资源简介

(共47张PPT)
Unit 7 Outdoor fun
七年级
译林2024版
下
单词解析二
1.at first 起初
[易混辨析] at first与first of all 区别
at first译为“最初、起初”，强调时间上的先后顺序;
first of all译为“第一、首先”，强调事物排列顺序或重要性。
Eg: At first, let me introduce my friend Mike to you. 首先，我来给你介绍一下我的朋友。
First of all, let me tell you the news. 首先，让我告诉你这个消息。
[知识拓展] first为one的序数词形式，译为“第一”;first也可为形容词，译为“最初的”。
Eg: She won the first place in the race.她在比赛中获得了第一名。
The is the first time that I have heard of it.这是我第一次听说这件事。
2.little by little缓慢地、逐渐地
[用法讲解] little by little用来描述逐渐发生或逐渐实现的过程。
Eg: Little by little, he learned to play the guitar. 他一点一点地学会了弹吉他。
3.picnic (名词) 野餐
[用法讲解]picnic为可数名词;picnic还可作动词，表示进行野餐的行为。
Eg: We packed a picnic for the beach. 我们为去海边准备了野餐。
We picnicked in the park yesterday.我们昨天在公园里野餐了。
[常见搭配]have a picnic = go on a picnic去野餐
Eg: Let's have a picnic this weekend. = Let's go on a picnic this weekend.这周末让我们去野餐吧。
4.because of (介词)因为
[易混辨析]because和because of区别
because of是一个短语，用来引导名词或名词短语;
because是一个连词，用来引导句子。
Eg: He couldn't attend the meeting because of the traffic.他无法参加会议，因为交通堵塞。
She stayed at home because she was feeling sick.她待在家里，因为她感到不舒服。
5.campsite (名词)野营地
[用法讲解] campsite为可数名词，其复数形式为campsites。
Eg: A campsite is a place where people on holiday can pitch a tent.
一个露营地是人们可以在那搭帐篷的地方。
Several campsites are available in the park.公园里有几个露营地可供选择。
6.childhood (名词)童年、幼年
[用法讲解] childhood在表示“不同人的童年”时，为可数名词，其复数形式为childhoods;在泛指“童年、幼年”时为不可数名词。
Eg: She had a happy childhood.她有一个幸福的童年。
They spent their childhoods in the countryside.他们在乡下度过了他们的童年。
I remember this place from my childhood.我从小就记得这个地方。
[派生词] child为可数名词，译为“孩子”，其复数形式为children。
Eg: As a child I didn't eat vegetables. 小时候我不吃蔬菜。
The children are playing in the park.孩子们在公园里玩耍。
7.relaxed (形容词)放松的、冷静的
[用法讲解]relaxed为形容词，译为“感到放松的、轻松的”，常常用来修饰人。
Eg: She looked very relaxed after her vacation. 度假后的她看起来非常放松。
[派生词]relaxing用来描述使人感到放松的事物或环境，常常用来修饰物;
relax为动词，译为“放松”。
Eg: We had a relaxing weekend at the countryside.我们在乡下度过了一个放松的周末。
I just want to sit down and relax.我只想坐下休息会。
[常见搭配]a relaxing walk一次放松的散步
be relaxed about ... 对...感到放松
relax oneself让自己放松
Eg: I plan to take a relaxing walk in the park.我计划在公园里进行一次放松的散步。
Don't be afraid, just be relaxed about the interview.不要害怕，轻松面试。
You should relax yourself.你应该让自己放松一下。
8.ever (副词)在任何时候、曾经
[用法讲解]ever常用于一般疑问句中，询问过去是否发生或存在过某事;ever也可用于特殊疑问句中，加强语气，表示惊异或追问;ever也可用于条件句中，表示假设的情况或条件。
Eg: Did you ever see such a beautiful sunset 你曾经见过这么美丽的日落吗
Where ever did you get that information 你到底从哪里得到的信息
If you ever need help, just let me know.如果你需要帮助，随时告诉我。
[常见搭配] ever since自从...
