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必学英语单词
英语作为全球通用语言，是世界上最重要的语言之一。
学好英语，掌握常用的英语单词是入门的必要条件。
下面将介绍一些必学的英语单词。
1. Hello：你好
Hello是英语中最常用的问候语，表示问候和打招呼。
在英语交流中，Hello是最基本的礼节用语，在职场，学校，旅游等不同场合都需要用到。
掌握hello这个单词，对于初学英语的人来说是很重要的。
2. Thank you：谢谢
Thank you是表达感激之情的最常用语，也是英语中最基本的礼貌用语之一。
在英语交流中，Thank you是非常重要的，表示你的礼貌和尊重。
在和英语国家的人交流时，掌握这个单词可以增加良好的交流氛围。
3. Goodbye：再见
Goodbye是表达离别时常用的用语，也是英语中最常用的告别语。
掌握这个单词，可以表达出你在离别时的诚挚祝福，也能够增加与英语国家人民之间的友谊。
4. Yes：是
在英语中，Yes是表示肯定回答的用语，是最常用的肯定回答。
在日常交流中，Yes是非常实用的词汇。
学会使用Yes，可以更好地表达出你的意思和态度。
5. No：不
No是表示否定回答的用语，也是英语中最常用的否定回答。
在日常交流中，No是非常实用的词汇。
掌握这个词汇，可以让你在交流中更加自信和准确。
总之，以上几个英语单词是必学的基础单词，对于初学者来说非常重要。
学会使用这些常用的单词，可以让你在英语交流中更加自信和自如。
当然，除了这些单词之外，还有很多其他的英语单词也是必学的，希望大家可以持续学习，不断提高自己的英语水平。
common的用法与搭配一、什么是"common"，及其基本用法"Common"是一个常用的英语单词，作为形容词，它具有多个含义和用法。
下面将详细介绍一些常见的用法和搭配。
1. 通用的、普遍的"Common"可以表示某物或某事在很多场合中都会出现或适用。
例如：- It is common for people to experience stress in their daily lives. （人们在日常生活中会经历压力是很普遍的现象。
）- In many cultures, it is common to shake hands as a form of greeting. （在许多文化中，握手作为一种问候方式很常见。
）2. 共同的、共有的"Common"还可以表示某物或某事彼此之间存在共享或共同拥有的特点。
例如：- We have a common goal of improving education for all children. （我们有一个共同的目标，那就是改善所有孩子的教育。
）- The two friends found that they had a lot in common. （这两位朋友发现他们之间有许多共同点。
）3. 普通的、平凡的另外，“common”也可以用来描述缺乏特殊、独特之处的事物或人，并暗指其平凡性或普通性。
例如：- He comes from a common background and worked hard to achieve success. （他出身普通，为了取得成功而努力拼搏。
）- The novel tells the story of a common man facing extraordinary challenges. （这本小说讲述了一个普通人面对非凡挑战的故事。
八年下册英语重点单词用法讲解在八年级下册英语学习中，有很多重要的单词需要我们掌握和熟练运用。
下面将详细介绍其中一部分单词的用法。
1. advantage (n.) - 优势、好处例句：One advantage of living in a big city is that there are many job opportunities.用法解析：advantage 是一个名词，表示某种对自己有利或有益的事物或条件。
也可以用于表达某人的优点或长处。
例如：She has the advantage of being able to speak multiple languages.2. analysis (n.) - 分析例句：The data needs further analysis before we can come to any conclusions.用法解析：analysis 是一个名词，表示对某个问题或事物进行详细的研究和分析。
常见搭配有 perform/ conduct/ carry out an analysis。
3. behavior (n.) - 行为、举止例句：His rude behavior was not appreciated by the teacher.用法解析：behavior 是一个名词，表示一个人或动物在特定情境下所展现出的行为方式。
可以用来描述某人的行为或态度。
例如：His behavior towards his colleagues was always polite and respectful.4. competition (n.) - 竞争例句：She won first place in the swimming competition.用法解析：competition 是一个名词，表示不同个体之间为了争取同一目标而进行的竞争。
可以指比赛、竞赛，也可以指商业或市场上的竞争。
最实用的英语单词英语是全球通用的语言之一，无论是在学习、工作还是生活中都有着重要的地位。
而在英语的学习中，最基本的就是掌握一些实用的单词。
下面，本文将对最实用的英语单词进行介绍。
1. Hello/HiHello和Hi都是表示问候的常用单词，可以用在不同的场合中，如见面礼节、打电话、发邮件等。
这两个单词的使用方式简单明了，非常适合初学者使用。
2. Thank youThank you是表示感谢的单词，无论是口语还是书面语中都非常常见。
在日常生活中，可以用来回答别人帮助自己的提问，也可以用来向别人表达感谢之情。
3. SorrySorry是表示道歉的单词，可以用在多种场合中，如在做错事时、在与人发生矛盾时等。
全球通用的单词，是英语中应用频率非常高的单词。
4. GoodbyeGoodbye是表示告别的单词，常常用于结束对话或是离开某个场所时。
这个单词非常实用，因为不管是与陌生人，还是与熟人，离别时这个单词都是必备的。
5. Yes/NoYes和No分别是表示肯定和否定的单词，也是最常用的两个单词之一。
这两个单词用法简单，可以用于回答很多问题，例如是否同意某个提议、是否能接受某些条件等。
