题目

下列有关水分子的叙述，正确的是 A．受热时水分子体积逐渐变大      B．降温时水分子的化学性质发生改变 C．反应时构成水分子的原子种类发生改变 D．电解水生成氢气和氧气说明水分子是可分的 答案：DHello, I’m John. I come from America. I like _________ very much, because they always make me happy. Mother’s Day is _________ the second Sunday of May. It’s a day to _________ mothers. On that day, mothers usually receive flowers or cards from their _________. Fathers and children do the housework so that mothers can have a good rest._________ is on the fourth Thursday of November in my country. It’s a day _________ people give thanks for the harvest and _________ health. It’s also a time to return home_________ families and friends. Families usually get together and have a big dinner.Christmas Day comes on _________ 25th. It’s the most important festival in a year. People exchange (互换) gifts and visit friends.January 29th is a special day for me. It’s my birth date. Every year, my friends give me lots of birthday presents,____books, models and clothes.1.A. sports B. collections C. festivals D. games2.A. in B. on C. at D. for3.A. record B. help C. thank D. celebrate4.A. parents B. friends C. classmates D. children5.A. Children’s Day B. Teachers’ Day C. Thanksgiving Day D. The Spring Festival6.A. when B. where C. how D. what7.A. bad B. good C. rich D. poor8.A. see B. saw C. to see D. seeing9.A. December B. November C. October D. September10.A. at all B. for all C. such as D. so as