hardly ever 几乎从不
Eg: Ever since I met you, my life has changed.自从我遇见你，我的生活就变了。
We hardly ever go out for dinner.我们几乎从不出去吃晚饭。
9.focus (动词)集中(注意力、精力等于、聚集(于)
[用法讲解]focus还可为名词，译为“中心点、焦点，焦距”。
[常见搭配] focus on ...集中于...
focus one's mind on sth.集中注意力于某事
focus the camera on sth.使照相机对准某物
the focus of sth.某物的焦点/中心
in focus(摄影中)清晰的、焦点对准的
out of focus焦点没对准的
Eg:I tried to focus my mind on the task at hand.我试图把心思集中在手头的任务上。
He quickly focused the camera on the beautiful scenery.他迅速把相机对准了美丽的风景。
This issue was the main focus of the meeting.这个问题是会议的主要议题。
The photograph is in focus.这张照片很清晰。
The background of the photograph is out of focus.这张照片的背景模糊不清。
10.mind(名词)头脑、思考能力、聪明人
[用法讲解]mind也可作动词，译为“介意”。
[常见搭配]change one's mind改变某人的主意
make up one's mind ((to do sth.)下决心(做某事)
mind (one's) doing sth.“介意(某人)做某事”
mind +从句
Eg: She made up her mind to improve her English.她下定决心提高她的英语。
Would you mind my opening the door 你介意我开门吗
I don't mind if you have free time.我不介意你是否有空闲时间。
11.roll(动词)使...成球状(或管状);(名词)卷、卷轴
[用法讲解] roll作动词，还可译为“滚动、转动、行驶、(时间)流逝”等。
Eg: The ball is rolling down the hill.小球正在滚下山坡。
She rolled her eyes.她翻了翻白眼。
The ship rolled in the waves.船在波浪中摇晃。
The truck rolled down the highway.卡车在高速公路上行驶。
The years rolled by.岁月流逝。
I need a roll of tape.我需要一卷胶带。
[常见搭配]roll out 展开
roll up one's sleeves卷起袖子
Eg: The soldier quickly rolled out his sleeping bag.士兵迅速展开了他的睡袋。
It's time to roll up our sleeves and tackle the problem together.是时候卷起袖子一起解决这个问题。
12.sleeping bag (名词)睡袋
[用法讲解]sleeping bag为可数名词，其复数形式为sleeping bags。
Eg: I have three sleeping bags.我有三个睡袋。
13.fall(动词)进入(某状态)、落下、掉落、倒下
[用法讲解] fall作动词时，其过去式为fell，过去分词为fallen;fall还可以作名词，为美式英语中的“秋天”，autumn为英式英语中的“秋天”。
Eg: The leaves begin to fall when autumn comes.树叶在秋天开始落下。
It's very slippery. You'll fall.地面很滑，你会跌倒的。
No one knows why the house prices have fallen.没人直到为什么房价下跌了。
[用法讲解]fall down跌倒、落下
fall ill生病
fall asleep入睡、睡着
fall behind落后、掉队
fall rain秋雨
Eg: She accidentally fell down the stairs.她不小心从楼梯上摔下来了。
He fell ill after eating the contaminated food.他吃了被污染的食物后生病了。
He fell asleep while reading the book.他在读书时睡着了。
I fell behind the class in math.我在数学上落后于全班同学。
The fall rain made the streets wet and slippery.秋雨让街道变得潮湿光滑。
14.asleep (形容词)睡着
[用法讲解] asleep在句中常位于系动词后作表语;asleep偶尔也可位于名词前作定语。
[常见搭配]fall asleep入睡、睡着
stay asleep保持睡眠状态、不醒来
wake up from asleep从睡眠中醒来
be half asleep半睡半醒、迷迷糊糊
light asleep熟睡、沉睡
Eg: I couldn't fall asleep last night.我昨晚睡不着。
The baby stayed asleep through the whole night. 婴儿整晚都睡得很好。
He woke up from a deep asleep.他从深度睡眠中醒来。
I was half asleep when the phone rang.电话响的时候我还半梦半醒。
He was light asleep and didn't hear the alarm clock.他睡得很熟，没听到闹钟
