Shake Shack is a new kind of restaurant becoming more popular in the US. The restaurants are not fast food. They {#blank#}1{#/blank#} (know) as “fast casual”.

Researchers say Americans want more {#blank#}2{#/blank#} (choose) and fresh food when choosing where and what to eat. This trend is one reason why the fast food restaurant McDonald's has struggled financially. While McDonald's is struggling {#blank#}3{#/blank#} (win) their customers back, Shake Shack, is doing well.

Bonnie Riggs, {#blank#}4{#/blank#} restaurant expert, has studied Americans' restaurant habits for almost 30 years. She says one reason why Americans like fast casual food is {#blank#}5{#/blank#} it's new and creative. Besides it is something different and people like to try new things. Her study shows Americans {#blank#}6{#/blank#} (make) 61 billion visits to restaurants last year. Three out {#blank#}7{#/blank#} four visits were to fast food restaurants, like McDonald's. Fast casual is still a small percentage of restaurant visits, but it has developed fast. Just as Ms Riggs says, “it's growing {#blank#}8{#/blank#} (rapid) because they meet consumers' needs.

    They know it's {#blank#}9{#/blank#} (prepare) while they wait; it's fresh, quality good, good tasting food at {#blank#}10{#/blank#} (reason) and affordable prices.

    It is not a secret {#blank#}1{#/blank#} trees are vital to our life. They provide us with food, wood and most {#blank#}2{#/blank#} (important), oxygen. Now there is one more thing we can add to this list—blocking out harmful bacteria from water.

    The discovery {#blank#}3{#/blank#} (make) by a team {#blank#}4{#/blank#} (consist) of scientists from the Massachusetts Institute of Technology (MIT) and high school students {#blank#}5{#/blank#} were seeking a natural water filter(过滤)—one that would help communities in developing countries that do not have {#blank#}6{#/blank#} (accessible) to modern water filter systems.

    The {#blank#}7{#/blank#} (research), led by Professor Rohit Karnik, decided to turn{#blank#}8{#/blank#} trees for help, because they could allow liquid to flow through, while blocking out air bubbles.

    They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree. The people related then tested the wood's filtering ability by pouring water containing red dye particles of different sizes through. To their {#blank#}9{#/blank#} (amaze), they found that it was effective in trapping all the particles. Greatly {#blank#}10{#/blank#} (encourage), the team conducted another experiment, this time with water that contained bacteria. Sure enough, the sapwood held back 99% of the bacteria, allowing only 1% to flow through.

    Starting a new school term is always exciting.It is a chance {#blank#}1{#/blank#} (see) your friends again.But most exciting of all,the new term lets you take up all hobbies.In Britain it is common for students to take up new hobbies after the Christmas holidays.Promising to learn something new is a common New Year's resolution.

    Most schools offer different kinds {#blank#}2{#/blank#} hobby classes.Students  {#blank#}3{#/blank#} (usual)take  them in their free periods or after school.Some classes you have to pay for but some {#blank#}4{#/blank#} (be) free.For example,I once took a free Wednesday evening gymnastics class {#blank#}5{#/blank#} is offered by my school.But when I learnt how to play the drum,my parents had to pay for the lessons.

    The most popular extra classes at my school were piano lessons and drama lessons.Both classes offered exams students could take.Students with many hobbies sometimes felt {#blank#}6{#/blank#} stressed than those without any.But the students with hobbies left school with many extra {#blank#}7{#/blank#} (skill).

    I haven't continued any of the hobbies I {#blank#}8{#/blank#} (begin) at school.But I have never regretted taking  {#blank#}9{#/blank#} . My {#blank#}10{#/blank#} (good) friend today is someone I met in my gymnastics class.

    High school students have defeated {#blank#}1{#/blank#} artificial intelligence device designed to pass the national college entrance exam, in Chengdu City, Sichuan Province.

    Forty-three students from liberal arts classes at Chengdu Shishitianfu High School joined the two-hour contest {#blank#}2{#/blank#} (finish) a math test in the standard national entrance exam against the robot, the brainchild of four years' research by Zhun Xing Yun Xue Technology Co.Ltd.

    Students scored 106 points {#blank#}3{#/blank#} average, outperforming the computer program that had 93 points. She Yujia, a student in the contest, said she felt like {#blank#}4{#/blank#} (fight) the program on behalf of humans, especially after Google's AlphaGo {#blank#}5{#/blank#} (beat) professional Go player Lee Sedol of South Korea last year.

    Researchers who developed the AI test taker, {#blank#}6{#/blank#} is also part of a project by the Ministry of Science and Technology, said the failure was due to a poor understanding of concepts in some math problems.

    Lin Hui, CEO of the developing company, said more efforts {#blank#}7{#/blank#} (make) to fix bugs and improve performance of the program in the near future, with a focus on math {#blank#}8{#/blank#} (apply).

    Chinese students are usually separated into science and liberal arts classes at high school, a practice that allows them to stay {#blank#}9{#/blank#} (compete) in the college entrance exam by choosing {#blank#}10{#/blank#} (prefer) subjects. Math tests for liberal arts students are usually easier than those given to science students.

    From {#blank#}1{#/blank#} early age he was interested in plants. He {#blank#}2{#/blank#} (study) agriculture in college and as a young teacher he began experiments in crop breeding. He thought that the key to {#blank#}3{#/blank#} (feed) people was to have more rice and to produce it more quickly. He thought there was only one way {#blank#}4{#/blank#} do this-by crossing different species of rice plant, and then he could produce a new plant which could give a {#blank#}5{#/blank#} (high) yield than either of the original plants.

    Macao, {#blank#}1{#/blank#} lies to the south of Guangdong, is a small city with  Guangzhou, Shenzhen, Zhuhai and Hong Kong as its neighbors. It has {#blank#}2{#/blank#} population of 550,000, 96% of which {#blank#}3{#/blank#} (be) Chinese. It is a clean and {#blank#}4{#/blank#} (beauty) city with trees, flowers, and green grass everywhere. There are lots of cars {#blank#}5{#/blank#} (run) in the narrow streets. {#blank#}6{#/blank#} all people obey the traffic rules. Macao is also famous {#blank#}7{#/blank#} its gambling, and several million {#blank#}8{#/blank#} (visit) come to tour every year.

    Macao, which used to belong to China but {#blank#}9{#/blank#} (take) away by the Portuguese in 1887 from the Qing Dynasty, returned to our motherland {#blank#}10{#/blank#} December 20th, 1999.