(1) Waste much money (浪费大量金钱)

(1) Smoking wastes much money. (吸烟浪费很多钱。)

(2) Spend a large sum of money on sth./doing sth. (在某事上/做某事上花费一大笔钱)

(2) Smokers have to spend a large sum of money on smoking. (烟民不得不花费一大笔钱在吸烟上。)

(3) Lay a heavy/great financial burden on (给...施加沉重/巨大的经济负担)

(3) Studying abroad lays a heavy financial burden on the students' families. (出国留学给学生的家庭施加了沉重的经济负担。)

(1) Save a lot of money (节省大量金钱)

(1) Setting criminals free from prison saves a lot of money. (释放囚犯可以节省大量资金。)

(2) Release the financial burden of (减轻...的经济负担)

(2) Part-time work of students releases the financial burden of their parents. (学生的兼职工作减轻了他们父母的经济负担。)

(3) Contribute much to the government's revenue (对政府收入有很大贡献)

(3) The tobacco industry contributes much to the government's revenue. (烟草行业对政府收入有很大贡献。)

(4) Create economic profits (创造经济效益)

(4) Traditional arts can create economic profits. (传统艺术可以创造经济效益。)

(1) Be harmful/detrimental to/for one's physical health (对某人的身体健康有害/不利)

(1) Smoking is harmful to people's health. (吸烟对人们的健康有害。)

(2) Lead to serious diseases such as heart disease and lung cancer (导致诸如心脏病和肺癌等严重疾病)

(2) Smoking can lead to serious diseases such as heart disease and lung cancer. (吸烟可以导致诸如心脏病和肺癌等严重疾病。)

(3) Lead to death (导致死亡)

(3) Smoking can lead to people's death. (吸烟可以导致人们的死亡。)

(4) Do harm to one's eyes (对某人的眼睛造成伤害)

(4) Surfing the Internet does great harm to students' eyes. (上网对学生的眼睛造成很大的伤害。)

(5) Result in near-sightedness (导致近视)

(5) Surfing the Internet results in near-sightedness. (上网导致近视。)

(6) Ignore/neglect outdoor activities (忽视/忽略户外活动)

(6) Students spend too much time on the Internet, ignoring outdoor activities. (学生们花太多时间在网上，忽视了户外活动。)

Physical exercise is beneficial to people's health. (体育锻炼对人们的健康有益。)

(1) Be harmful/detrimental to/for one's psychological/mental health (对某人的心理/精神健康有害/不利)

(1) Surfing the Internet is harmful to people's psychological/mental health. (上网对人们的心理/精神健康有害。)

(2) Suffer from great pressure (承受巨大压力)

(2) Students have to suffer from great pressure. (学生们不得不承受巨大的压力。)

(3) Suffer from psychological problems such as loneliness and isolation (遭受诸如孤独和孤立等心理问题)

(3) Students suffer from psychological problems such as loneliness and isolation. (学生们遭受诸如孤独和孤立等心理问题。)

(4) Tend to be lonely and isolated (倾向于感到孤独和被孤立)

(4) An Internet-addicted person tends to be lonely and isolated. (网络成瘾者倾向于感到孤独和被孤立。)

(5) Lead to psychological problems such as loneliness and isolation (导致诸如孤独和孤立等心理问题)

(5) The Internet can easily lead to psychological problems such as loneliness and isolation. (互联网很容易导致诸如孤独和孤立等心理问题。)

(6) There are violent and obscene items available (存在暴力和色情内容)

(6) There are a lot of violent and obscene items on the Internet. (互联网上有许多暴力和色情内容。)

(1) Be beneficial/conducive to/for one's psychological/mental health (对某人的心理/精神健康有益/促进)

(1) Sending children to the kindergarten is beneficial to their psychological health. (送孩子去幼儿园对他们的心理健康有益。)

(2) Help one to cultivate independence / help to cultivate one's independence (帮助某人培养独立性)

(2) Study abroad helps students to cultivate their independence. (出国留学帮助学生培养他们的独立性。)

(1) It is fair/reasonable to do sth. (做某事是公平/合理的)

(1) It is fair to require students to pay for the tuition fees. (要求学生支付学费是公平的。)

(2) It is a fair/reasonable practice to do sth. (做某事是一种公平/合理的做法)

(2) It is a reasonable practice to require students to pay for the tuition fees. (要求学生支付学费是一种合理的规定。)