6. PleasePlease是表示请求的单词，可以将其加在请求或指示的话语前面，以表达礼貌。
在请求他人帮助或是请求别人做某件事情时，这个单词是必备的。
7. Excuse meExcuse me是表示请求别人注意或是打扰别人的单词。
例如，在过道狭窄的公共场所走路时，你可能需要在与别人擦肩时说“Excuse me”以表示礼貌；或是在找人帮忙时，先用“Excuse me”引起别人的注意。
8. I/Me/MineI、Me和Mine都是表示自己的单词，这些单词使用频率非常高。
在与人交流时，常常需要用到这些单词。
此外，这些单词还可以用来对自己和他人进行概括，如“I am happy”或是“This is mine”。
9. You/YourYou和Your是表示“你”的单词，这些单词同样也是英语中应用频率非常高的单词之一。
let的用法句型一、let的基本意义和用法"Let" 是一个常用的英语单词，多用作动词，表示“许可”、“允许”或“使得”。
它可以在句中担任及物动词或不及物动词的角色，并且具有多种句型和用法。
下面将详细介绍一些常见的 "let" 的用法和对应例句。
二、let作为不及物动词1. 表示“出租”： let sth. (out) - 出租某物- They let their house out to a young couple. (他们把房子租给了一个年轻夫妇。
)2. 表示“放松”或“放任”： let go of sb/sth - 放开某人/某物- She finally let go of her old grudges and forgave him. (她最终摆脱了旧怨恨，原谅了他。
)3. 表示“（使）离开”，多与介词 "of" 搭配使用: let sb out - 让某人出去- The teacher will let us out early today. (老师今天会早点让我们放学。
)4. 表示“容忍”，可与名词、代词或现在分词形式搭配： let sb/sth alone/ be + 名/代/现在分词- Please let me be. (请不要打扰我。
)- She let the children play in the garden all day. (她让孩子们在花园里玩了一整天。
)三、let作为及物动词1. 表示“让某人做某事”： let sb do sth.- My boss lets me leave early on Fridays. (我的老板允许我星期五早走。
)2. 表示“使某物处于某种状态”： let sth + 形容词- He let the water run cold before taking a shower. (他在洗澡前把水放凉。
五十英文单词引言英语是世界上最为广泛使用的语言之一，拥有大量词汇。
在学习英语的过程中，积累足够的单词量对于提高语言水平至关重要。
本文将介绍五十个常用的英文单词，并通过分类、释义和例句等方式详细探讨它们的用法和意义。
名词1. Book•释义：书籍•例句：I love reading books in my free time.2. Car•释义：汽车•例句：He drives a red car to work every day.3. Dog•释义：狗•例句：She has a cute dog named Max.4. House•释义：房屋•例句：They live in a small house near the lake.5. Tree•释义：树•例句：I like sitting under a tree and reading a book.动词6. Eat•释义：吃•例句：They like to eat pizza for dinner.7. Run•释义：跑•例句：She runs every morning to keep fit.8. Sleep•释义：睡觉•例句：I usually sleep for eight hours every night.9. Study•释义：学习•例句：He studies English for two hours every day.10. Work•释义：工作•例句：They work in a big company in the city.形容词11. Big•释义：大的•例句：The elephant is a big animal.12. Small•释义：小的•例句：She has a small backpack for traveling.13. Happy•释义：快乐的•例句：They were happy to see each other again.14. Sad•释义：伤心的•例句：He felt sad after hearing the bad news.15. Beautiful•释义：美丽的•例句：The sunset over the ocean was a beautiful sight.副词16. Always•释义：总是•例句：She always arrives early for the meeting.17. Never•释义：从不•例句：He never forgets to say thank you.18. Often•释义：常常•例句：They often go hiking on the weekends.19. Sometimes•释义：有时候•例句：I sometimes eat ice cream as a treat.20. Very•释义：非常•例句：The movie was very exciting and suspenseful.介词21. In•释义：在…里面•例句：She put her keys in the drawer.22. On•释义：在…上面•例句：He placed the book on the table.23. At•释义：在…处•例句：They met at the park for a picnic.24. From•释义：从…来•例句：The package is from my friend who lives in another country.25. To•释义：到…去•例句：We are going to the beach next weekend.数词26. One•释义：一个•例句：He has one sister and two brothers.27. Two•释义：两个•例句：I bought two tickets for the concert.28. Three•释义：三个•例句：She has three cats as pets.29. Four•释义：四个•例句：They bought four apples at the market.30. Five•释义：五个•例句：He needs five minutes to get ready.