[易混辨析] sleepy、asleep、sleeping区别
sleepy用来形容人或动物在缺乏睡眠或休息时表示出来的样子;
asleep用来形容入睡的状态，通常用作表语;
sleeping用来强调正进行的动作，可作定语或伴随状语。
Eg: The children have been asleep.孩子们已经睡着了。
The little boy is sleeping now.小男孩正在睡觉。
15.chance (名词)机会、可能性
[用法讲解]chance还可为动词，译为“偶然发生、碰巧”等。
Eg: Seize the chance when it comes.当机会到来时要抓住它。
There is a chance of it raining today.今天有可能下雨。
I'm going to chance it and not take an umbrella. 我打算不带伞碰碰运气。
[常见搭配]by chance偶然地
take a chance冒险
chance to do sth.碰巧做某事
chance doing sth.冒险做某事
Eg: By chance, I found the book I was looking for.偶然第，我发现了我正在寻找的书。
She decided to take a chance and invest in the new business.她决定冒险投资这个新生意。
I chanced to be out when he called.他来拜访时，碰巧我不在家。
Father will not chance driving on the icy road. 父亲不愿意冒险在结冰的道路上开车。
16.first - time(形容词)首次的、第一次的
Eg: The first time I saw her, I knew she was special. 我第一次见到她时，就知道她很特别。
[易混辨析]the first time 和for the first time区别
the first time译为“第一次...的时候”，强调的是某个动作或事件发生的第一次时间或时间段;
for the first time译为“第一次”，用来描述某件事是第一次发生或某人第一次做某事。
Eg: This is the first time that I have been to the Great Wall.这是第一次去过长城。
I visited Paris for the first time last summer.我去年夏天第一次访问了巴黎。
17.camper (名词)露营者
[用法讲解] camper为可数名词，其复数形式为 campers.
Eg: A camper is someone who is camping somewhere.一个露营者是在某个地方露营的人。
[派生词] camp为名词，译为“野营”。
[常见搭配]go camping去野营
Eg: They went camping in the mountains for the weekend.他们周末去山里露营了。
18.medicine (名词)药物、医学
[用法讲解] medicine表示“药、药物”时为不可数名词;medicine表示“不同种类的药物”时为可数名词，其复数形式为medicines.
Eg: There are many medicines for treating colds. 有许多治疗感冒的药物。
[常见搭配] take some medicine吃药
Eg: He has to take some medicine every day.他不得不每天吃药。
19.safety (名词)安全、平安、安全处所
[用法讲解]safety表示“安全、平安”时为不可数名词;safety表示“安全设备、安全措施”时为可数名
Eg: The safety of the passengers is our top priority. 乘客的安全是我们的优选。
Thecar is equipped with multiple safeties to prevent accidents.
这辆车配备了多种安全装置，以防止事故发生。
[派生词] safe为形容词，译为“安全的”。
Eg: The road is safe.这条路很安全。
[常见搭配]be safe to do sth.一定会做某事
be safe in doing sth.做某事不会错
Eg: He's safe to buy the house.他一定会买下这座房子。
He's safe in buying the house.他把这座房子买下不会错。
20.birdwatching (名词)观鸟
[常见搭配]go birdwatching 去观鸟
Eg: I often go birdwatching in the park on weekends.我经常周末去公园观鸟。
21.binoculars (名词)(复数)双筒望远镜
[用法讲解]binoculars常以复数形式出现，类似glasses(眼镜)等。
Eg: He found the binoculars and focused them on the boat.他找到双筒望远镜，然后调焦对准那艘船。
[常见搭配] a pair of binoculars一副双筒望远镜
Eg: My father bought me a pair of binoculars yesterday.我爸爸昨天给我买了一副双筒望远镜。
22.clearly(副词)清楚地、明显地、明白地
[用法讲解] clearly常在句中修饰动词、形容词或整个句子。
Eg: She explained the rules clearly.她清晰地解释了规则。
The instructions were written clearly so that even a child could follow them.
