Unit 1 Period 4 课时学案 单元语法讲练(Learning About Language)-【名师导航】2025-2026学年高中英语选择性必修第二册教师用书配套课件（人教版）

该高中英语课件聚焦表语从句语法讲练，以“美文诵读”中的真实语境例句导入，引导学生通过语法体悟归纳引导词类型，再结合单元主题“科学家”进行语法精讲，涵盖that、whether等引导词及注意事项，辅以即时训练和提升作业构建学习支架。 其亮点在于语法教学与单元主题深度融合，通过科学家传记阅读材料创设语境，培养学生语言能力，对比分析why与because的用法差异训练思维品质，分层练习设计提升学习能力。学生能在真实语料中掌握语法，教师可高效实施讲练结合教学。

UNIT 1　 SCIENCE AND SCIENTISTS 主题语境 人与社会——对社会有突出贡献的人物 Period 4　课时学案 单元语法讲练(Learning About Language) 美文诵读 　　I'm writing to inform you of the good news，which is ①that our school will go camping．But the question is ②when we should set off．My suggestion is ③that we should go to the valley nearby this weekend．The reason is ④that the traffic is convenient and ⑤that there are many famous places of interest．What I want to know is ⑥whether you are willing to join us． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 语法体悟 ①、③、④、⑤为that引导的表语从句。that引导表语从句时，在从句中不作成分，无意义，不可省略； ②为when引导的表语从句，意为“什么时候”，在从句中作时间状语； ⑥为whether引导的表语从句，意为“是否”。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 一、概念 在主从复合句中充当表语的从句叫作表语从句。它常位于系动词之后，用来说明主语的身份或特征。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 二、表语从句的引导词 1．that引导表语从句，在句中无意义，不充当句子成分，不可省略。 The problem may be that，in our offices，we can't stop ourselves from getting drawn into others' conversations while we're trying to focus． 问题可能是，在我们的办公室里，当我们试图集中注意力时，我们无法阻止自己卷入别人的谈话中。 The trouble is that we haven't found enough proof to prove him to be guilty． 麻烦的是我们还没有找到足够的证据来证明他有罪。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 2．whether引导表语从句，不充当句子成分，意为“是否”。 The question is whether your parents will subscribe to your plan to travel to Shanghai this summer holiday． 问题是你的父母是否同意你这个暑假去上海旅行的计划。 3．连接代词who/whom/whose/what/which引导表语从句，在从句中作主语、宾语、表语或定语。 The question is which book we should read first． 问题是我们应该先读哪一本书。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 4．连接副词引导表语从句 Rome can be pricey for travellers，which is why many choose to stay in a hostel． 罗马对于游客来说费用高昂，这就是很多人选择住旅社的原因。 What is the most important is how we can balance exercise and study． 最为重要的是我们该如何平衡锻炼和学习。 “As you can see，Mark treasured it very much，”he added．That was when I cried． “正如你所看到的，马克很珍惜它。”他补充道。就在那时我哭了。 That's where the famous astronomer disagreed． 那就是这个著名的天文学家不同意的地方。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 5．because，as if/as though等引导表语从句 That's because you don't know how to handle this kind of crisis． 那是因为你不知道如何应对这类危机。 Look at the sky! It looks as if it is going to rain． 看看天空！看起来好像要下雨了。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 三、注意事项 1．why和because引导的表语从句的区别。两者都可引导表语从句，前者强调结果，常构成that's why...句式，意为“那是……的原因”；后者强调原因，常构成that's because...句式，意为“那是因为……”。 I didn't phone her，and that's why she got angry with me． 我没有给她打电话，那就是她生我的气的原因。(强调生气这一结果) I didn't phone her，and that's because I got angry with her． 我没有给她打电话，那是因为我生她的气了。(强调没打电话的原因) 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 2．reason作主语或主语中包含事件的起因时，后面的表语从句表示原因时，要用that来引导，而不是because。 The reason why the injection needs repeating every year is that the virus changes． 每年需要重复注射的原因是该病毒会发生变化。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 3．在表语从句中，主句中的主语为order、request、advice、suggestion、proposal、idea等表示间接的命令、要求、请求、建议、决定等意义的名词时，表语从句要使用虚拟语气，即谓语动词形式为“should＋动词原形”，其中should可以省略。 My suggestion is that we (should) start early tomorrow． 我的建议是我们明天一早就出发。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 即时训练 单句语法填空 ①The question is ________ I should go to the cinema with him，or go shopping with her． ②My suggestion is ____ we should start making preparations for the party right now． ③Obviously，that was _____ she did this morning on her way to her office． whether that what 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) ④The reason why he failed the final exam was ____ he hadn't made good use of time． ⑤His suggestion is that another meeting ________________ (hold) to discuss the problem． ⑥That's ____ I strongly recommend it to anyone who loves reading in their daily life． ⑦The reason why he was fired was ____ he was suspected of stealing the computer． that (should) be held why that 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) (建议用时：45分钟　总分：98.5分) Ⅰ．单句语法填空(共10小题；每小题1.5分，满分15分) 1．This is something positive that I can do for them，which is _____ I like most about it． 2．Plants are very important．That is _______ they can make food with the help of air，water and sunlight． 课时提升作业(二)　(UNIT 1　Learning About Language) what because 3．