21、血液中的细胞好像运输兵，负责运输吸入的氧气和产生的二氧化碳。
6、重新使用是指多次或用另一种方法来使用已用过的物品，它也是减少垃圾的重要方法。
答：水分和氧气是使铁容易生锈的原因。
9、物质的变化一般分为物理变化和化学变化。化学变化伴随的现象很多，最重要的特点是产生了新物质。物质发生化学变化的过程中一定发生了物理变化。
5、草蛉是蚜虫的天敌，七星瓢虫吃蚜虫，蜻蜓吃蚊子。
1、我们每天都要消耗食物和各种各样的生活用品，与此同时，也产生了许多垃圾。
12、放大镜和显微镜的发明，大大扩展了我们的视野，让我们走进微小世界，让我们看到了微生物和细胞。
答：说明米饭不是甜的，但米饭含有淀粉，在我们咀嚼的过程中发生了变化，变得有甜味了。
4、咀嚼馒头的外皮也可以感觉到甜味吗？为什么？
5、草蛉是蚜虫的天敌，七星瓢虫吃蚜虫，蜻蜓吃蚊子。2017年普通高等学校招生全国统一考试（江苏卷）
英语。第ⅰ卷。
第一部分听力（共两节，满分20分）
做题时，现将答案标在试卷上，录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共 5 小题；每小题 1 分，满分 5 分）
听下面 5 段对话，每段对话后有一个小题。从题中所给的 a、b、c 三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. what does the woman think of the movie?
a. it’s amusingb. it’s excitingc. it’s disappointing.
2. how will susan spend most of her time in france?
a. tr**eling aroundb. studying at a school.
c. looking after her aunt.
3. what are the speakers talking about?
a. going outb. ordering drinks.
c. preparing for a party.
4. where are the speakers?
a. in a classroomb. in a libraryc. in a bookstore.
5. what is the man going to do?
a. go on internetb. make a phone call. c. take a train trip.
第二节（共15小题；每小题1分，满分15分）
听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的a、b、c三个选项中选出最佳选项。听每段对话或独白前，你将有时间阅读各个小题，每小题秒钟；听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第题。
6. what is the woman looking for?
a. an information office. b. a police station c. a shoe repair shop.
7. what is the town guide according to the man?
a. a brochureb. a news*****c. a map.
听第7段材料，回答第题。
8. what does the man say about the restaurant?
a. it's the biggest one around.
b. it offers many tasty dishes.
c. it's famous for its seafood.
9. what will the woman probably order?
a. fried fishb. roast chicken. c. beef steak.
听第8段材料，回答第10至12题。
10. where will mr. white be at 11 o'clock?
a. at the officeb. at the airportc. at the restaurant.
11. where will mr. white probably do at one in the afternoon?
a. receive a guestb. h**e a meeting. c. read a report.
12. where will miss wilson see mr. white?
a. at lunch timeb. late in the afternoon.
c. the next morning.
听第9段材料，回答第13至16题。
13. why is bili going to germany?
a. to work on a project. b. to study german.
c. to start a new company.
14. what did the woman dislike about germany?
a. the weatherb. the foodc. the schools.
15. what does bill hope to do about his family?
a. bring them to germany. b. le**e them in england.
c. visit them in a few months.
is the probable relationship between the speakers？
a. fellow-tr**elersb. colleaguesc. classmates.
听第10段材料，回答第17至20题。
did it rain last time in juárez？
a. three days agob. a month agoc. a year ago.
season is it now in juárez？
a. springb. summerc. autumn.
are the elderly advised to do？
a. take a walk in afternoon. b. keep their homes cool.
c. drink plenty of water.
is the speaker doing？
a. hosting a radio program. b. conducting a seminar.
c. forecasting the weather.
第二部分：英语知识运用（共两节，满分35分）
第一节：单项填空（共15小题；每小题1分，满分15分）
请阅读下面各题，从题中所给的a、b、c、d四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
21. many chinese brandstheir reputations over centuries, are facing new challenges from the modern market.
a. h**ing developedb. being developed
c. developedd. developing
22not for the support of the teachers, the student could not overcome her difficulty.
a. it were b. were it c. it was d. was it
23. locatedthe belt meets the road, jiangsu will contribute more to the belt and road construction.
a. why b. whenc. which d. where
24. the publication of great expectations, whichboth widely reviewed and highly praised, strengthened dickens’ status as a leading novelist.
a. isb. arec. wasd. were
25. working with the medical team in africa hasthe best in her as a doctor.
a. held outb. brought outc. picked out d. given out
26. we choose this hotel because the price for a night here is down to $20, half ofit used to charge.
a. that b. which c. whatd. how
27. he hurried home, never once looking back to see if he
a. was being followedb. was following
c. had been followedd. followed
28. in 1963 the un set up the world food programme, one of __purposes is to relieve worldwide starvation.
a. which b. it’sc. whose d. whom
29. only five years after steve jobs’ death, smart-phones defeatedpcs in sales.
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