说明书写得很清楚，连孩子都能看懂。
[派生词]clear为形容词，译为“清晰的、明确的”;clear也可为动词，译为“清除”。
Eg: The instructions were very clear.说明非常清晰。
The sky was clear and blue.天空晴朗蔚蓝。
Please clear the table.请收拾一下桌子。
23.had better应该、最好
[用法讲解]had better常用来给出建议，语气比较委婉但带有一定的强制性，本身没有时态变化。
[常见搭配]had better do sth.最好做某事
had better not do sth.最好不做某事
Eg: You had better study hard.你最好努力学习。
You had better not stay up late.你最好不要熬夜。
24.thirsty (形容词)口渴的
Eg: I need a drink, I am thirsty.我需要喝点东西，我口渴了。
[常见搭配]be thirsty for...渴望得到...，对...有渴望
Eg: Young man shouldbe thirsty for knowledge because they are in their prime.
青年人应该渴望知识，因为他们正年轻。
25.no problem 没什么、不客气、没问题
[用法讲解]当有人向你提出请求或询问或回答别人的感谢时，常用no problem回答。
Eg: -- Can you finish the report by tomorrow 你能在明天之前完成这份报告吗
-- No problem.没问题。
[知识拓展]problem为可数名词，译为“问题、难题”;problem也可作形容词，译为“难应付的、有问题”。
Eg: This is a mathematical problem.这是一个数学问题。
This is a problem child.这是一个问题儿童。
【常见搭配】have problems with sth.在某方面有问题
solve a problem解决问题
no problem没问题
It's not my problem.那不关我的事
Eg: He can solve the problem.他能解决这个问题。
I have problems with my memory.我记忆方面有问题。
It's not my problem. You should handle it yourself.这不关我的事。你应该自己处理。
[易混辨析] problem和question区别
problem指客观存在的、难以解决或涉及到实际的复杂情景，需要深入思考的问题，与solve连用;
question侧重由于对某事疑惑不解而提出的问题，通常是为了获取信息或寻求答案，与answer连用。
Eg:Aging of population is a serious problem.人口老龄化是一个严重的问题。
Do you have any other questions 你还有什么其它问题吗
26.camera (名词)照相机
[用法讲解] camera为可数名词，其复数形式为cameras.
Eg: I want to take a picture with my new camera.我想用我的新相机拍一张照片。
27.narrow (形容词)狭窄的
[用法讲解]narrow还可为动词，译为“缩小、变窄”。
Eg: The narrow street was crowded with people. 狭窄的街道上挤满了人。
The road narrows here.路在这儿变窄了。
[常见搭配] narrow one's eyes眯起眼睛
narrow down缩小
Eg: He narrowed his eyes, not convinced by her explanation.他眯起眼睛，对她的解释并不信服。
She narrowed down her choices for college to just two schools.她把大学的选择范围缩小到了两所学校。
[派生词] narrowness为名词，译为“狭小、狭窄”。
Eg: The problem with achievement tests is the narrowness they impose on students.
成绩测验的问题在于它们施加给学生的限制。
28.support (动词/名词)帮助、支持、支撑
Eg: He supported himself on two sticks.他拄着两根拐棍。
He has a large family to support.他要抚养一大家人。
There is little evidence to support his idea.没有多少证据能支持他的想法。
The bridge needs more supports.这座桥需要更多的支撑物。
The support of our members is of great importance to the Association.
会员的支持对我们协会来说非常重要。
[常见搭配]support sb. in sth.在某方面支持某人
provide support for ... 为...提供支持
support oneself by ...靠...养活自己
support against ...支持...反对...