He feels so happy that he followed his heart when choosing what to do with his life，even though it may not be _____ others expected of him． 4．Taking a boat is the only way to get there，which is ____ we arrived． 5．If you are addicted to your mobile phone，that's _____ you should lay it down and be involved in meaningful activities． what how when 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 6．It is generally acknowledged that loving your life is ______ the key to happiness lies． 7．Learning and travelling were exactly _____ helped him in his later career as a historian． 8．His chief concern was ____ he could do his job more effectively and efficiently． where what how 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 9．The difficulty we now meet with is ________ we can persuade him to tell us the truth． 10．My plan is ____ I'll go there once a week． whether that 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Ⅱ．完成句子(共8小题；每小题2分，满分16分) 1．我获悉了你的计划，那就是我写信发表观点的原因。 I read about your plan，and that is _________________________________． 2．去拿你的物理书；它就在小卧室你放的那个地方。 Go and get your physics book；it is ________________________________． 3．给我印象最深刻的是他们从不丧失信心。 What impressed me most was _______________________________． why I'm writing to voice my opinion where you put it in the little bedroom that they never lost heart 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 4．(有)一辆新车将是很好的，不过实际情况是我们买不起。 A new car would be wonderful，but the fact is _______________________． 5．他没能赶上早班车，那是因为他今天早上起晚了。 He missed the first bus，and that was ______________________________． 6．上学期间，年轻人最关心的往往是外表。 Physical appearance is often ________________________________ during school days． that we cannot afford it because he got up late this morning what young people mainly care about 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 7．最令我难过的是，他们更关心我的学习，而不是我。 What upsets me most is ______________________________________ instead of me． 8．我喜欢这个城市的原因是它有优美的环境和干净的空气。 _________________________________ it has a beautiful environment and clean air． that they are more concerned about my study The reason why I like the city is that 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Ⅲ．短文语法填空(共10小题；每小题1.5分，满分15分) It seemed 1．____ everyone knew Wendy was a famous writer，but the question confusing people was 2．______ she came from and 3．________ she was born in 1961．What they did know was 4．____ she was loved by poor people．That's 5．_______ she always helped whoever was in need of money．The question was 6．_____ she started doing this．Wendy was generous and helpful，but some people thought she was chasing fame．The reason why they thought in this way was that where whether that because when 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 7．____ they didn't understand her，but what Wendy never minded was 8．____ others thought of her．That's 9．____ she was not angry．She just wanted to do whatever she thought was right．She thought that was 10．______ the meaning of life lied． that how why where 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Ⅰ．阅读理解(共4小题；每小题2.5分，满分10分) Eugene Newman Parker，a leading figure in heliospheric (日球层的) physics for the past half century，passed away peacefully at his home in Chicago on Mar．15．He was 94． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Acknowledged as a visionary in the field of heliophysics，Parker changed our understanding of the sun and its effects on the Earth and other bodies within the solar system．NASA even stated that “the field of heliophysics exists in large part because of Dr．Eugene Parker”．In 2018，Parker became the first living scientist to witness the launch of a spacecraft that was named in his honor． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Parker is best known for his groundbreaking theory on the existence of a phenomenon called “solar wind”，a continuous stream of charged particles that flow off the sun．It can become violent，causing space weather that impacts the Earth．When Parker's research was published in 1958，his theory was initially met with skepticism (怀疑) and ridicule by the scientific community．The general view at the time was that the space between planets was an absolute vacuum (真空)，and was thus 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) completely empty of any matter．