代词31. I•释义：我•例句：I like to drink coffee in the morning.32. You•释义：你•例句：Do you want to go to the movies with me?33. He•释义：他•例句：He is my best friend.34. She•释义：她•例句：She is a talented artist.35. They•释义：他们/她们•例句：They are going on a vacation together.连词36. And•释义：和•例句：I like to drink tea and eat cookies.37. But•释义：但是•例句：He likes to travel, but he doesn’t have much free time.38. Or•释义：或者•例句：Do you want coffee or tea?39. Because•释义：因为•例句：They couldn’t go to the party because they were busy.40. If•释义：如果•例句：If it rains, we will stay home.状态词41. Good•释义：好的•例句：She is a good student and always gets excellent grades.42. Bad•释义：坏的•例句：He had a bad day at work.43. Better•释义：更好的•例句：She felt better after taking some medicine.44. Best•释义：最好的•例句：He won the award for the best performance.45. Difficult•释义：困难的•例句：The math problem was very difficult to solve.时间词46. Year•释义：年•例句：They got married last year.47. Month•释义：月•例句：She is going on a vacation next month.48. Week•释义：周•例句：I have a meeting at the end of the week.49. Day•释义：天•例句：He goes for a walk every day.50. Hour•释义：小时•例句：She studied for three hours for the exam.总结本文介绍了五十个常用的英文单词，包括名词、动词、形容词、副词、介词、数词、代词、连词、状态词和时间词等各个词类。
七年级下册英语重点单词用法归纳在七年级下册的英语学习中，我们遇到了很多重要的单词。
这些单词在我们日常生活和英语学习中都非常常见，并且需要掌握它们的正确用法。
以下是对这些重点单词用法的详细介绍。
1. Interesting (有趣的)"Interesting" 是一个形容词，用来描述让人感兴趣或有趣的事物。
例如：“The book is very interesting.”（这本书非常有趣）。
注意：当 "interesting" 修饰人时，需要使用介词 "to"。
例如：“She is interesting to talk to.”（和她聊天很有意思）。
2. Exciting (令人兴奋的)"Exciting" 是一个形容词，用来描述令人兴奋的事物。
例如：“Watching a basketball game is exciting.”（看篮球比赛很兴奋）。
3. Difficult (困难的)"Difficult" 是一个形容词，用来描述困难的事物。
例如：“Math is difficult for me.”（对我来说数学很难）。
4. Easy (容易的)"Easy" 是一个形容词，用来描述容易的事物。
例如：“This homework is easy.”（这个作业很容易）。
5. Boring (无聊的)"Boring" 是一个形容词，用来描述无聊的事物。
例如：“The movie was boring.”（这部电影很无聊）。
6. Beautiful (美丽的)"Beautiful" 是一个形容词，用来描述美丽的事物。
例如：“She is wearing a beautiful dress.”（她穿着一件漂亮的连衣裙）。
7. Interesting (有趣的)"Interesting" 是一个形容词，用来描述令人感兴趣的事物。
1.individuals,characters, folks替换(people ,persons)2: positive, favorable, rosy (美好的)，promising (有希望的)，perfect, pleasurable , excellent, outstanding, superior替换good3:dreadful, unfavorable, poor, adverse, ill (有害的)替换bad如果bad做表语，可以有be less impressive替换eg.An army of college students indulge themselves in playing games, enjoying romance withgirls/boys or killing time passively in their dorms. When it approaches to graduation ,as a result, they find their academic records are less impressive.4.(an army of, an ocean of, a sea of, a multitude of ,a host of, many, if not most)替换many. 注：用many, if not most 一定要小心，many后一定要有词。
