落下)、long(长的)、short(短的)、small(小的)、big(大的)、strong(强壮的)、hill(小山)、lawn(草坪)、path(小路)、bench(长椅)、torch(手电筒)
三会
follow(跟随)、stay(停留)、walk(行走)、grow(生长;变得)、afraid(害怕的)、bite(咬)、friend(朋友)、play(玩耍)
常考短语
look at the shadow(看影子)、rise behind the hill(在山后升起)、go down in the evening(傍晚落下)、grow short(变短)、grow long again(再次变长)、stay behind me(待在我身后)、walk in front of me(走在我前面)、run very fast(跑得很快)
必会句型
1. 描述太阳位置与影子变化:- In the morning, the sun rises behind the hill. The tree's shadow is long.- At noon, the sun is high in the sky. The shadow grows short.- In the evening, the sun goes down. The shadow grows long again.
2. 描述影子位置:- Sometimes my shadow stays behind me. / Sometimes it walks in front of me.
3. 描述影子大小:- Sometimes my shadow grows short and small. / Sometimes it grows big and strong.
4. 情景对话:- What's that? Is it a big black dog? - It's my shadow!
核心语法
1. 一般现在时(描述自然规律与习惯性动作):表示太阳的日常运动、影子的规律变化,以及人物 / 动物的习惯性行为,主语为第三人称单数时,动词要变为三单形式(如 rise→rises, grow→grows, go→goes, stay→stays)。
2. 介词表位置:用介词描述影子 / 太阳的位置,如 behind the hill(在山后)、in the sky(在天空中)、on the lawn(在草坪上)、in front of me(在我前面)、behind me(在我身后)。
考
点
速
记
考点 01
考点 01 一般现在时(描述太阳与影子的变化规律)
1.定义:用于描述自然规律(太阳东升西落、影子长短变化)和习惯性动作(影子跟随人、动物日常行为),是本单元核心时态。
2.动词三单变化规则:
一般动词:词尾 + s(如 rise→rises, grow→grows, walk→walks)
以 s/x/ch/sh/o 结尾的动词:词尾 + es(如 go→goes, pass→passes)
以辅音字母 + y 结尾的动词:变 y 为 i + es(如 cry→cries, try→tries)
3.常用句型:
描述太阳运动:The sun rises/goes down...
描述影子变化:The shadow grows long/short...
描述习惯性动作:My shadow often goes with me. / Henry runs down the road.
提分练
一、用所给动词的适当形式填空
1.The sun ______ (rise) behind the hill in the morning.
2.At noon, the sun ______ (be) high in the sky.
3.The tree's shadow ______ (grow) short at noon.
4.In the evening, the sun ______ (go) down.
5.My shadow often ______ (go) with me when I go to school.
6.Henry the dog ______ (run) down the road every sunny day.
2、 单项选择
( ) 1. The sun ______ behind the mountain every morning.
A. rise B. rises C. rose
( ) 2. The tree's shadow ______ long in the evening.
A. grow B. grows C. grew
( ) 3. My shadow sometimes ______ behind me.
A. stay B. stays C. stayed
( ) 4. Henry ______ afraid when he sees his shadow.
A. is B. are C. was
( ) 5. The sun ______ down in the afternoon.
A. go B. goes C. went
考点 02
介词表位置(描述影子 / 太阳的位置)
1.定义:用介词精准描述太阳、影子的位置,是本单元重点句型结构。
2.核心介词与搭配:
in:in the morning/evening(在早上 / 傍晚)、in the sky(在天空中)、in front of me(在我前面)
on:on the lawn(在草坪上)、on the bench(在长椅上)、on the path(在小路上)、on the wall/floor(在墙上 / 地板上)
behind:behind the hill(在山后)、behind me(在我身后)
at:at noon(在中午)、at seven o'clock(在七点)
3.句型结构:
The sun is... + 介词短语.
The shadow is... + 介词短语.
Sometimes my shadow stays/walks... + 介词短语.
提分练
一、用适当的介词填空
1.Look at the sun. It rises ______ the hill in the morning.
2.At noon, the sun is high ______ the sky.
3.The tree's shadow is ______ the lawn in the morning.
4.At noon, the shadow is ______ the bench.
5.In the evening, the shadow is ______ the path.
6.Sometimes my shadow stays ______ me. Sometimes it walks ______ front of me.
7.The shadow can be ______ the wall or ______ the floor.
二、单项选择
( ) 1. The sun rises ______ the hill in the morning.
A. behind B. in C. on
( ) 2. At noon, the tree's shadow is ______ the bench.
A. in B. on C. behind
( ) 3. My shadow sometimes walks ______ front of me.
A. in B. on C. at
( ) 4. In the evening, the sun goes ______.
A. up B. down C. in
( ) 5. The shadow is ______ the path in the evening.
A. on B. in C. behind
参考答案
(1) 考点 01 一般现在时
一、动词形式填空
1.rises
2.is
3.grows
4.goes
5.goes
6.runs
二、单项选择
1.B
解析:主语 the sun 是第三人称单数,动词 rise 变三单 rises,故选 B。
2. B
解析:主语 shadow 是单数,动词 grow 变三单 grows,故选 B。
3. B
解析:主语 shadow 是单数,动词 stay 变三单 stays,故选 B。
4. A
解析:主语 Henry 是单数,be 动词用 is,故选 A。
5. B
解析:主语 the sun 是单数,动词 go 变三单 goes,故选 B。
(2)形容词描述触感
一、介词填空
1.behind
2.in
3.on
4.on
5.on
6.behind; in
7.on; on
二、单项选择
1.A
解析:太阳在山后升起,用 behind,故选 A。
2.B
解析:影子在长椅上,用 on,故选 B。
3.A
解析:固定搭配 in front of(在…… 前面),故选 A。
4.B
解析:固定搭配 go down(落下),故选 B。
5.A
解析:影子在小路上,用 on,故选 A。
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