But，there were no errors in his study or his calculations，and the theory was later proven to be correct in 1962，when a NASA spacecraft mission to Venus revealed the constant presence of a supersonic wind—exactly as Parker had predicted． That experience likely led to the advice Parker often gave young researchers: “If you do something new or innovative，expect trouble．But think critically about it because if you're wrong，you want to be the first one to know that．” Parker never co-authored a paper with his students，thus urging them to be independent． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Parker was humble，straightforward，and wise．His son Eric said，“My sister Joyce and I didn't get a real feel for what a ‘big dog’ our dad was in the field．” They got an even better sense when a month after Parker's death，they traveled to Lund，Sweden，to accept on his behalf the Crafoord Prize in Astronomy． 【语篇解读】　本文是一篇新闻报道。文章介绍了日球物理学的领军人物尤金·纽曼·帕克的贡献以及他对年轻人的影响。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) √ 1．What can we learn from the second paragraph? A．A spacecraft was named in memory of Parker． B．The sun has less effect on the Earth than expected． C．Parker deserved credit for his great contributions． D．NASA provided new insights into the lunar effect． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) C　[推理判断题。根据第二段中“Acknowledged as a visionary in the field of heliophysics，Parker changed our understanding of the sun and its effects on Earth and other bodies within the solar system．”以及“NASA even stated that ‘the field of heliophysics exists in large part because of Dr．Eugene Parker’．”可知，帕克对整个日球物理学领域做出了极大的贡献，他是值得赞扬的。故选C。] 2．Why did people view Parker's theory of “solar wind” skeptically at first? A．Some mistakes were found in his calculations． B．It went against the popular opinion at that time． C．The presence of a supersonic wind was proven by NASA． D．Matter was believed to exist in the space between planets． √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) B　[细节理解题。根据第三段中“When Parker's research was published in 1958，his theory was initially met with skepticism and ridicule by the scientific community．”以及“The general view at the time was that the space between planets was an absolute vacuum，and was thus completely empty of any matter．”可知，人们起初对帕克的“太阳风”理论持怀疑态度，是因为它违背了当时的流行观点。故选B。] 3．What advice did Parker often give young researchers? A．Expect challenges and critically evaluate your work． B．Stick to conventional methods to minimize risks． C．Depend on your professor for decision-making． D．Cooperate frequently to ensure success． √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) A　[细节理解题。根据倒数第二段中“That experience likely led to the advice Parker often gave young researchers：‘If you do something new or innovative，expect trouble．But think critically about it because if you're wrong，you want to be the first one to know that．’”可知，帕克给年轻人的建议是做创新的事情会有麻烦，但要批判性地思考，由此可知，帕克经常给年轻研究人员的建议是做好挑战的准备，批判性地评估你的工作。故选A。] 4．What words can be used to describe Parker according to the passage? A．Responsible and accessible． B．Straightforward and generous． C．Distinguished yet modest． D．Intelligent yet peculiar． √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) C　[推理判断题。根据第二段中“Acknowledged as a visionary in the field of heliophysics，Parker changed our understanding of the sun and its effects on the Earth and other bodies within the solar system．”可知，帕克是一位有杰出成就的人，结合最后一段中“Parker was humble，straightforward，and wise．”可知，帕克是杰出但谦逊的。故选C。] Ⅱ．阅读七选五(共5小题；每小题2.5分，满分12.5分) Einstein's Opinions on Creative Thinking “The greatest scientists are artists as well，” said Albert Einstein，one of the greatest physicists and an amateur pianist and violinist． For Einstein，insight did not come from logic or mathematics． 1 “All great achievements of science must start from intuitive (直觉的) knowledge．Imagination is more important than knowledge．” 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 2 Surprisingly，it wasn't the content of an idea，or its subject，that determined whether something was art or science，but how the idea was expressed．If what is seen and experienced is described in the language of logic，then it is science．If it is communicated and recognized intuitively，then it is art． 3 That's why he said that great scientists were also artists． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 4 “If I were not a physicist，” he once said，“I would probably be a musician．I often think in music and I see my life in terms of music．