Eg: I will support you in your decision.我会支持你的决定。
The government provides financial support for small businesses.政府为小型企业提供财政支持。
She supports herself by writing novels.她靠写小说养活自己。
We should support the weak against the strong.我们应该支持弱者对抗强者。
[派生词]supporter为名词，译为“支持者”。
Eg: He is a vigorous supporter of human rights. 他是一个积极拥护人权运动的人。
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Unit 7 Outdoor fun 单词解析二
1.at first 起初
[易混辨析] at first与first of all 区别
at first译为“最初、起初”，强调时间上的先后顺序;
first of all译为“第一、首先”，强调事物排列顺序或重要性。
Eg: At first, let me introduce my friend Mike to you. 首先，我来给你介绍一下我的朋友。
First of all, let me tell you the news. 首先，让我告诉你这个消息。
[知识拓展] first为one的序数词形式，译为“第一”;first也可为形容词，译为“最初的”。
Eg: She won the first place in the race.她在比赛中获得了第一名。
The is the first time that I have heard of it.这是我第一次听说这件事。
2.little by little缓慢地、逐渐地
[用法讲解] little by little用来描述逐渐发生或逐渐实现的过程。
Eg: Little by little, he learned to play the guitar. 他一点一点地学会了弹吉他。
3.picnic (名词) 野餐
[用法讲解]picnic为可数名词;picnic还可作动词，表示进行野餐的行为。
Eg: We packed a picnic for the beach. 我们为去海边准备了野餐。
We picnicked in the park yesterday.我们昨天在公园里野餐了。
[常见搭配] have a picnic = go on a picnic 去野餐
Eg: Let's have a picnic this weekend. = Let's go on a picnic this weekend.这周末让我们去野餐吧。
4.because of (介词)因为
[易混辨析]because和because of区别
because of是一个短语，用来引导名词或名词短语;
because是一个连词，用来引导句子。
Eg: He couldn't attend the meeting because of the traffic.他无法参加会议，因为交通堵塞。
She stayed at home because she was feeling sick.她待在家里，因为她感到不舒服。
5.campsite (名词)野营地
[用法讲解] campsite为可数名词，其复数形式为campsites。
Eg: A campsite is a place where people on holiday can pitch a tent.
一个露营地是人们可以在那搭帐篷的地方。
Several campsites are available in the park.公园里有几个露营地可供选择。
6.childhood (名词)童年、幼年
[用法讲解] childhood在表示“不同人的童年”时，为可数名词，其复数形式为childhoods;在泛指“童年、幼年”时为不可数名词。
Eg: She had a happy childhood.她有一个幸福的童年。
They spent their childhoods in the countryside.他们在乡下度过了他们的童年。
I remember this place from my childhood.我从小就记得这个地方。
[派生词] child为可数名词，译为“孩子”，其复数形式为children。
Eg: As a child I didn't eat vegetables. 小时候我不吃蔬菜。
The children are playing in the park.孩子们在公园里玩耍。
7.relaxed (形容词)放松的、冷静的
[用法讲解]relaxed为形容词，译为“感到放松的、轻松的”，常常用来修饰人。
Eg: She looked very relaxed after her vacation. 度假后的她看起来非常放松。
[派生词]relaxing用来描述使人感到放松的事物或环境，常常用来修饰物;
relax为动词，译为“放松”。
Eg: We had a relaxing weekend at the countryside.我们在乡下度过了一个放松的周末。
I just want to sit down and relax.我只想坐下休息会。
[常见搭配] a relaxing walk一次放松的散步
be relaxed about ... 对...感到放松
relax oneself让自己放松
Eg: I plan to take a relaxing walk in the park.我计划在公园里进行一次放松的散步。
Don't be afraid, just be relaxed about the interview.不要害怕，轻松面试。
You should relax yourself.你应该让自己放松一下。
8.ever (副词)在任何时候、曾经
[用法讲解]ever常用于一般疑问句中，询问过去是否发生或存在过某事;ever也可用于特殊疑问句中，加强语气，表示惊异或追问;ever也可用于条件句中，表示假设的情况或条件。
Eg: Did you ever see such a beautiful sunset 你曾经见过这么美丽的日落吗
Where ever did you get that information 你到底从哪里得到的信息
If you ever need help, just let me know.如果你需要帮助，随时告诉我。
[常见搭配] ever since自从...
