Page 24 - BILINGUAL SCORE A+SAINS 双语特优A+系列科学
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UPSR 特优 A+ 系列（中英双语） 科学  答案

                 30.  B  地球仪代表地球，乒乓球代表月球，而手                      39.  A
                       电筒代表太阳。当月球在太阳和地球之间
                       并排成一条直线时，就会发生日食。                          40.  D  叉车和起重机被用来搬运重物和减少人力
                        The globe represents the Earth, the ping-pong ball   需求。虽然如此，起重机才是被用来建造
                       represents the Moon and the torchlight represents   高耸的建筑物的机械。
                       the Sun. The solar eclipse occurs when the Moon           Forklifts and cranes are used to lift up heavy
                       is between the Sun and the Earth and all of them   loads and reduce manpower. However, crane is the
                       are aligned.
                                                                       machine used to construct high-rise buildings.

                 31.  A  影子和太阳的方向是相反的。在图 15 中，
                       树的影子在西方，所以太阳是在东方。                          试卷二 / Paper 2
                          双语特优A+系列科学, 版权所有·侵权必究

                        The shadow is in the opposite direction of the Sun.
                       In Diagram 15, the shadow of the tree is in the west,
                       so the Sun is in the east.                 1.  (a)  (i)  金属
                                                                           Metal
                 32.  D                                                 (ii)  报纸（接受任何合理的答案）
                                                                           Newspaper (Accept any reasonable answers)
                 33.  B  当发生日全食时，月球阻挡阳光照射向地
                       球。因此，四周会变黑暗，温度会下降。                           (b)  (i)  再循环
                        During the occurrence of a total solar eclipse, the              Recycle
                       Moon blocks the sunlight from reaching the Earth.
                       Hence, the surrounding areas turn dark and the          (ii)  这些是不能生物降解的废物，不能被
                       temperature decreases.                              微生物分解。
                                                                           These  are  non-biodegradable  waste
                                                                           materials which cannot be decomposed by
                 34.  B  北斗七星在北半球被用来确认耕种季节。
                        The Big Dipper is used as an indicator for the     microorganisms.
                       planting season in the northern hemisphere.
                                                                  2.  (a)  天蝎座
                 35.  C  天文望远镜是一种用来观察夜空中的星星                             Scorpio
                       的工具。
                        A telescope is a device used for observing the stars       (b)  北斗七星
                       in the sky at night.                             Big Dipper

                                                                    (c)  (i)  南十字座
                 36.  A  航空交通工艺的发展始于热气球（J），
                       接着是飞艇（M）、双翼飞机（K）和喷                                  Southern Cross
                       射式飞机（L）。                                         (ii)
                        The historical development of the technology in
                       air transport began with the hot air balloon (J),
                       followed by the airship (M), biplane (K) and jet
                       aircraft (L).

                 37.  C                                           3.  (a)

                 38.  D  当模型 Z 的高度增加至 20 cm，模型 Z 会
                       是最不平稳的模型。这是因为它的底部面
                       积小，并且比模型 Y 高。
                        When the height of model Z is increased to 20 cm,
                       model Z will be the most unstable model because       (b)  钟摆的摆动是有规律的。
                       its base area is small and is taller than model Y.          The pendulum swings uniformly.


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