内容正文:
八上 Unit 4 Amazing Plants and Animals. Section B重要知识点
We Can't Live Without Bees 没有蜜蜂我们无法生存
- without [介词] 没有;缺乏
- 后接名词、人称代词宾格或动词-ing形式,表示伴随或假设。
- 反义词为with(具有;带有)。
- 例:Fish can't live without water.(没有水,鱼无法生存。)
- 拓展:含without的句子可与“if...not...”结构同义转换。
例:I couldn't finish the work without your help. = If you didn't help me, I couldn't finish the work.
Imagine you go to the supermarket... 想象你去超市……
- imagine [及物动词] 想象;猜想
- 后接名词、代词、动词-ing形式或从句。
- 例:Imagine (sb) doing sth(想象某人做某事);I can't imagine what our life will be like.(我无法想象我们的生活会怎样。)
- honey [名词]
- ① 蜂蜜(不可数):I like honey in tea.(我喜欢在茶里加蜂蜜。)
- ② 亲爱的(爱称):Honey, help me with housework.(亲爱的,帮我做家务。)
Disappointed? 失望?
- disappointed [形容词] 失望的;沮丧的(说明人的感受,作表语)
- 搭配:be disappointed with/in...(对……感到失望)。
- 例:She was disappointed in her band's new song.(她对乐队的新歌感到失望。)
- 拓展
- disappointing [形容词] 令人失望的(说明事物特征)。
- disappoint [动词] 使失望:The result disappointed him.(结果让他失望。)
At this moment you realize... 这时你意识到……
- connected [形容词] 连接的;相关的
- 搭配:be connected with/to...(与……相连/有关联)。
- 例:Food is connected with local culture.(食物与当地文化相关。)
- 拓展
- connect [动词] 关联;连接:connect A with B(将A与B连接)。
- connection [名词] 连接;关系:a connection between pollution and trees(污染与树木的关系)。
This action helps plants grow. 这一行为帮助植物生长。
- action [名词] 行动;行为
- 搭配:take action (to do sth) 采取行动(做某事)。
- 例:We should take action to protect animals.(我们应采取行动保护动物。)
In fact, without their work... 事实上,没有它们的工作……
- in fact 确切地说;实际上
- 例:In fact, she is talented in music.(事实上,她有音乐天赋。)
- per cent (= percent) [名词] 百分之……
- 结构:基数词 + percent + of...(作主语时,谓语单复数由of后名词决定)。
- 例:70% of apples are red.(70%的苹果是红的。);20% of water is iced.(20%的水被冰覆盖。)
For this reason, many scientists believe... 出于这个原因,许多科学家认为……
- for this reason 出于这个原因(句首,逗号隔开)。
- 例:For this reason, I missed the party.(出于这个原因,我没参加聚会。)
For example, they work hard together... 例如,它们一起努力……
- work hard together 共同努力;齐心协力
- 拓展:pull together(一群人同心协力):If we pull together, we'll finish on time.(若齐心协力,我们能按时完成。)
In order to store honey... 为了储存蜂蜜……
- in order to 为了;以便(后接动词原形,可放句首或句中)
- 否定:in order not to do...
- 例:In order to care for parents, he returned home.(为了照顾父母,他回家乡工作。)
- 拓展:in order that + 从句(为了):He gets up early in order that he can be on time.(他早起以便按时上班。)
- store [动词/名词]
- ① 贮存(动词):store food for winter(储存过冬食物)。
- ② 商店(名词):buy pens at the store(在商店买笔)。
Another interesting thing... 关于蜜蜂的另一件趣事……
- communicate [动词]
- ① 交流:communicate with sb(与某人交流)。
- ② 传达:communicate ideas(传达想法)。
Bees play an important part... 蜜蜂在生态系统中发挥重要作用。
- play a part (in sth) 参与;在……中发挥作用
- 同义:take part in(参与);play a role in(发挥作用)。
- 例:Education plays a part in it.(教育在其中起作用。)
However, the number of bees is dropping... 然而,蜜蜂数量在下降……
- 辨析:the number of vs a number of
- the number of(……的数量):主语时谓语单数。
例:The number of students is 50.(学生数量是50。)
- a number of(许多):主语时谓语复数。
例:A number of students are playing.(许多学生在玩耍。)
Bees need our help... 蜜蜂需要我们的帮助……
- a lot
- ① 很多(名词短语):Sometimes there's a lot of snow.(有时雪很多。)
- ② 很,非常(副词):It rains a lot.(雨下得很频繁。)
- 拓展:a lot of/lots of(许多):后接可数/不可数名词。
Think about what you can do... 想想你能做什么……
- protect [动词] 保护;防护
- 搭配:protect...from/against...(保护……免受……)。
- 例:Wear sunglasses to protect eyes from sunlight.(戴墨镜保护眼睛免受阳光伤害。)
- importance [不可数名词] 重要性
- 搭配:the importance of (doing) sth(做某事的重要性)。
- 例:Realize the importance of studying.(意识到学习的重要性。)
What do you know about... 你对人类和其他昆虫的联系了解多少?