Eg. Many individuals, if not most, harbor the idea that….同理用most, if not all ,替换most. 5: a slice of, quiet a few , several替换some6:harbor the idea that, take the attitude that, hold the view that, it is widely shared that, it is universally acknowledged that)替think (因为是书面语，所以要加that)7:affair ,business ,matter 替换thing8: shared 代 common9.reap huge fruits 替换get many benefits )10:for my part ,from my own perspective 替换 in my opinion11:Increasing(ly),growing 替换more and more( 注意没有growingly这种形式。
高中英语常见20组词汇、词义及用法辨析高中英语常见20组词汇、词义及用法辨析到濮阳：在做英语试题的时候，你是否经常遇到这样的情况：几个选项，词义意思相近，似乎选哪一组都是正确的，让你很是纠结，无所适从。
今天小编就给同学们整理高中阶段常见的二十组词义相近的单词用法辨析，解决困扰你的问题!1.accuse / chargeuse 和charge都有“指责，控告”之意，有时可通用，但结构不一样。
accuse不一定针对重大过失或罪行，其结构为accuse sb of sth。
而charge一般用于重大过失或罪行，其结构为charge sb with sth，此结构还有“使某人负有……责任”之意。
例如：例1：My father accused me of my being too careless. (父亲责备我太粗心。
)例2：He accused me of neglecting my duty. (他指控我玩忽职守。
)例3：He charged me with neglecting my duty. (同上)例4：Jimmy was charged with murder. (吉米被控谋杀。
)例5：He was charged with an important task. (他担负有一项重要任务。
)2.add / add to / add up / add up toadd：增加，把……加上。
add…to…：把……加到。
例如：例6：At the end of the party, we added another program.例7：You n eedn’t add any water to the medicine.add to：增添。
指增添喜悦、悲伤、麻烦等。
例如：例8：His coming added to our trouble. (他的到来给我们添了麻烦。
)add up：加起来。
例如：例9：Have you added up all the numbers?add up to：总计。
八年级下册英语单词重点及其用法下面是八年级下册英语单词重点及其用法的详细介绍：1. defend- 词性：动词- 释义：保护，捍卫- 例句：We must defend our rights and freedoms.2. civilization- 词性：名词- 释义：文明- 例句：The ancient Egyptians made significant contributions to the development of human civilization.3. ancient- 词性：形容词- 释义：古代的- 例句：The Great Wall is an ancient structure that has stood for centuries.4. tradition- 词性：名词- 释义：传统- 例句：Celebrating Chinese New Year is a tradition in many Asian cultures.5. independent- 词性：形容词- 释义：独立的- 例句：My parents want me to become independent and take care of myself.6. victory- 词性：名词- 释义：胜利- 例句：The team celebrated their victory with cheers and applause.7. emperor- 词性：名词- 释义：皇帝- 例句：During ancient times, emperors ruled over vast empires.8. generation- 词性：名词- 释义：一代人- 例句：Each generation has its own unique experiences and challenges.9. global- 词性：形容词- 释义：全球的- 例句：Climate change is a global issue that affects every country.10. democracy- 词性：名词- 释义： **- 例句：In a democracy, the people have the power to elect their leaders.11. wealth- 词性：名词- 释义：财富- 例句：Some people believe that wealth is a measure of success, while others value happiness and fulfillment more.12. agriculture- 词性：名词- 释义：农业- 例句：Many countries heavily rely on agriculture for both food production and economic growth.13. pollution- 词性：名词- 释义：污染- 例句：Air pollution from factories and vehicles is a major environmental issue.14. entertainment- 词性：名词- 释义：娱乐- 例句：There are many forms of entertainment, such as movies, music, and sports.15. poverty- 词性：名词- 释义：贫困- 例句：The government has implemented various programs to reduce poverty in the country.16. technology- 词性：名词- 释义：技术- 例句：The rapid advancement of technology has greatly impacted our daily lives.17. environment- 词性：名词- 释义：环境- 例句：We