hardly ever 几乎从不
Eg: Ever since I met you, my life has changed.自从我遇见你，我的生活就变了。
We hardly ever go out for dinner.我们几乎从不出去吃晚饭。
9.focus (动词)集中(注意力、精力等于、聚集(于)
[用法讲解] focus还可为名词，译为“中心点、焦点，焦距”。
[常见搭配] focus on ...集中于...
focus one's mind on sth.集中注意力于某事
focus the camera on sth.使照相机对准某物
the focus of sth.某物的焦点/中心
in focus (摄影中)清晰的、焦点对准的
out of focus 焦点没对准的
Eg:I tried to focus my mind on the task at hand.我试图把心思集中在手头的任务上。
He quickly focused the camera on the beautiful scenery.他迅速把相机对准了美丽的风景。
This issue was the main focus of the meeting.这个问题是会议的主要议题。
The photograph is in focus.这张照片很清晰。
The background of the photograph is out of focus.这张照片的背景模糊不清。
10.mind(名词)头脑、思考能力、聪明人
[用法讲解]mind也可作动词，译为“介意”。
[常见搭配]change one's mind改变某人的主意
make up one's mind ((to do sth.)下决心(做某事)
mind (one's) doing sth.“介意(某人)做某事”
mind +从句
Eg: She made up her mind to improve her English.她下定决心提高她的英语。
Would you mind my opening the door 你介意我开门吗
I don't mind if you have free time. 我不介意你是否有空闲时间。
11.roll(动词)使...成球状(或管状);(名词)卷、卷轴
[用法讲解] roll作动词，还可译为“滚动、转动、行驶、(时间)流逝”等。
Eg: The ball is rolling down the hill.小球正在滚下山坡。
She rolled her eyes.她翻了翻白眼。
The ship rolled in the waves.船在波浪中摇晃。
The truck rolled down the highway.卡车在高速公路上行驶。
The years rolled by.岁月流逝。
I need a roll of tape.我需要一卷胶带。
[常见搭配]roll out 展开
roll up one's sleeves卷起袖子
Eg: The soldier quickly rolled out his sleeping bag.士兵迅速展开了他的睡袋。
It's time to roll up our sleeves and tackle the problem together.是时候卷起袖子一起解决这个问题。
12.sleeping bag (名词)睡袋
[用法讲解]sleeping bag为可数名词，其复数形式为sleeping bags。
Eg: I have three sleeping bags.我有三个睡袋。
13.fall(动词)进入(某状态)、落下、掉落、倒下
[用法讲解] fall作动词时，其过去式为fell，过去分词为fallen;fall还可以作名词，为美式英语中的“秋天”，autumn为英式英语中的“秋天”。
Eg: The leaves begin to fall when autumn comes.树叶在秋天开始落下。
It's very slippery. You'll fall.地面很滑，你会跌倒的。
No one knows why the house prices have fallen.没人直到为什么房价下跌了。
[用法讲解] fall down 跌倒、落下
fall ill 生病
fall asleep入睡、睡着
fall behind 落后、掉队
fall rain 秋雨
Eg: She accidentally fell down the stairs.她不小心从楼梯上摔下来了。
He fell ill after eating the contaminated food.他吃了被污染的食物后生病了。
He fell asleep while reading the book.他在读书时睡着了。
I fell behind the class in math. 我在数学上落后于全班同学。
The fall rain made the streets wet and slippery.秋雨让街道变得潮湿光滑。
14.asleep (形容词)睡着
[用法讲解] asleep在句中常位于系动词后作表语;asleep偶尔也可位于名词前作定语。
[常见搭配]fall asleep 入睡、睡着
stay asleep 保持睡眠状态、不醒来
wake up from asleep从睡眠中醒来
be half asleep 半睡半醒、迷迷糊糊
light asleep 熟睡、沉睡
Eg: I couldn't fall asleep last night.我昨晚睡不着。
The baby stayed asleep through the whole night. 婴儿整晚都睡得很好。
He woke up from a deep asleep. 他从深度睡眠中醒来。
I was half asleep when the phone rang.电话响的时候我还半梦半醒。
He was light asleep and didn't hear the alarm clock.他睡得很熟，没听到闹钟