- human [名词/形容词]
- ① 人(可数,复数humans):Dogs hear better than humans.(狗的听觉比人好。)
- ② 人的(形容词):human body(人体)。
- 辨析:such as vs for example
- such as:列举同类事物(无逗号,直接加名词):cities such as Beijing(如北京这样的城市)。
- for example:举例(用逗号隔开,可放句首/中/末):Noise, for example, is pollution.(例如,噪音是一种污染。)
They are home to many birds. 它们是许多鸟类的家园。
- be home to sb/sth 是……的栖息地;是……的家乡
- 例:The forest is home to wild animals.(森林是野生动物的栖息地。)
happiness [不可数名词] 幸福;快乐
- 例:Share my happiness with you.(与你分享我的幸福。)
- 拓展:形容词+ -ness构成名词(如good→goodness,sad→sadness)。
It weighs/weighed a ton. 它非常重。
- ton [可数名词] 吨
- 例:An elephant weighs several tons.(大象重几吨。)
- 拓展:tons of(大量的):tons of presents(很多礼物)。
You may not realize it... 你可能没意识到……
- play a role (in)
- ① 发挥作用:Schools play a role in education.(学校在教育中起作用。)
- ② 扮演角色:Play an important role in a movie.(在电影中扮演重要角色。)
The smallest frogs are about... 最小的青蛙大约……
- while [连词]
- ① 而;然而(对比):I like coffee while my sister likes tea.(我喜欢咖啡,而姐姐喜欢茶。)
- ② 当……时(引导时间状语从句,谓语用延续性动词):While we talked, the teacher came in.(我们说话时,老师进来了。)
However, not everyone understands... 然而,并非每个人都明白……
- 部分否定:not + every/everyone/all/both表示“并非都”。
- 例:Not all students like English.(并非所有学生都喜欢英语。)
- Both of them are not good at dancing.(并非他们两个都擅长跳舞。)
Many people like watching blue whales... 许多人喜欢观赏蓝鲸……
- 辨析:watch sb do sth vs watch sb doing sth
- watch sb do sth:看到动作全过程。
例:I watched him get into the room.(我看到他进了房间。)
- watch sb doing sth:看到动作正在进行。
例:He watched them eating.(他看见他们在吃东西。)
Blue whales live in all oceans... 蓝鲸生活在除北冰洋外的所有海洋。
- 辨析:except, except for, but, besides
- except/but:同类中排除(不包括):We are all here except Tom.(除了汤姆,我们都在。)
- except for:整体肯定,局部否定(修正):He is good except for his temper.(除了脾气,他很好。)
- besides:除……外还有(包括):Besides milk, we need vegetables.(除了牛奶,还需要蔬菜。)
This food lasts for over a year... 这些食物能维持一年多……
- last [动词/形容词/副词/名词]
- ① 持续(动词):How long will the weather last?(坏天气会持续多久?)
- ② 上一个的(形容词):last week(上周)。
- ③ 最后(副词):When did you last see him?(你上次什么时候见他?)
- ④ 最后的人/事物(名词):He was the last to leave.(他最后离开。)
How long they live 它们的寿命
- 辨析:how long, how often, how soon, how far
- how long:时间多长/物体多长(答语:for + 时间段/长度)。
- how often:频率(答语:once a week等)。
- how soon:多久以后(答语:in + 时间段)。
- how far:距离多远(答语:5 kilometers等)。
- 真题链接(福建中考)
- 问:How long have you been a member?(你加入多久了?)
- 答:For two years.(两年。)
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