should all do our part to protect the environment for future generations.18. advantage- 词性：名词- 释义：优势- 例句：Having a good education gives you an advantage in the job market.19. construct- 词性：动词- 释义：建造- 例句：The team worked together to construct a new building in record time.20. significant- 词性：形容词- 释义：重要的- 例句：His discovery made a significant contribution to the field of science.21. generation gap- 词性：短语- 释义：代沟- 例句：There is often a generation gap between parents and their children due to differences in values and experiences.22. global warming- 词性：短语- 释义：全球变暖- 例句：Global warming is causing the polar ice caps to melt at an alarming rate.23. poverty line- 词性：短语- 释义：贫困线- 例句：The government has set a poverty line to determine who is eligible for social assistance programs.24. advanced technology- 词性：短语- 释义：先进技术- 例句：With the development of advanced technology, we can now communicate with people from all over the world in an instant.25. natural environment- 词性：短语- 释义：自然环境- 例句：The destruction of the natural environment is a growing concern for many environmentalists.26. sustainable- 词性：形容词- 释义：可持续的- 例句：Developing renewable energy sources is crucial for achieving sustainable development.27. entrepreneur- 词性：名词- 释义：企业家- 例句：An entrepreneur is someone who starts their own business and takes risks to make a profit.28. innovation- 词性：名词- 释义：创新- 例句：Innovation is key to the success of any business or organization.29. diversity- 词性：名词- 释义：多样性- 例句：Cultural diversity can enrich a community by bringing together different ideas and traditions.30. economy- 词性：名词- 释义：经济- 例句：The economy of a country depends on its ability to produce goods and services efficiently.31. education- 词性：名词- 释义：教育- 例句：Education is the foundation for personal and societal development. 32. health- 词性：名词- 释义：健康- 例句：Regular exercise and a balanced diet are essential for maintaining good health.33. communication- 词性：名词- 释义：沟通- 例句：Good communication skills are important in both personal and professional relationships.34. cooperation- 词性：名词- 释义：合作- 例句：International cooperation is necessary to address global issues like climate change.35. leadership- 词性：名词- 释义：领导力- 例句：Good leadership is crucial for guiding a team or organization towards its goals.36. conflict- 词性：名词- 释义：冲突- 例句：Conflict can arise when people have different opinions or goals.37. resolution- 词性：名词- 释义：解决- 例句：The resolution of a conflict often requires compromise and understanding.38. environmental protection- 词性：短语- 释义：环境保护- 例句：Environmental protection is a global priority that requires immediate action.39. renewable energy- 词性：短语- 释义：可再生能源- 例句：Renewable energy sources like solar and wind power are essential for a sustainable future.40. economic growth- 词性：短语- 释义：经济增长- 例句：Economic growth should be balanced with social and environmental considerations.41. educational system- 词性：短语- 释义：教育系统- 例句：The educational system plays a significant role in shaping the future of a country.42. public health- 词性：短语- 释义：公共卫生- 例句：Access to clean water and sanitation is crucial for public health. 