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题型:阅读理解 题类:模拟题 难易度:普通

四川省遂宁市2020届高三上学期英语第三次联考试卷

阅读理解

    An experimental cleanup device called RemoveDEBRIS has successfully cast a net around a dummy (仿真的) satellite, imitating a technique that could one day collect spaceborne garbage.

    The test, which was carried out this week, is widely believed to be the first successful demonstration of space cleanup technology, experts told CNN. And it symbolizes an early step toward solving what has already been a critical issue: junk in space.

    Millions of pieces of junk are turning around in orbit the result of 50 years of space travel and few regulations to keep space clean. At orbital speeds, even a small bit of paint crashing with a satellite can cause critical damage.

    Various companies have plans to send thousands of new satellites into low-Earth orbit, already the most crowded area.

    The RemoveDEBRIS experiment is run by a company and researchers led by the U. K.'s Surrey Space Center and includes Airbus, Airbus-owned Surrey Satellite Technology Ltd. and France's ArianeGroup.

    Guglielmo Aglietti, the director of Surrey Space Center, said that an operational version of the RemoveDEBRlS technology would cast a net that remains fastened to the main satellite so the debris can be dragged out of orbit. It could target large pieces of junk, including dead satellites up to 10 meters long.

    The RemoveDEBRIS satellite will conduct a few more experiments in the coming months, including testing navigation features that could help guide the satellite to a specific piece of debris.

Jonathan McDowell, an astrophysicist at the Harvard-Smithsonian Center for Astrophysics, said the success of this week's experiment was exciting, but he cautioned against "over- publicizing" it.

    There are still enormous barriers to clear before operational cleanup tasks are underway, he said, and the most discouraging is figuring out how to fund such projects.

    Aglietti, the Surrey professor who helped lead the RemoveDEBRIS project, said "The challenge will lie in persuading the relevant authorities to sponsor these tasks." Aglietti said he hopes RemoveDEBRIS will conduct a few cleanup tasks per year, targeting the largest pieces of junk in the most crowded orbits.

(1)、What is the use of the RemoveDEBRIS satellite?
A、Demonstrating space technology. B、Imitating a developing technique. C、Collecting wastes existing in space. D、Symbolizing great progress in space.
(2)、How does the RemoveDEBRlS satellite work?
A、By throwing a net to take the junk from orbit. B、By fastening it to the main satellite tightly. C、By dragging satellites up to 10 meters long. D、By targeting large pieces of junk carefully.
(3)、What does the underlined word "sponsor" in the last paragraph probably mean?
A、Accomplish. B、Support. C、Oppose. D、Provide.
(4)、What's the best title for the text?
A、The RemoveDEBRIS Project Is Perfect B、How RemoveDEBRIS Is Invented in the Lab C、Why the RemoveDEBRIS Satellite Is Invented D、Satellite Collects Space Junk for the First Time
举一反三
阅读理解

    Doing well in high school prepares students for life in college and beyond, so achieving student success is important. High school students learn valuable information from class lectures and homework, and by asking for help when it is needed. Being prepared for tests and engaging in school activities can help a student to achieve success in high school.

    Complete any homework you are assigned on time. Then, if you need help understanding a concept you will have plenty of time to get help.

    Create a study area in your home. This can be a quiet bench outside or a seating area in your room. If you like to listen to music while studying, listen to classical or relaxing music. Be sure to have plenty of lighting in the area to read your textbook or notes.

    Keep a schedule. If you have extra-curricular activities like sports or school meetings, make sure to schedule your homework and study time around them. Keeping a schedule will allow you to get better grades while they are having fun in high school.

    Eat breakfast. Having breakfast each morning before school will give you energy and brain function to pay better attention in class. Eat snacks during study sessions to keep alert and focused on your work.

    Create a study group to help fellow high school students and get help if you need it. Studying with others will help reinforce concepts and information, and if you need help there will always be someone there to help you before you get behind in your studies.

    Set up after-school hours with your teacher if you need extra tutoring. Visiting a teacher for one-on-one time before a test will help you nail down those last few concepts you need help with.

阅读理解

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