人教版九年级全册暑假同步练习Unit 6 When was it invented ？Section A1a-2d 含答案

中小学教育资源及组卷应用平台 中小学教育资源及组卷应用平台 中小学教育资源及组卷应用平台 中小学教育资源及组卷应用平台 中小学教育资源及组卷应用平台 Unit 6 When was it invented ？ Section A 1a-2d 一．被动语态练习 1、─Car_l,_are_ you going to Jack’s birthday party on Saturday? ─I will go there if I _am invited_(invite) .2-1-c-n-j-y 2. A ne_w_inte_rnational airport will be completed? in the city next year (complete)【来源：21cnj*y.co*m】 3. Your shoes _were worn__(wear) out and they needed _repairing_. (repair) 4. Kid_s_have_ to take many after-school classes. They　are pushed??hard to study for good grades. (push) 5. Hangzhou　is known _????as_t_he City of Silk. Tourists like shopping for silk there.(know) 6. An accident _happened_ on this road last week. (happen) 7. There w_ill_be_ fewer workers in factories because most work　will be done???by robots in the future. (do) 8.?The cak_es_in__the restaurant _tastes_(taste) better, so they _sells__well.(sell) 9. The books _were returned_ to the library the other day.(return)21cnjy.com 10. People should prevent rivers from _being polluted_.(pollute) 11. —Does she__like__singing English songs? —Yes. She is often heard _to sing_(sing) English songs in her room. 12. The cloth _washes__ easily (wash) 13. 100 cars_were produced_(produce) last year. 14. Usually each lesson _lasts_(last) an hour. 15. It is _thought__(think) that the turtles can live to be several years old. 16. I’ll have the bike _repaired_soon. (repair) 17. The radio _hasn't turned_ on yet.(not turn) 18. The book is well worth __reading__.(read) 19. In some countries, tea _is served_(serve) with milk and sugar.【出处：21教育名师】 20. I boug_ht_a_s_hirt yesterday and it__cost_me over 60 dollars. (cost)21教育名师原创作品 二．短文填空 School b_ackpac_ks _____(be) a hot topic in China recently.Some Chinese parents buy hard cover school backpacks from Japan,although they can be as _____ as 5,000 yuan.The backpack is popular because the hard cover is said _____(hold) books in place.This can help kids stay balanced and protect their spines (脊柱).But it turns out the bags can barely fit into Chinese desks. A good ba_ckpack_ is important for _____(child) health.“It can relieve (减轻) pressure from the spine and shoulders,” says Dr.Rob Danoff from the US.He also says students need a backpack that _____(make) for the child’s size.Cushioned (加垫的) backs and shoulder straps (带子) will help them avoid pain.Another choice is small roller bags,but some schools do not allow them because they may knock people over.【版权所有：21教育】 However,the _____(big) problem for school backpacks is that they are too heavy. In China,students have many textbooks and exercise books.The weight makes many kids suffer from side-banding (侧弯的) spines,said Hou.He suggests a backpack _____(be) no more than 15 percent of child’s body weight to avoid pain or injury.That _____ if a student weighs 50 kg,the backpack should be less than 7.5 kg. Parents _need_t_o make su ... ...