(3) It is fair/reasonable that (……是公平/合理的)

(3) It is fair that students are required to pay for the tuition fees. (要求学生支付学费是公平的。)

(4) It is a fair/reasonable practice that (……是一种公平/合理的做法)

(4) It is a fair practice that students are required to pay for the tuition fees. (要求学生支付学费是一种公平的做法。)

(5) It is one's duty/responsibility/obligation to do sth. (某人有责任/义务去做某事)

(5) It is students' responsibility and obligation to pay their tuition fees. (支付学费是学生的责任和义务。)

(6) Sb. have/has the duty/responsibility/obligation to do sth. (某人有责任/义务去做某事)

(6) Students have the responsibility and obligation to pay their tuition fees. (学生们有责任和义务支付他们的学费。)

(1) It is unfair/unreasonable to do sth. (做某事是不公平/不合理的)

(1) It is unfair to use animals in medical experiments. (用动物进行医学实验是不公平的。)

(2) It is an unfair/unreasonable practice to do sth. (做某事是一种不公平/不合理的做法)

(2) It is an unfair practice to use animals in medical experiments. (用动物进行医学实验是一种不公平的做法。)

(3) It is unfair/unreasonable that (……是不公平/不合理的)

(3) It is unreasonable that animals are used in medical experiments. (在医学实验中使用动物是不合理的。)

(4) It is an unfair/unreasonable practice that (……是一种不公平/不合理的做法)

(4) It is an unreasonable practice that animals are used in medical experiments. (在医学实验中使用动物是一种不合理的做法。)

(5) Violate one's rights and freedom (侵犯某人的权利和自由)

(5) The ban of smoking violates the rights and freedom of smokers. (禁烟令侵犯了吸烟者的权利和自由。)

(6) Be the violation of one's rights and freedom (是对某人权利和自由的侵犯)

(6) Animal testing is the violation of the rights and freedom of animals. (动物实验是对动物权利和自由的侵犯。)

(1) Save much time (节省大量时间)

(1) Internet saves much time. (互联网节省了很多时间。)

(2) Bring sb. great convenience and efficiency (给某人带来极大的便利和效率)

(2) Internet brings us great convenience and efficiency. (互联网给我们带来了极大的便利和效率。)

(3) It is a convenient and efficient way to do sth. (做某事是一种便捷而高效的方法)

(3) It is a convenient and efficient way to use the Internet to get the information that we need. (用互联网获取我们需要的信息是一种便捷而高效的方法。)

(1) Waste a lot of time (浪费大量时间)

(1) Internet wastes a lot of time. (互联网浪费了很多时间。)

(2) Spend too much time on sth., ignoring sth. (花太多时间在某事上，忽视其他事情)

(2) Students spend too much time on the Internet, ignoring their studies. (学生们花太多时间在网上，忽视了学习。)

(3) Bring sb. a lot of inconvenience (给某人带来很多不便)

(3) Internet brings us a lot of inconvenience. (互联网给我们带来了很多不便。)

(1) Bring sb. a lot of entertainments (给某人带来很多娱乐)

(1) Internet brings us a lot of entertainments. (互联网给我们带来了许多娱乐。)

(2) Enrich our cultural life (丰富我们的文化生活)

(2) Television enriches our cultural life. (电视丰富了我们的文化生活。)

(3) Make our life colorful (使我们的生活多姿多彩)

(3) Television makes our life colorful. (电视使我们的生活多姿多彩。)

(4) Without [specific item], our life would be dull and monotonous (没有[具体事物]，我们的生活将变得单调乏味)

(4) Without television, our life would be dull and monotonous. (没有电视，我们的生活将变得单调乏味。)

(1) Play an educational role in our daily life (在我们的日常生活中发挥教育作用)

(1) Internet plays an educational role in our daily life. (互联网在我们的日常生活中发挥教育作用。)

(2) Provide us with much useful information (为我们提供大量有用的信息)

(2) Internet provides us with much useful information. (互联网为我们提供了大量有用的信息。)

(3) Broaden one's vision (拓宽某人的视野)

(3) Internet broadens one's vision. (互联网拓宽了人们的视野。)

(4) Spread education to all corners of the world (将教育传播到世界的每个角落)

(4) Internet spreads education to all corners of the world. (互联网将教育传播到世界的每个角落。)

(5) Widen one's scope of knowledge (扩大某人的知识范围)

