Unit 7 Whats in the Ads 情态动词 should 表建议-2025-2026学年七年级英语下册语法知识点全解（教科版五四制）

初中教科版（五四制） 【寒假专版】7下Unit7知识点全解 寒假专版 7 Unit 7 What's in the Ads? 情态动词should表建议 考频分析 教科版（五四制）7下Unit7中，情态动词should表建议是基础语法点，考频占句法总量的5%左 右，主要出现在单项选择(1-2题)、完形填空(1-2题)、阅读理解（词义猜测题中涉及）、书面表 达（提建议场景常用，影响表达合理性）。在语境理解类题目中，should表建议的语气及与其他情 态动词的辨析是解题关键。 知识点二：情态动词should表建议的用法 1.基本结构 1.肯定句：主语+should+动词原形 例句：You should eat more vegetables..（你应该多吃蔬菜。) 2.否定句：主语+should not(should't)+动词原形 例句：He shouldn't stay up late.(他不应该熬夜。) 3.疑问句：Should+主语+动词原形？ 例句：Should I call her now?(我现在应该给她打电话吗？) 2.常见用法场景 1.表示建议或劝告（常用于给出合理的、有益的意见） 例句：We should study hard for the exam.(我们应该为考试努力学习。) 2.表示责任或义务（强调应该做的正确事情） 例句：You should help your parents with housework.(你应该帮父母做家务。) 3.用于提供建议的固定句型： 。You should+动词原形+.（直接建议） 例句：You should drink more water every day.(你应该每天多喝水。) 。Should+主语+动词原形+.？（征求建议） 例句：Should we go to the park this weekend?(我们这个周末应该去公园吗？) 3.回答方式 1 初中教科版（五四制） 【寒假专版】7下Unit7知识点全解 1.肯定回答：Yes,主语+should. 例句：Should I wear a coat today?(我今天应该穿外套吗？) 一Yes,you should.（是的，你应该。) 2.否定回答：No,主语+shouldn't. 例句：Should he smoke here??(他应该在这里抽烟吗？) 一No,he shouldn't.（不，他不应该。) 4.与其他情态动词的区别（初中阶段） 1.与must的区别：must强调“必须”（语气更强，有强制性），should强调“应该”（语气较委婉，表 建议) 例句：You must follow the school rules.(你必须遵守校规。)（必须做，有规定） You should follow the school rules.(你应该遵守校规。)（建议做，更合理） 2.与can的区别：can表示“能力”或“许可”，should表示“建议” 例句：I can swim.(我会游泳。)（能力） You should swim every week.(你应该每周游泳。)（建议） 知识点三：情态动词should表建议 1.基本用法（核心功能） should表示“应该；应当”，用于提出建议或劝告，主语通常为第一、二人称。 例句：You should brush your teeth twice a day.(你应该每天刷两次牙。) 例句：We should study hard for the exam.(我们应该为考试努力学习。) 2.否定形式（建议否定) should not(缩写shouldn’t)表示“不应该”，用于劝阻或禁止。 例句：You shouldn't eat too much junk food.(你不应该吃太多垃圾食品。) 例句：He shouldn't play computer games all day.(他不应该整天玩电脑游戏。) 3.疑问形式（征求建议） 用于提出疑问，询问对方意见或建议，结构为“Should+主语+动词原形？” 例句：Should I go to the doctor?(我应该去看医生吗？) 例句：Should we take a bus or walk?（我们应该坐公交还是步行？) 4.固定句式（中考高频） 1.You should+动词原形+其他（直接建议） 例句：You should listen to your parents.(你应该听父母的话。) 初中教科版（五四制）》 【寒假专版】7下Unit7知识点全解 2.It’s a good idea to../You’dbetter.(可替换建议表达) 例句：It's a good idea to read English every morning.(每天早上读英语是个好主意。) 3.ShouldI.?/Should we..?(征求对方建议的回应) 例句：一Should I wear a coat today?一Yes,you should.It's cold.(一我今天应该穿外套吗？一是的， 应该穿。天气很冷。) 考法精析 考法一：should表建议的基本用法及句式转换 核心：根据语境判断是否使用should表建议，并正确运用其肯定句、否定句及疑问句结构 真题1（语法填空)： You_(not play)computer games for too long.It's bad for your eyes. 答案：shouldn't play 解析：根据语境“玩电脑游戏太久对眼晴不好”可知此处表建议“不应该”，否定句结构为should not+动词原形，缩写为shouldn't。 真题2（单项选择)： -I believe the ads on the Internet? -No,you_.You should check the information first. A.Should;shouldn't B.Must;mustn't C.Can;can't D.May,needn't 答案：A 解析：根据答句中的“You should check”可知问句是征求建议，用Should引导疑问句；否定回答 用No,主语+shouldn't,故选A。 考法二：should表建议的句式转换与情景应用 核心：结合具体语境，将should肯定/否定/疑问句式与委婉建议句式(Why not.How about.You'd better.)进行转换及应用 真题1（句型转换)： 将句子You should ask the teacher for help.”转换为同义的委婉建议句。 答案：Why not ask the teacher for help? 解析：根据知识点三，Why not+动词原形？”与You should+动词原形均表建议，可直接转换。 真题2（单项选择)： -It's cold outside.take a coat? -Good idea A.Why not B.How about C.You'd better D.Should 初中教科版（五四制） 【寒假专版】 7下Unit7知识点全解 答案：A 解析：由句末问号可知此处为疑间句，选项中只有Why not可引导表建议的疑问句(Why not+动 词原形？)：How about后需接doing,You'd better后接动词原形但为陈述句，Should引导疑问句时 结构为”Should+主语+动词原形”，此处空格后直接接动词原形，故选A。 