七年级上册英语周报外研2020至2021期末检测卷答案，小编收集了七年级上册英语周报外研2020至2021期末检测卷答案的相关答案，没有答案的敬请期待！完整版的周报答案关注wx号：趣找答案
单句改错1. As the work was done, he went on to surf the Internet. 题目和参考答案
Cheaters called " pirates" often use camcorders (便携式摄像机)and cellphones to make illegal copies of blockbusters (大片)in the local theatre. These pirates then sell those recordings on the street or over the Internet at very low prices. Some share them for free.
"It's unfair for people to pirate movies," says 15-year-old Hadaia Azad Ezzulddin. " Movie piracy takes money out of the pockets of thousands of people in the movie industry," she notes. Victims include famous actors and directors as well as local theatre owners and their employees.
Hadaia came up with an idea that could help stop movie piracy. Hadaia's idea is to use infrared (红外线的)light. This range of light is invisible to the human eye. It is visible, however, to many types of cameras. Theatre owners could place small infrared lights on their movie screens. The lights would not disturb people watching the movie. It would, however, distort the recordings made by many types of cameras.
To test her idea, Hadaia built a box with a movie screen inside. Then, she projected images on that screen through a hole in the box. She took recordings of those images, using nine different types of cameras. These included the types found in cellphones as well as camcorders. During some tests, she also turned on light emitting diodes (发光二极管），or LEDs. The LEDs were embedded (植入的)in a certain place behind the movie screen. They gave out infrared light.
Sure enough, she showed, a pirated movie included odd stripes or spots if it had been recorded while the LEDs were on. It might be possible to use the LEDs to flash the date and time on the movie screen. The information would then appear in the illegal recordings. Theatre owners or police might use the information to track down the pirates.
Cutting down on piracy might get more people into theatres to watch the real movie instead of an illegal copy. Six out of every ten films now produced aren't profitable. They don't make enough money to recover how much is spent to make and market the films. Such a poor payback can discourage film-makers from producing anything but the types expected to become blockbuster hits. It might also keep smaller theatres from showing a wider variety of movie types.
5. From what Hadaia says in Paragraph 2， we can infer that .
A. most people spend less money on pirate movies
B. the pirates don't have to pay for the movie tickets
C. theatre owners will increase the price of movie tickets
D. she strongly criticizes those who video movies in the theatre
6. Infrared lights are put on the movie screens to .
A. adjust the brightness of the movie screens
B. make sure the images of movies are dark
C. protect the eyesight of viewers in the darkness
D. make illegal copies of movies unpleasant to see
7. What is the correct order of the steps in Hadaia'.s test?
a. She projected pictures on the screen.
b. She used cameras to record the pictures.
c. She turned on the LEDs placed behind the screen.
d. She made a special box with a movie screen inside.
A. b a c d B. d c a b
C. d b a c D. bead
8. According to the last paragraph, we can know that
A. forty per cent of movies now are profitable
B. small theatres often choose to show low-cost movies
C. more and more people go to theatres to fight movie piracy
D. film-makers prefer to produce ordinary movies than blockbusters
七年级上册英语周报外研2020至2021期末检测卷答案试题答案
【文章大意】本文讲述了盗版电影严重损害了人们的利益，Hadaia想到一个方法来帮助减少盗版。
D 推理判断题。根据第二段的'"It's unfair for people to pirate movies…"可知，Hadaia认为盗版电影对于人们来说是不公平的，故选D项。
D 推理判断题。根据第三段"Theatre owners could place small infrared lights on their movie screens. The lights would not disturb people watching the movie. It would, however, distort the recordings made by many types of cameras.，，可知， 电影院会向屏幕上投射红外线，观众不会受到影响，但会使许多录像机受到影响，故是为了杜绝盗版，选D项。
B 细节理解题。根据第四段的"To test her idea, Hadaia built a box with a movie screen inside.，，可知，为了检验一下她的想法，这是第一步；再根据"During some tests, she also turned on light emitting diodes (发光二极管)，or LEDs."可知，这是第二步，再放映电影，再录下来，故选B项。
A 推理判断题。根据最后一段"Cutting down on piracy might get more people into theatres to watch the real movie instead of an illegal copy. Six out of every ten films now pro?duced aren't profitable."可知，为了打击盗版，60%的电影是不盈利的，即40%的电影是盈利的。故选A项
