1、Unit 4 Everyday economics Developing ideas&Presenting Ideas& Reflection2021-2022学年高二英语外研版（2019）选择性必修四同步课时作业一、句型转换1.用倒装句改写下句We will never worry about getting fake notes or having to count change._2.用非限制性定语从句合并下句Most of us are used to scanning QR codes to pay for whatever we purchase such as books and
2、 clothes.It is a glimpse into the life of most Chinese like me and my family._二、翻译题3.人们普遍认为,中国是全球最大的移动支付市场。_ _ _ _ China is the largest mobile payment market globally.4.另一个优势是,如果你使用移动支付,通常会有折扣,因为主要的在线支付平台都在竞争,以吸 引更多的消费者使用它们的服务。Another advantage is that there are often discounts if you make mobile pa
3、yment, as major online payment platforms _ _ to have more consumers _ _ _ their service.5.它因方便而赢得了消费者的支持。It has _ _ _ with its convenience.6.我个人认为应该鼓励移动支付。Personally, I think mobile payment _ _ _.7.在中国,移动支付极大地改变了人们的生活。Mobile payment has greatly _ _ _ in China.三、七选五Is Popcorn a Healthy Snack? If your
4、e a popcorn lover, you might be secretly hoping this popular snack is a healthy one. However, it is not so straightforward to discover whether popcorn is healthy or not. _. Therefore, knowing healthy ways to add popcorn to your meal plan is a must. Nutritional Benefits of Popcorn_. Its also a good s
5、ource of fiber, which is beneficial for digestive health, and aids in healthy weight management. A 3-cup portion of unsalted air-popped popcorn provides just 90 calories but almost 4 grams of dietary fiber and 3 grams of protein. _ The healthiest popcorn choices are unsalted air-or oil-popped popcor
6、n without butter. Air-popped popcorn is the lowest calorie option, providing just 30 calories per cup, and oil-popped popcorn adds an extra 10 calories in each cup. Lightly salting your popcorn is generally okay, as long as your total daily sodium intake doesnt exceed recommended amounts. The Amount
7、 of Popcorn to Eat One portion of popcorn is equal to three cups of popcorn. Adults generally require five to eight servings of grains daily, depending on the age, gender, and activity level. This is equal to 15 to 24 cups of popcorn daily if you get all your grains from popcorn. _ Popcorn to Avoid
8、Many types of popcorn arent so healthy, containing added calories, sodium, saturated fat, or sugar. Heavily buttered and salted popcorn, like movie-theater popcorn, should only be eaten in moderation(适度). Another type of popcorn to avoid due to the high calorie and sugar content is caramel popcorn,
9、which can contain over 200 calories per cup._ Therefore, consume them sparingly(有节制地). A.Healthy Popcorn OptionsB.Air-popped Popcorn PreferredC.There are few types of popcorn in the worldD.Some types of popcorn are healthy, while others are notE.Cheese popcorn is often high in sodium and saturated f
10、atF.Popcorn is a kind of whole grain and a healthy source of dietary carbohydratesG.So when eating popcorn as a snack, aim for about three cups as a rule of thumb四、语法填空 Weve been told_ we were toddlers that Its good to share. Today, the action of sharing takes_ extra meaning. It _ (expand) to almost
11、 every aspect of our lives. This wealth of ways of sharing is a _ (respond) to our increasing demand for quality goods and services at _ (compete) prices, all delivered at the click of a button. Whats more, sharing encourages us to reuse items, thereby _ (cut) down on waste. And set-ups such as bike
12、 and car sharing do_ further favour for the environment by reducing the number of polluting vehicles on the road. But the sharing economy is not without its problems. The sharing economy is developing _ (fast) than existing regulations or ongoing supervision. In addition, the sharing economy is subj
13、ect to abuse of trust. Finally, personal data, the heart of the sharing economy, is not yet secure. Nonetheless, what is in no doubt _ (be) that the sharing economy is _ (increase) relevant to our daily lives as well as to the global economy.答案以及解析一、1.答案：Never will we worry about getting fake notes
14、or having to count change.2.答案：Most of us are used to scanning QR codes to pay for whatever we purchasesuch as books and clothes, which is a glimpse into the life of most Chinese like me and my family.二、 3.答案：Its generally believed that4.答案：are competing, take advantage of5.答案：won over consumers6.答案
15、：should be encouraged7.答案：changed peoples life三、答案：- DFAGE解析：本空是对上文的解释说明, 同时也引出下文, 结合选项可知, 选项D起承上启下的作用, 故选D项。本部分主要讲爆米花的好处, 选项F与本部分主旨相对应, 故答案为F项。分析文章结构可知, 本空为小标题, 本部分主要讲健康的爆米花的选择, 结合选项可知, 应选A项。本部分主要讲健康的爆米花食用量, 结合选项可知, 应选G项。本部分主要列举了要避免的不太健康的爆米花的种类, 结合选项可知, 应选E项。四、答案：since; On; has expanded; response;
16、competitive; cutting; a; faster; is; increasingly 解析：考查状语从句。句意:自从我们学走路以来,我们就被告知分享有好处。 since自从以来,引导时间状语从句。 考查介词。take on意为呈现,具有。考查动词的时态。句意:它几乎已经扩展到我们生活的方方面面。此处表示过去发生的动作对现在造成的影响或结果,应用现在完成时。考查词性转换。不定冠词a后用名词形式。考查词性转换。此处修饰名词prices,应用形容词形式。考查非谓语动词。sharing与cut down on之间为主动关系,此处为现在分词短语作状语。考查冠词。do a favour意为帮忙,为固定短语。考查比较级。根据句中的than可知应用比较级。考查主谓一致及时态。空前为what引导的主语从句,故谓语动词应用单数形式,结合上下文可知应用一般现在时,故填is。考查词性转换。设空处修饰形容词relevant,应用副词形式。