[易混辨析] sleepy、asleep、sleeping区别
sleepy用来形容人或动物在缺乏睡眠或休息时表示出来的样子;
asleep用来形容入睡的状态，通常用作表语;
sleeping用来强调正进行的动作，可作定语或伴随状语。
Eg: The children have been asleep.孩子们已经睡着了。
The little boy is sleeping now.小男孩正在睡觉。
15.chance (名词)机会、可能性
[用法讲解] chance还可为动词，译为“偶然发生、碰巧”等。
Eg: Seize the chance when it comes.当机会到来时要抓住它。
There is a chance of it raining today.今天有可能下雨。
I'm going to chance it and not take an umbrella. 我打算不带伞碰碰运气。
[常见搭配] by chance 偶然地
take a chance 冒险
chance to do sth.碰巧做某事
chance doing sth.冒险做某事
Eg: By chance, I found the book I was looking for.偶然第，我发现了我正在寻找的书。
She decided to take a chance and invest in the new business.她决定冒险投资这个新生意。
I chanced to be out when he called.他来拜访时，碰巧我不在家。
Father will not chance driving on the icy road. 父亲不愿意冒险在结冰的道路上开车。
16.first - time(形容词)首次的、第一次的
Eg: The first time I saw her, I knew she was special. 我第一次见到她时，就知道她很特别。
[易混辨析] the first time 和for the first time区别
the first time译为“第一次...的时候”，强调的是某个动作或事件发生的第一次时间或时间段;
for the first time译为“第一次”，用来描述某件事是第一次发生或某人第一次做某事。
Eg: This is the first time that I have been to the Great Wall.这是第一次去过长城。
I visited Paris for the first time last summer.我去年夏天第一次访问了巴黎。
17.camper (名词)露营者
[用法讲解] camper为可数名词，其复数形式为 campers.
Eg: A camper is someone who is camping somewhere.一个露营者是在某个地方露营的人。
[派生词] camp为名词，译为“野营”。
[常见搭配]go camping去野营
Eg: They went camping in the mountains for the weekend.他们周末去山里露营了。
18.medicine (名词)药物、医学
[用法讲解] medicine表示“药、药物”时为不可数名词;medicine表示“不同种类的药物”时为可数名词，其复数形式为medicines.
Eg: There are many medicines for treating colds. 有许多治疗感冒的药物。
[常见搭配] take some medicine吃药
Eg: He has to take some medicine every day.他不得不每天吃药。
19.safety (名词)安全、平安、安全处所
[用法讲解] safety表示“安全、平安”时为不可数名词;safety表示“安全设备、安全措施”时为可数名
Eg: The safety of the passengers is our top priority. 乘客的安全是我们的优选。
The car is equipped with multiple safeties to prevent accidents.
这辆车配备了多种安全装置，以防止事故发生。
[派生词] safe为形容词，译为“安全的”。
Eg: The road is safe.这条路很安全。
[常见搭配] be safe to do sth. 一定会做某事
be safe in doing sth.做某事不会错
Eg: He's safe to buy the house.他一定会买下这座房子。
He's safe in buying the house.他把这座房子买下不会错。
20.birdwatching (名词)观鸟
[常见搭配]go birdwatching 去观鸟
Eg: I often go birdwatching in the park on weekends.我经常周末去公园观鸟。
21.binoculars (名词)(复数)双筒望远镜
[用法讲解]binoculars常以复数形式出现，类似glasses(眼镜)等。
Eg: He found the binoculars and focused them on the boat.他找到双筒望远镜，然后调焦对准那艘船。
[常见搭配] a pair of binoculars一副双筒望远镜
Eg: My father bought me a pair of binoculars yesterday.我爸爸昨天给我买了一副双筒望远镜。
22.clearly(副词)清楚地、明显地、明白地
[用法讲解] clearly常在句中修饰动词、形容词或整个句子。
Eg: She explained the rules clearly. 她清晰地解释了规则。
The instructions were written clearly so that even a child could follow them.