I get most joy in life out of music．” Music provided Einstein with a connection between time and space，which both combine spatial (空间的) and structural aspects．“The theory of relativity occurred to me by intuition and music is the driving force behind this intuition，” said Einstein．“My parents had me study the violin from the time I was six． 5 ” 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) A．But how did art differ from science for Einstein? B．Instead，it came from intrusion (直觉) and inspiration． C．My new discovery is the result of musical insight． D．There is no doubt that my theory was a great breakthrough then． E．Einstein himself worked intuitively and expressed himself logically． F．Einstein also owed his scientific insight and intuition mainly to music． G．For Einstein，it was the humanities that mainly contributed to his achievements． 【语篇解读】　本文是一篇说明文。文章主要介绍了爱因斯坦关于创造性思维的观点。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 1．B　[空处顺接前文，说明爱因斯坦认为洞察力应来自直觉。B项符合语境。故选B。] 2．A　[下文说明决定某件事是艺术还是科学是根据想法是如何表达的。空处引出了下文关于艺术和科学的区别的论述。A项中“art differ from science”和下文的“whether something was art or science”相呼应，而A项“但对爱因斯坦来说，艺术和科学有何不同？”正好引出本段的主题。故选A。] 3．E　[上文说明艺术和科学的不同。空处顺接上文，和下文形成因果关系。E项中的“worked intuitively and expressed himself logically” 和上文“看到和经历的是用逻辑的语言描述的就是科学，它被直观地传达和识别，那么它就是艺术”相呼应，表明爱因斯坦本人凭直觉工作，用逻辑表达自己，也是下文他被称为伟大的科学家也是艺术家的原因。故选E。] 4．F　[下文说明音乐对爱因斯坦帮助很大。F项适合作本段的主旨句。故选F。] 5．C　[上文说明音乐对爱因斯坦的工作产生的积极影响。空处承接上文，说明了他是靠音乐才有了新发现，而且和本段音乐对他的帮助的主题相符合。故选C。] Ⅲ．完形填空(共15小题；每小题1分，满分15分) Sujata Halarnkar would like to eat fish curry (咖喱) every day．It's a very 1 curry with the basic ingredients (原料)，nothing very fancy．However，it's a recipe passed down from her 2 who is still living in Mumbai，India． Halarnkar now lives in Yuma，Arizona，but she 3 in Mumbai，and her grandparents lived in a(n) 4 coastal village．Her mother would send her to her grandparents' home for 5 ．There，her grandma would cook this curry for her． 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) “They lived in a neighboring village and I went there almost every week．That is one of the 6 memories I had about my childhood，” Halarnkar said．“We had a pretty and peaceful beach to ourselves and we would 7 fish from the sea every morning．” 8 later，fish curry is still the comfort food to Halarnkar，who said her family always cooks it when they 9 at weekends in the US． “We'll go out to the fish market，buy fresh 10 and make this curry，” she said．“We don't even worry about vegetables．We just eat some steamed rice with this fish curry．” 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Halarnkar has passed on the 11 to her daughter Natasha，who lives in San Diego and shares Halarnkar's love of cooking．And even though the next 12 has the recipe，Halarnkar said she still 13 the curry her grandma made in India．In fact，she's looking forward to having it next time she goes to 14 her． “I'm 100% sure that she is going to make it for me when I 15 there，” Halarnkar said． 【语篇解读】　本文是一篇记叙文。文章讲述了Sujata Halarnkar跟外祖母学会了做鱼咖喱的故事。 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 1．A．expensive B．extraordinary C．new D．traditional D　[根据空后“with the basic ingredients”及下文细节可知，这种鱼咖喱是比较传统的(traditional)，里面没什么昂贵的食材。故选D。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 2．A．grandma B．husband C．aunt D．neighbor A　[根据下文“There，her grandma would cook this curry for her．”及“...Halarnkar said she still __________ the curry her grandma made in India．”可知，她是从外祖母(grandma)那里学会做鱼咖喱的。故选A。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 3．A．passed away B．settled down C．grew up D．cried out C　[根据空前“Halarnkar now lives in Yuma，Arizona，but”可知，她是在孟买长大(grow up)的。故选C。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 4．A．dangerous B．nearby C．busy D．ugly B　[根据下文“They lived in a neighboring village and I went there almost every week．”可知，外祖母家很近(nearby)，她几乎每个周末都会去外祖母家。故选B。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 5．A．parties B．schools C．weekends D．gifts C　[根据下文“They lived in a neighboring village and I went there almost every week．”可知，外祖母家很近，她几乎每个周末都会去外祖母家。故选C。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 6．A．saddest B．hardest C．strangest D．best D　[根据空后“memories I had about my childhood”及下文“We had a pretty and peaceful beach...from the sea every morning．”可知，这样的儿时记忆当然是最美好的(best)：跟着外祖母在美丽的海滨捕鱼做咖喱。故选D。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 7．A．see B．catch C．raise D．save B　[根据空后“fish from the sea every morning”可知，跟着外祖母在美丽的海滨捕(catch)鱼做咖喱。故选B。