内容正文:
Unit5对比分析法描述濒危动物
01 写作方法指引-原文指路
Teacher: What do you know about animals in danger, Lucy?
Lucy: I know about pandas. In the past, there were many pandas, but now there are only about one thousand eight hundred pandas in the wild.(熊猫过去与现在数量的对比)
Teacher: What about other animals in danger?
Lucy: I also know about South China tigers and blue whales. In the past, there were many South China tigers, but now there is likely none in the wild. And in the past, there were many blue whales, but now there are only about ten thousand in the wild.(华南虎、蓝鲸过去与现在数量的对比)
02 写作方法指引-对比分析法
动物类别
过去数量情况
现在数量情况
熊猫
数量众多(many pandas)
野外仅约 1800 只(only about one thousand eight hundred pandas in the wild)
华南虎
数量众多(many South China tigers)
野外可能已无(likely none in the wild)
蓝鲸
数量众多(many blue whales)
野外仅约 1 万只(only about ten thousand in the wild)
03写作方法指引-示例写作方法指引-示例
Pandas are one of the animals in danger.(濒危动物 1)In the past, there were many pandas. But now, there are only about one thousand eight hundred pandas in the wild.(熊猫过去与现在数量对比)
South China tigers are also animals in danger.(濒危动物 2)Once, there were many South China tigers living in the wild. However, now there is likely none of them left in the wild.(华南虎过去与现在数量对比)
Blue whales are in danger too.(濒危动物 3)In the past, the number of blue whales was large. But at present, there are only about ten thousand blue whales in the wild.(蓝鲸过去与现在数量对比)
01 基础知识精讲-句型
描述动物过去与现在数量对比
参考单词:
panda(熊猫);South China tiger(华南虎);blue whale(蓝鲸);danger(危险);wild(野外);thousand(千)
参考词组:
in danger(处于危险中);in the past(在过去);at present(现在);the number of(…… 的数量)
参考句型:
1.In the past, there were many... , but now there are only about... in the wild.(在过去,有很多……,但现在野外仅约……)
2.... are one of the animals in danger.(…… 是濒危动物之一)
3.Once, there were many... living in the wild. However, now there is likely none of them left in the wild.(曾经,有很多…… 生活在野外。然而,现在野外可能已没有它们的踪迹了)
02 基础知识精讲-语法
there be 句型的过去时与现在时对比运用:
1.含义:there be 句型表示 “某地有某物 / 某人”,其过去时为 there was/were,用于描述过去存在的事物;现在时为 there is/are,用于描述现在存在的事物。通过对比 there be 句型的过去时和现在时,可清晰展现事物数量等方面的变化,此处用于体现濒危动物数量的减少。
2.用法示例:
肯定句(过去时,复数名词):In the past, there were many pandas.(在过去,有很多熊猫)
肯定句(现在时,复数名词):But now there are only about one thousand eight hundred pandas in the wild.(但现在野外仅约 1800 只熊猫)
肯定句(过去时,复数名词):In the past, there were many South China tigers.(在过去,有很多华南虎)
肯定句(现在时,单数名词):But now there is likely none in the wild.(但现在野外可能已无(华南虎)了)
提分练
一、选择题
( ) 1. In the past, there ______ many blue whales in the ocean.
A. is B. are C. was D. were
( ) 2. Now, there ______ only about one thousand eight hundred pandas in the wild.
A. is B. are C. was D. were
( ) 3. There ______ many South China tigers in the wild, but now there ______ none.
A. is B. are C. was D. were
二、用所给单词的适当形式填空
1. In the past, there ______ (be) many pandas in the wild.
2. Now, there ______ (not be) many South China tigers in the wild.
3. There ______ (be) about ten thousand blue whales in the wild now, but in the past, there ______ (be) more.
三、按要求改写句子
1. In the past, there were many pandas in the wild.(改为否定句)
___________________________________________________________
0. Now, there are only about one thousand eight hundred pandas in the wild.(改为一般疑问句)
___________________________________________________________
3.In the past, there were many South China tigers.(对划线部分提问)
___________________________________________________________
参考解析
一、选择题
1.答案:D 解析:句中 “In the past”(在过去)是 there be 句型过去时的标志,且 “many blue whales”(很多蓝鲸)是复数名词,所以 be 动词用 were。A 选项是一般现在时单数,B 选项是一般现在时复数,C 选项是过去时单数,故选 D。
2.答案:B 解析:“Now”(现在)表明句子是 there be 句型的现在时,“only about one thousand eight hundred pandas”(仅约 1800 只熊猫)是复数名词,be 动词用 are。A 选项是现在时单数,C 选项是过去时单数,D 选项是过去时复数,故选 B。
3.答案:A 解析:前半句 “In the past”(在过去)提示用 there be 句型过去时,“many South China tigers”(很多华南虎)是复数,be 动词用 were;后半句 “now”(现在)提示用现在时,“none”(没有一个)视为单数,be 动词用 is,故选 A。
二、用所给单词的适当形式填空
1.答案:were 解析:“In the past”(在过去)表明用 there be 句型过去时,“many pandas”(很多熊猫)是复数,所以填 were。
2.答案:aren't 解析:“Now”(现在)提示用 there be 句型现在时,“many South China tigers”(很多华南虎)是复数,否定形式为 aren't,所以填 aren't。
3.答案:are; were 解析:前半句 “now”(现在)提示用现在时,“about ten thousand blue whales”(约 1 万只蓝鲸)是复数,填 are;后半句 “in the past”(在过去)提示用过去时,“more”(更多,指代更多蓝鲸)是复数概念,填 were。
三、按要求改写句子
1.答案:In the past, there weren't many pandas in the wild.
