The Moon and most artificial satellites travel around the Earth in elliptical paths．A: wavesB: orbitsC: voyagesD: flights
The Moon and most artificial satellites travel around the Earth in elliptical paths．
A: waves
B: orbits
C: voyages
D: flights
B: orbits
C: voyages
D: flights
参考解析
解析：句意：月亮和人造卫星都以椭圆轨道绕地球旋转。画线单词path意为“路径”。 wave意为“波浪”;orbit意为“轨道”;voyage意为“航海”;flight意为“航班”。根据画线单词意思，只有orbit与其意义相近，可进行替换。因此B项正确。
相关考题：
The teacher said that the moon _______ round the earth. (A) was moving(B) moved(C) would move(D) moves
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单选题Neap tides occur（）.AAt the start of spring，when the Sun is nearly over the equatorBOnly when the Sun and Moon are on the same sides of the Earth and are nearly in lineCWhen the Sun and Moon are at approximately 90° to each other，as seen from the EarthDWhen the Sun，Moon，and Earth are nearly in line，regardless of alignment order
单选题Neap tides occur only（）.Aat a new or full MoonBwhen the Sun，Moon，and Earth are in lineCat approximately 28-day intervalsDwhen the Moon is at quadrature
单选题Priming of the tides occurs（）.Aat times of new and full MoonBwhen the Earth，Moon，and Sun are lying approximately on the same lineCwhen the Moon is between first quarter and full and between third quarter and newDwhen the Moon is between new and first quarter and between full and third quarter
单选题（）is a space system using one or more artificial earth satellites.ASatellite networkBSatellite linkCGMDSSDSatellite system
单选题ATrips to the moon.BTrips in the moon’s orbit.CTrips within the earth’s orbit.DTrips to the Mars.
单选题Opposition occurs when（）.Athe Sun，Earth，and Moon are at right anglesBthe Sun's declination is 0°and is moving southCan inferior planet is at the maximum angle to the line of sight to the SunDthe Earth is between a planet and the Sun
单选题Spring tides occur（）.Aat the start of spring，when the Sun is nearly over the equatorBonly when the Sun and Moon are on the same side of the Earth and nearly in lineCwhen the Sun and Moon are at approximately 90°to each other as seen from the EarthDwhen the Sun，Moon，and Earth are nearly in line，in any order
单选题Perihelion is the point where the Sun（）.Ais nearest to the EarthBis farthest from the EarthCis on the opposite side of the Earth from the MoonDand Moon and Earth are in line
单选题According（）travel agents, the growth trend in travel is the half-week sneak-away built around a weekend.AatBonCtoDin
单选题Aphelion is the point where the Sun（）.Aand Moon and Earth form a right angleBand Moon and Earth are in lineCcrosses the celestial equatorDis farthest from the Earth
单选题Geostationary satellites are the artificial satellites which（）.Aalways move slowlyBare in one place onlyCsometime move sometime don‟t moveDare synchronizing with the movement of the earth
单选题Which statement about satellite navigation is TRUE? （）AWhile a fix can be generated by signals received from two satellites，three satellites are necessary for reliable accuracyBThe satellites are in equatorial orbits around the earth about 60°of longitude apartCThe satellite navigation system determines a fix by measuring the doppler shift of the radio signals from the satelliteDThe ship's receiver cannot begin processing data until the antenna locks onto the satellite and starts continuous tracking