43. globalization- 词性：名词- 释义：全球化- 例句：Globalization has brought both benefits and challenges to societies around the world.44. cultural exchange- 词性：短语- 释义：文化交流- 例句：Cultural exchanges can help to promote understanding and tolerance between different groups.45. scientific research- 词性：短语- 释义：科学研究- 例句：Scientific research is essential for driving technological advancements and solving complex problems.46. technological advancement- 词性：短语- 释义：技术进步- 例句：Technological advancement has revolutionized the way we live, work, and communicate.47. public policy- 词性：名词- 释义：公共政策- 例句：Public policy aims to address societal challenges and improve the well-being of citizens.48. social justice- 词性：名词- 释义：社会公正- 例句：Fighting for social justice involves advocating for equal rights and opportunities for all.49. human rights- 词性：名词- 释义：人权- 例句：Every individual should have access to basic human rights, such as freedom of expression and education.50. environmental sustainability- 词性：短语- 释义：环境可持续性- 例句：Environmental sustainability requires us to balance economic development with the protection of natural resources.总结：八年级下册英语单词重点及其用法涵盖了多个语法形式，如名词、形容词和动词。
常用单词用法1.劝告advise caution warn admonish counsel advise: 普通用词，vet/vi,泛指劝告，不涉及对方是否听从劝告。
用法：及物动词advise+ thatWe advised her that she (should) wait.我们劝她等。
Advise sb against doing sth/ sth 劝某人不做某事We advised him against acting in haste.我们劝他不要匆忙行事。
不及物动词advise againstI advised against their doing it.我劝他们不要做这件事。
名词：（不可数）advice劝告, 忠告, 意见；消息, 报道; (商业)通知Give advice 提供建议，劝告take advice 接受建议，劝告caution : 主要指针对有潜在危险而提出的警告，含小心从事的意味。
及物动词&不及物动词警告,告诫,使小心[(+about/against/for)]caution oneself against error谨防有误The policeman cautioned me for parking here.警察警告我不可在此停车。
名词：（不可数）小心, 谨慎, 慎重, 警告Caution is the parent of safety.小心驶得万年船。
warn: 含义caution 同，但语气较重，尤指重后果。
及物动词/不及物动词1.警告;告诫;提醒[(+of/against/about)]He warned me against going outside alone at night.他提醒我晚上不要单独出去。
The police warned us not to go out at night.警察告诫我们夜间不要出门。
They warned him of/about the danger.他们警告他有危险。
2.预先通知[(+of)The weather station warned that a hurricane was coming.气象台预报飓风即将来临。
admonish: 一般指年长者或领导对已犯错误的或有过失的人提出的忠告或警告以避免类似错误。
及物动词劝告, 训诫；(温和地)责备，轻责Admonish your friends in private, praise them in public.明赞朋，暗谏友。
Mr. Green admonished me for drinking too much.格林先生警告我喝酒太多了。
counsel: 正式用词，语气比advise强一些，侧重指对重要问题提出的劝告、建议或咨询。
及物动词劝告,忠告;提议[(+on)][O2]His job is to counsel students on how to choose a career.他的工作是辅导学生就业。
名词忠告, 劝告；辩护律师, 法律顾问；商议,审议Give counsel 提供咨询take counsel with sb 征求某人意见2.保护defend protect safeguard guard shield shelter harbor defend: 普通用词，指用武力或其它措施使人或物不受损害，消除危险。
用作比喻时，指坚持某种行动、决定或意见。
及物动词&不及物动词防御;保卫;保护We shall defend our city, whatever the cost may be.不管代价如何,我们要捍卫我们的城市。