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 8．A．Days B．Weeks C．Months D．Decades D　[根据空后“fish curry is still the comfort food to Halarnkar”可知，此处指几十年(decades)后，鱼咖喱还能给身处异国他乡的Halarnkar带来莫大的安慰。故选D。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 9．A．work B．play C．hunt D．gather D　[根据空后“at weekends in the US”可知，在美国她的家人周末聚会(gather)时，也总买鱼做咖喱。故选D。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 10．A．chicken B．fish C．meat D．milk B　[根据空前“We'll go out to the fish market，buy fresh”可知，去市场买新鲜的鱼(fish)做咖喱。故选B。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 11．A．recipe B．talent C．house D．thought A　[根据空后“to her daughter Natasha，who lives in San Diego and shares Halarnkar's love of cooking”可知，Halarnkar已经把这个菜谱(recipe)传给了自己的女儿。故选A。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 12．A．store B．village C．generation D．guest C　[根据空前后“even though the next ________ has the recipe”可知，此处指下一代人(generation)得到了菜单。故选C。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 13．A．avoids B．invents C．hides D．prefers D　[根据空后“the curry her grandma made in India”可知，Halarnkar还是更喜欢(prefer)外祖母做的咖喱。故选D。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 14．A．pay B．hug C．visit D．treat C　[根据空前“she's looking forward to having it next time she goes to”可知，她正盼望着回印度探(visit)亲。故选C。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 15．A．arrive B．leave C．move D．marry A　[根据空前后“I'm 100% sure that she is going to make it for me when I ________ there”可知，此处指，她一到家(arrive)，外祖母准会给她做鱼咖喱。故选A。] √ 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Ⅳ．语法填空(共10小题；每小题1.5分，满分15分) Dr．Jian Zhou was a molecular biologist and virologist who worked with Professor Ian Frazer 1．__________ (develop) the technology toward the Gardasil and Cervarix vaccines (疫苗)，2．________ protect against viruses that cause cervical cancer． to develop which 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) Born in Hangzhou，China，Dr．Zhou graduated from Wenzhou Medical College and went on to obtain a Master's degree from Zhejiang Medical University．He studied for a PhD at Henan Medical University，3．_____________ (complete) this in 1987．He received a Doctor of Medicine from the University of Queensland in 1994． Dr．Zhou's interest in human papillomavirus (HPV) 4．________ (bring) him to Australia in 1990 to join Professor Ian Frazer's Centre for Immunology and Cancer Research at the University completing brought 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) of Queensland．Nearly all cervical cancers were caused by HPV and it 5．_______________ (believe) that a vaccine 6．________ HPV might work．7．________ vaccine required a particle that would stimulate an immune (免疫的) response to the virus，but without causing an infection．This was a 8．__________________ (significance) focus of Dr．Zhou's work with Professor Frazer and in 1990，working also with his wife，he succeeded in creating a virus-like particle that was now the basis for the Gardasil and Cervarix vaccines． was believed against The significant 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 9．__________________ (fortunate)，Dr．Zhou died in 1999，at the age of 42．His work has had a huge impact on human health globally．The Australian Academy of Health and Medical Sciences is therefore delighted to establish an award in 10．___________________ (recognize) of Dr．Zhou．The Jian Zhou Medal was made possible by a generous donation from the Frazer Family Foundation． 【语篇解读】　本文是一篇记叙文。文章主要介绍了分子生物学家及病毒学家周健博士的生平事迹及其在HPV疫苗研发领域的贡献。 Unfortunately recognition 课时提升作业 Period 4　课时学案 单元语法讲练(Learning About Language) 1．to develop　[考查非谓语动词。who引导的定语从句的谓语为worked，此处为非谓语动词，这里使用develop“研制”的不定式，作目的状语。故填to develop。] 2．which　[考查定语从句。本空引导非限制性定语从句，修饰先行词vaccines，关系词代替先行词在从句中作主语，应用关系代词which引导。故填which。] 3．completing　[考查非谓语动词。句意：他在河南医科大学攻读博士学位，1987年毕业。本句谓语为studied，此处为非谓语动词，complete与主语he是主动关系，这里使用complete“完成”的动词-ing形式completing，作状语。故填completing。] 4．brought　[考查时态。此处描述的是过去的动作，应用一般过去时，谓语用bring“带……到某处”的过去式。故填brought。] 5．was believed　[考查动词的时态、语态和主谓一致。此处it作形式主语，真正的主语是that引导的从句，与believe“相信”之间是被动关系，且描述过去的情况，故用一般过去时的被动语态，主语it为第三人称单数，be动词用was。故填was believed。] 6．against　[考查介词。介词against表示“对抗”，这里指疫苗能抵抗HPV。故填against。] 7．The　[考查冠词。这里特指研发中的疫苗，故使用定冠词the，位于句首，首字母大写。故填The。] 8．significant　[考查形容词。此处需用形容词significant “重要的”修饰名词focus，作前置定语。故填significant。] 9．Unfortunately　[考查副词。这里需要用副词unfortunately“不幸的是”，作状语，位于句首，首字母大写。故填Unfortunately。] 10．recognition　[考查名词。本空用名词recognition，in recognition of为固定搭配，意为“为了表彰”。故填recognition。] $