解析:原句是 there be 句型过去时的肯定句,改为否定句时,在 be 动词 were 后加 not,缩写为 weren't。
2.答案:Now, are there only about one thousand eight hundred pandas in the wild?
解析:原句是 there be 句型现在时的肯定句,改为一般疑问句时,将 be 动词 are 提到句首,首字母大写,其余部分不变。
3.答案:What were there in the past?
解析:划线部分 “many South China tigers”(很多华南虎)表示事物,对其提问用特殊疑问词 what,然后将原句的 be 动词 were 提到 there 之前,构成疑问句。
模拟写作提升1
请根据课文中对濒危动物的介绍,以 “Animals in danger” 为题写一篇作文,介绍你知道的濒危动物过去与现在的数量情况。
要求:
1.书写规范,正确使用标点符号。
2.语言表达流畅。
3.不少于 50 词。
参考词组:
in danger(处于危险中);in the past(在过去);at present(现在);in the wild(在野外);the number of(…… 的数量)
参考句型:
1.... are animals in danger.
2.In the past, there were many... , but now there are only about... in the wild.
3.Once, there were many... living in the wild. However, now there is likely none of them left.
范文 1:
Animals in Danger
There are many animals in danger around the world, and I know some of them well.
Pandas are one of the most famous animals in danger. In the past, there were many pandas walking in the forests. But at present, there are only about one thousand eight hundred pandas in the wild.(熊猫过去与现在数量情况)
South China tigers are also in great danger. Once, there were many South China tigers running freely in the wild. However, now there is likely none of them left in the wild.(华南虎过去与现在数量情况)
Blue whales, the largest animals on earth, are in danger too. In the past, the number of blue whales was very large. But now, there are only about ten thousand blue whales in the wild.(蓝鲸过去与现在数量情况)
We should try our best to protect these animals in danger. (呼吁保护动物)
模拟写作提升2
假设你是环保小卫士 Lily,学校让你向同学们介绍一种濒危动物的过去与现在情况,以 “A Kind of Endangered Animal — Pandas” 为题写一篇作文。
要求:
1.书写规范,正确使用标点符号。
2.语言表达流畅。
3.不少于 50 词。
参考词组:
cute(可爱的);bamboo(竹子);protect(保护);living area(生存区域);reduce(减少)
参考句型:
1.Pandas are cute animals, but they are in danger now.
2.In the past, there were many pandas, and they had enough bamboo to eat and large living areas.
3.But now, there are only about... pandas in the wild because their living areas are reducing.
范文 2:
A Kind of Endangered Animal — Pandas
In the past, there were many pandas in China. They lived in the forests and had plenty of bamboo to eat. They also had large living areas to move around freely.(熊猫过去的生存状况与数量)
But now, pandas are in great danger. There are only about one thousand eight hundred pandas in the wild. The main reason is that their living areas are reducing, and the bamboo they eat is also becoming less sometimes.(熊猫现在的生存状况与数量)
We should work hard to protect pandas and provide them with a better living environment. (呼吁保护动物)
2024年上海六年级英语单元考题
俗话说 “保护动物就是保护人类自己”,濒危动物的生存现状需要我们共同关注。请你根据下面的提示,以“Animals in Danger”为题,写一篇作文,
要点如下:
1.描述2种以上濒临灭绝的动物
2.描述对比他们之前和现在的数量差
3.试着分析他们数量减少的原因
参考单词&词组:
in the wild(在野外);bamboo(竹子);habitat(栖息地);illegal hunting(非法捕猎);take action(采取行动)
参考句型:
1.The number of... in the wild is very small.
2.They are in danger because of...
3.We should take action to protect them.
范文3
Animals in Danger
The number of these animals in the wild is very small. There are only about one thousand eight hundred pandas, likely no South China tigers and around ten thousand blue whales in the wild now.(濒危动物种类及数量情况)
Pandas feed on bamboo, South China tigers are good at running, and blue whales are the largest animals on Earth. They are in danger because of many reasons. Their habitats are reducing as forests are cut down, and some people even hunt them illegally. (濒危动物特征、濒危原因)
I think everyone should care about animals in danger. We should take action to protect their habitats and stop illegal hunting.(呼吁保护动物)
6
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
$$