compel sb. to defend himself迫使进行自卫defend the honor of one's country维护国家的声誉Defend with采取…手段保卫【律】为...辩护;作...的辩护律师She defended herself successfully in court.她在法庭上成功地为自己作了辩护。
protect: 普通用词，指用某种手段作为防御工具以防危险或伤害。
及物动词保护,防护[(+against/from)]May God protect you from harm.愿上帝保佑你免受伤害。
Wearing dark glasses can protect your eyes from the sun.戴墨镜可以保护眼睛不受阳光刺激。
protect intellectual property保护知识产权safeguard: 语气强，指采取积极措施预防可能发生的一切攻击或危。
及物动词保护;防卫[(+from)]This agreement will safeguard the newspapers from government interference. 这一协议将保护报纸不受政府干涉。
为...提供防护措施Insurance will safeguard your property.保险会使你的财产得到保障。
safeguard lawful rights and interests维护合法权益名词可数名词保护;防卫;预防措施;保证条款[(+against)]The new law constitutes a safeguard against the abuse of government power.新法律可以防止滥用政府权力。
guard: 普通用词，指保持警惕以防可能的攻击或伤害。
及物动词&不及物动词[(+against/from)]guard against external aggression防御外来侵略A helmet guards your head against/from injuries.头盔可以保护你的头部免受伤害。
名词（可数）警戒, 警惕, 守卫；卫兵；防护装置shield: 语气比protect强，但侧重防止迫在眉睫的攻击或伤害。
及物动词保护;保卫[(+from)]Her hat shielded her eyes from the sun.她的帽子遮住太阳光保护她的眼睛。
庇护;包庇;掩盖He lied to the court to shield his friend.他对法庭说谎以包庇自己的朋友。
挡开,避开[(+off)]These trees will shield off arid winds名词（可数）盾, 盾牌；护罩; 防护物Dark glasses are an effective shield against the glare.墨镜能有效地遮挡强光。
shelter : 通常指寻找安全地方躲避风雨或使人免遭危害。
及物动词(使)掩蔽,遮蔽;庇护;保护[(+from)]The wall sheltered us from the wind.墙壁遮挡着,使我们免遭风吹。
She was accused of sheltering a murderer.她被指控隐匿凶手。
不及物动词躲避;避难[Q][(+from)]They sheltered from the sun under a tree.名词遮盖物;躲避处;避难所[可数][(+from)]The umbrella is a poor shelter from heavy rain.雨伞不太遮挡得住大雨。
掩蔽,遮蔽;庇护,保护;避难[不可数[(+from)]Their immediate need is for food, clothing and shelter.他们所急需的是吃的,穿的和住的。
harbor: 贬义词，指隐匿或非法保护、窝藏。
及物动词庇护;藏匿;收养(动物等)He is accused of harboring an escaped convict.他被指控窝藏逃犯。
心怀,怀有He still harbors a grudge against me.他对我仍怀有怨恨。
不及物动词(船)入港停泊；躲入安全地;躲藏;居住;生存Crabs harbor in holes.蟹躲藏在洞里。
名词（可数&不可数）3. “结束，完成”complete finish end close conclude terminate accomplish complete: 侧重指完成预定的任务或使某事完善，补足缺少的部分等。
及物动词使齐全;使完整Complete the sentences in the exercise by filling in the blanks.在空白处填充使练习中各句成为完整句。
完成;结束By the end of August we had completed the work.我们到八月底就完成了这项工作。
形容词完整的;全部的；完全的,彻底的finish: 与complete基本同义，着重圆满地结束或完成已着手的事。
及物动词&不及物动词结束，完成；用完;吃完We'll never finish if we go on at this rate.以这样的速度, 我们永远也完不成。
Finish off your food.吃干净吧。
名词结束, 完成, 最后阶段end: 最普通用词，着重事情的完成。
也指某种活动因达到目的而自然结束或由于某种原因而突然中止。
及物动词&不及物动词终止，结束The strike was ended.罢工已经结束。
名词最后部分，结尾，死去close: 普通用词，着重行为的终止或结束，不强调其目的。
及物动词&不及物动词关闭，终止；结束;结清(帐目);商定(交易)The company has decided to close down its three branches in Europe.该公司已决定关闭它在欧洲的三个分公司。
I have closed my account at that bank.我已结清了我在该银行的帐户。
形容词亲近的，关系密切的；势均力敌的；接近的Close relationship密切的关系Close to danger濒临险境名词终点，结束conclude : 正式用词，多指以某事或活动达到预期目的而告终。
及物动词结束[(+by/with)]We concluded our meeting at 9 o'clock.我们九点钟结束了会议。
推断出,断定[W][Y][+that]From his appearance we may safely conclude that he is a chain smoker.从他的外表，我们可以有把握地断定他烟抽得很凶。