(5) Internet widens our scope of knowledge. (互联网扩大了我们的知识范围。)

(6) Enrich one's knowledge and experience (丰富某人的知识和经验)

(6) Internet enriches our knowledge and experience. (互联网丰富了我们的知识和经验。)

(1) Ensure/Guarantee one's safety (确保/保证某人的安全)

(1) Sending criminals to prison can ensure the safety of citizens. (将罪犯送入监狱可以确保公民的安全。)

(2) Ensure/Guarantee a safe environment (确保/保证一个安全的环境)

(2) Sending criminals to prison can ensure a safe living environment for citizens. (将罪犯送入监狱可以为公民确保一个安全的生活环境。)

(3) Provide us with a safe environment (为我们提供一个安全的环境)

(3) Sending criminals to prison provides us with a safe living environment. (将罪犯送入监狱为我们提供了一个安全的生活环境。)

(1) It will be dangerous for us = We will be in danger (对我们来说将是危险的 = 我们将处于危险之中)

(1) Setting criminals free will be dangerous for us. We will be in danger if criminals are set free. (释放罪犯对我们来说将是危险的。如果罪犯被释放，我们将处于危险之中。)

(2) Pose a threat to sb./sth. (对某人/某事物构成威胁)

(2) Criminals will pose a threat to society. (罪犯将对社会构成威胁。)

(3) Face risks (面临风险)

(3) If the elderly are at home, they may face some risks. (如果老年人独自在家，他们可能会面临一些风险。)

(1) It is useful/effective to do sth. (做某事是有用/有效的)

(1) It is useful and effective to use examinations to select candidates. (使用考试来选拔候选人是有用且有效的。)

(2) Be useful/effective (是有用/有效的)

(2) Animal experiments are useful and effective. (动物实验是有用且有效的。)

(1) It is useless/ineffective/unreliable/infeasible to do sth. (做某事是无用/无效/不可靠/不可行的)

(1) It is useless and ineffective to use animals to do medical experiments. (使用动物进行医学实验是无用且无效的。)

(2) Be useless/ineffective (是无用/无效的)

(2) Some animal experiments are useless and ineffective. (一些动物实验是无用且无效的。)

(1) It is necessary to do sth. (有必要做某事)

(1) It is necessary to use animals to do medical experiments. (有必要使用动物进行医学实验。)

(2) Be necessary (是必要的)

(2) Animal experiments are necessary. (动物实验是必要的。)

(3) Up to now, we have not found/discovered other methods which can replace [specific practice] (到目前为止，我们尚未找到/发现可以替代[具体做法]的其他方法)

(3) Up to now, we have not found other methods which can replace animal experiments. (到目前为止，我们尚未找到可以替代动物实验的其他方法。)

(4) Up to now, we have not found/discovered other methods to replace [specific practice] (到目前为止，我们尚未找到/发现替代[具体做法]的其他方法)

(4) Up to now, we have not discovered other methods to replace animal experiments. (到目前为止，我们尚未发现替代动物实验的其他方法。)

(5) Up to now, no other method has been found/discovered to replace [specific practice] (到目前为止，尚未找到/发现可以替代[具体做法]的其他方法)

(5) Up to now, no other method has been discovered to replace animal experiments. (到目前为止，尚未发现可以替代动物实验的其他方法。)

(6) Up to now, no other methods are available. (到目前为止，没有其他可用的方法。)

(6) Up to now, no other methods are available. (到目前为止，没有其他可用的方法。)

(1) It is unnecessary to do sth. (没有必要做某事)

(1) It is unnecessary to use animals to do medical experiments. (没有必要使用动物进行医学实验。)

(2) Be unnecessary (是没有必要的)

(2) Some animal experiments are unnecessary. (一些动物实验是没有必要的。)

(3) We have found/discovered other methods to replace [specific practice] (我们已经找到/发现了可以替代[具体做法]的其他方法)

(3) We have found other methods to replace animal experiments. (我们已经找到了可以替代动物实验的其他方法。)

(4) We have found/discovered other methods which can replace [specific practice] (我们已经找到/发现了可以替代[具体做法]的其他方法)

(4) We have found other methods which can replace animal experiments. (我们已经找到了可以替代动物实验的其他方法。)

(5) There are other methods which can replace [specific practice] (有其他方法可以替代[具体做法])

(5) There are other methods which can replace animal testing. (有其他方法可以替代动物测试。)