【正文】 lingit? can help the native people know some language topics. can help the: native people earn money and buy a. house or nice things is a very popular app among the native speakers is a native language spoken by fewer than 200 people.（4）What is the main idea of the passage? Indian tribes39。 efforts to increase native speakers. for the disappearance of some American Indian languages. to help the native tribes lead a traditional life. popularity of the language learning apps.【答案】 （1）B（2）C（3）D（4）A 【解析】【分析】本文是一篇說明文，美國的印第安人正在使用新的方法來增加本族語言的使用，否則，他們的本族語言將面臨嚴重的危機。 （1）考查細節(jié)理解。根據(jù)第二段中的“Yet the number of native. Americans with the ability to speak their tribe39。s language has decreased over the past century. ”但是能說他們本族語言的本地美國人的數(shù)量在過去的一個世紀中已將減少?？芍瑫f本族語的美國土著的人數(shù)在過去的一個多世紀中已經(jīng)減少了，故選B。 （2）考查細節(jié)理解。根據(jù)第六段中的“However, fearing a loss of history and culture, the Indian Nations are experimenting with new ways to increase the language ability of tribal members.”然而，害怕失去自己的歷史和文化，許多印第安部落嘗試新的方法來提升族人的本族語使用能力。可知，如果越來越多的族人只說英語，他們將會失去自己的歷史和文化。故選C。 （3）考查細節(jié)理解。根據(jù)第九段中的“The Tlingit tribe has about 10, 000 members. They live mainly in southeastern Alaska. But as of 2013, the tribe had only 125 native speakers left.”特林吉特部落有大約一萬人。他們主要居住在阿拉斯加東南部。但是就2013年的統(tǒng)計，這個部落只有125人可以說自己民族的語言，可知，現(xiàn)在僅僅有不到兩百人可以說這種語言了，故選D。 （4）考查主旨大意。本文前六段描述了美國印第安人在民族語言方面面臨的處境以及這一處境引起的擔憂，最后四段提出了針對這一問題的解決方案：美國的印第安人正在使用新的方法（app）來增加本族語使用人數(shù)。選項A中efforts能凸顯人們這一問題的擔心及在努力尋求解決方案方面所做的努力。故選A。 【點評】本題考點涉及細節(jié)理解和主旨大意兩個題型的考查，是一篇文化類閱讀，考生需要準確捕捉細節(jié)信息，同時根據(jù)上下文的邏輯關系，進行概括和歸納，從而選出正確答案。8．閱讀理解 Slowly but surely we39。re moving closer and closer to 5G world. From smarthome security to selfdriving cars, all the internetconnected devices in your life will be able to talk to each other at lightningfast speeds with reduced delay, Objectively speaking, the fastest 4G download speeds in the U. S. top out at an average of Mbps. But by parison 5G promises gigabit (千兆) speeds. 5G is one of those signs, along with artificial intelligence, of this ing data age, said Steve Koenig, senior director of market research for the Consumer Technology Association. The selfdriving vehicle is a great emblem of this data age, and that is to say, it is a sign of time, because with one single task, driving, you have massive amounts of data ing from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It39。s pulling in data from other vehicles about road conditions down the lane. It could be weather information, but also connected infrastructure (基礎設施) construction. There39。s lots of data behind that task, which is why we need high speed. Augmented reality glasses and virtual headset haven39。t yet broken the mainstream, but tech panies are joyfully betting that these devices will eventually replace our smartphones. With 5G, that could actually happen. This is notable because panies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smartphones. Ericsson stated at February39。s Mobile World Congress how smart glasses could bee faster and lighter with a 5G connection, because instead of being weighed down with ponents, the glasses could rely on hardware for processing power. But don39。t get too excited. There39。s still a lot of work to be done in the meantime, including various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn39。t concentrated only in big cities.（1）What does the author want to stress in Paragraph 1? lightingfast speed of 5G. expectation of 5G world. difference between 4G and 5G. internetconnected devices in our life.（2）What does the underlined word emblem in Paragraph 2 mean? ....（3）We can infer from the text that ________. world won39。t e without AR glasses helps to create the artificial intelligence vehicle pany is developing AR glasses worldwide panies will face the fact that smartphones may be replaced（4）What will the author probably tell us next? to fully expand 5G coverage. glasses will bee faster and lighter. 5G isn39。t concentrated in big cities. importance of infrastructure construction.【答案】 （1）A（2）C（3）D（4）A 【解析】【分析】本文是一篇說明文，隨著科技的不斷發(fā)展，5G時代即將來臨。它最大的優(yōu)勢就是上網(wǎng)速度大大加快。 （1）考查推理判斷。第一段提出5G時代即將來臨，接下來介紹5G上網(wǎng)下載的高速度，相比于目前的4G，5G有望達到千兆的上網(wǎng)速度。作者在第一段想強調(diào)5G的超級速度。故選A。 （2）考查詞義猜測。根據(jù)第二段中的“and that is to say, it is a sign of time”也就是說，這是時間的標志）是對前面的補充說明?？赏浦瑒澗€詞的意思是“標志，象征”。故選C。 （3）考查推理判斷。根據(jù)第三段中的“This is notable because panies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smartphones.”這一點值得注意，因為據(jù)報道，蘋果(Apple)等公司正在開發(fā)增強現(xiàn)實眼鏡，以幫助——甚至取代——智能手機）可知，我們可以從文中推斷，科技公司將面臨智能手機可能被取代的事實。故選D。 （4）考查推理判斷。根據(jù)最后一段中的“But don39。t get too excited. There39。s still a lot of work to be done in the meantime, including various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn39。t concentrated only in big cities.”但是不要太激動。與此同時，仍有很多工作要做，包括各種試驗，以確保收音機能很好地配合硬件和基礎設施建設，這樣5G就不會只集中在大城市，可知，作者接下來可能會告訴我們“如何全面擴大5G覆蓋?！惫蔬xA。 【點評】本題考點涉及細節(jié)理解，詞義猜測和推理判斷三個題型的考查，是一篇科技類閱讀，考生需要準確掌握細節(jié)信息，并根據(jù)上下文進行邏輯推理，從而選出正確答案。9．閱讀理解 It39。s the lunch break at Shanghai Xinhua Middle School. No mobile phones can be heard ring anywhere. The mon sight of crowds of children chatting on their phones or sending short messages has disappeared. A grade2 student said, I couldn39。t concentrate (集中精力) during classes. if the cellphone was with me, I couldn39。t help checking if there were messages or missed phone calls. I even played games on the phone sometimes. The school leaders say they feel the ban is necessary to keep order in class. They even gave out an open letter to remind parents not to let their children bring mobile phones to school. More than 96 percent of parents say they wele the school decision. The school is also being flexible (靈活的) in carrying out the plan .Those students who live far from school are allowed to bring mobile phones to contact their parents. But they still have to switch them off in classrooms. Medical experts have also weled the school decision. They say too much dependence on mobile phones can cause many psychological problems in teenage students.（1）What can we learn from paragraph1? Xianxia Middle School is very crowded during l