说明书写得很清楚，连孩子都能看懂。
[派生词]clear为形容词，译为“清晰的、明确的”;clear也可为动词，译为“清除”。
Eg: The instructions were very clear.说明非常清晰。
The sky was clear and blue. 天空晴朗蔚蓝。
Please clear the table.请收拾一下桌子。
23.had better应该、最好
[用法讲解] had better常用来给出建议，语气比较委婉但带有一定的强制性，本身没有时态变化。
[常见搭配]had better do sth. 最好做某事
had better not do sth.最好不做某事
Eg: You had better study hard. 你最好努力学习。
You had better not stay up late.你最好不要熬夜。
24.thirsty (形容词)口渴的
Eg: I need a drink, I am thirsty.我需要喝点东西，我口渴了。
[常见搭配] be thirsty for...渴望得到...，对...有渴望
Eg: Young man should be thirsty for knowledge because they are in their prime.
青年人应该渴望知识，因为他们正年轻。
25.no problem 没什么、不客气、没问题
[用法讲解]当有人向你提出请求或询问或回答别人的感谢时，常用no problem回答。
Eg: -- Can you finish the report by tomorrow 你能在明天之前完成这份报告吗
-- No problem.没问题。
[知识拓展]problem为可数名词，译为“问题、难题”;problem也可作形容词，译为“难应付的、有问题”。
Eg: This is a mathematical problem.这是一个数学问题。
This is a problem child. 这是一个问题儿童。
【常见搭配】have problems with sth.在某方面有问题
solve a problem 解决问题
no problem 没问题
It's not my problem. 那不关我的事
Eg: He can solve the problem. 他能解决这个问题。
I have problems with my memory.我记忆方面有问题。
It's not my problem. You should handle it yourself.这不关我的事。你应该自己处理。
[易混辨析] problem和question区别
problem指客观存在的、难以解决或涉及到实际的复杂情景，需要深入思考的问题，与solve连用;
question侧重由于对某事疑惑不解而提出的问题，通常是为了获取信息或寻求答案，与answer连用。
Eg: Aging of population is a serious problem.人口老龄化是一个严重的问题。
Do you have any other questions 你还有什么其它问题吗
26.camera (名词)照相机
[用法讲解] camera为可数名词，其复数形式为 cameras.
Eg: I want to take a picture with my new camera.我想用我的新相机拍一张照片。
27.narrow (形容词)狭窄的
[用法讲解] narrow还可为动词，译为“缩小、变窄”。
Eg: The narrow street was crowded with people. 狭窄的街道上挤满了人。
The road narrows here.路在这儿变窄了。
[常见搭配] narrow one's eyes眯起眼睛
narrow down 缩小
Eg: He narrowed his eyes, not convinced by her explanation.他眯起眼睛，对她的解释并不信服。
She narrowed down her choices for college to just two schools.她把大学的选择范围缩小到了两所学校。
[派生词] narrowness为名词，译为“狭小、狭窄”。
Eg: The problem with achievement tests is the narrowness they impose on students.
成绩测验的问题在于它们施加给学生的限制。
28.support (动词/名词)帮助、支持、支撑
Eg: He supported himself on two sticks.他拄着两根拐棍。
He has a large family to support. 他要抚养一大家人。
There is little evidence to support his idea.没有多少证据能支持他的想法。
The bridge needs more supports.这座桥需要更多的支撑物。
The support of our members is of great importance to the Association.
会员的支持对我们协会来说非常重要。
[常见搭配] support sb. in sth. 在某方面支持某人
provide support for ... 为...提供支持
support oneself by ...靠...养活自己
support against ...支持...反对...
Eg: I will support you in your decision.我会支持你的决定。
The government provides financial support for small businesses.政府为小型企业提供财政支持。
She supports herself by writing novels.她靠写小说养活自己。
We should support the weak against the strong.我们应该支持弱者对抗强者。
[派生词] supporter为名词，译为“支持者”。
Eg: He is a vigorous supporter of human rights. 他是一个积极拥护人权运动的人。
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