考法三：情态动词should表建议的综合运用及情景转换 核心：结合广告主题语境，正确运用should表建议的基本结构、委婉句式及否定表达，并能进行 不同建议句式间的转换 真题1（单项选择)： -Should we believe the ads that say"Buy one get one free"? -We should check if the original price is increased first. A.Yes we should B.No we shouldn't C.Yes we shouldn't D.No we should 答案：B 解析：根据答句“我们应该先检查原价是否上涨”可知，回答应为否定建议，否定回答结构为“0， 主语+shouldn't”,故选B。 真题2（句型转换)： You shouldn't buy things just because ads look attractive..(改为同义句) It's not a good ideathings just because ads look attractive. 答案：to buy 解析：“shouldn't+动词原形”表否定建议时，可转换为“It's not a good idea to+动词原形”结构， 此处动词原形为buy。 解题小妙招 should表建议解题妙招 建议判断看语境，劝告建议用should: 肯定结构很简单，should后接动原： 否定直接加not,shouldn't来表不该： 疑问要把should提前，回答用should/shouldn't: 同义转换有技巧，Why not加动原： How about接doing,You'd better后动原： 情态区分看答句，should问答最匹配： 广告语境要注意，建议表达多样化。 真题演练 初中教科版（五四制）》 【寒假专版】7下Unit7知识点全解 演练一：单项选择 1.-I tell my parents about the mistake? -Yes,you.They will help you. A.Should;should B.Must;mustn't C.Can;can't D.May,needn't 2.Youeat more vegetables.They are good for your health. A.should B.must C.can D.may 3.It's raining heavily.take an umbrella with you? A.Why not B.How about C.You'd better D.Should 4.-Should we follow the advice in the ad? -No,we_.Some ads may not be true. A.shouldn't B.mustn't C.can'tD.needn't 5.Youplay soccer in the street.It's dangerous. A.shouldn’tB.mnustn'tC.can’tD.needn’t 6.-I call him right now? -No,you_.He is having a meeting. A.Should;shouldn't B.Must;mustn't C.Can;can't D.May,needn't 7.try this new restaurant?The food there is delicious. A.Why not B.How about C.You'd better D.Should 8.Students_arrive on time for class.It's the school rule. A.should B.must C.can D.may 9.Youspend too much time on your phone.It's bad for your study. A.shouldn't B.mustn't C.can'tD.needn't 10.-we buy this product because of the ad? -No,we should check the reviews first. A.Should B.Must C.Can D.May 演练二：填空试题 1.You(study)for the test tomorrow.It's important. 2.They(not swim)in the river.It's not safe 3.(should)I tell her the truth? 4.You _(drink)more water when you have a fever. 5.He(not eat)too much candy.It's bad for his teeth. 6.We(help)the old man carry his bags. 7.(should)they follow the ad's advice? J 初中教科版（五四制）》 【寒假专版】7下Unit7知识点全解 8.You (not play)music too loudly at night 9.She(call)her mother back this evening. 10.-(should)we take a taxi to the station? 演练三：语法填空（文章） Ads can be helpful,but we need to be careful.First,you-(not believe)all ads easily.Some ads may (exaggerate)the product's effects.Second,if you see an ad for a toy,you(ask)your parents before buying it.They can help you check if it's safe.Third,when you see a food ad,you(not buy)the food just because the ad looks good.You(read)the ingredients list first.Finally,if you are not sure about an ad,you(talk)to your teachers or parents.They-(give)you good advice.Remember:ads are for selling products,so you(think)carefully before spending money.(should)you ever feel confused by an ad? Yes,and that'snormal.Just remember:you(not let)ads make all your decisions.You(use)your own judgment! 答案区 演练-：1.A2.A3.A4.A5.A6.A7.A8.A9.A10.A 1.should study 2.shouldn't swim 3.Should 4.should drink 5.shouldn't eat 6.should help 7.Should 8.shouldn't play 9.should call 10.Should 1.shouldn't believe 2.should ask 3.shouldn't buy 4.should read 5.should talk 6.should give 7.should think 8.Should 9.shouldn't let 10.should use 6