27. Please ______ the lights when you leave the classroom.
A. turn in B. turn up C. turn off D. turn out
26. -Why didn’t Alice come to the party last night?
-I don’t know ______.
A. why didn’t she B. why she didn’t C. why did she D. why she did
25. I usually go to school ______ bike, but sometimes I go to school ______ foot.
A. with; on B. on; by C. on; with D. by; on
24. Ted’s mother kept telling Ted not to tell lies, but ______ didn’t help.
A. which B. it C. she D. he
23. -Where is mom now?
-I’m not sure. She ______ be in the kitchen.
A. shall B. may C. need D. must
22. Shark is getting old and cannot jump as ______ as he did.
A. high B. higher C. highest D. much higher
第一节:单项填空(共15小题,每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
21.Teaching ______ child to cook will improve many of the skills that he or she will need later in ______ life.
A. /; the B. a; / C. a; the D. the; a
4、上海目前每年消耗煤铁4200多万吨,占全市能源总量的70%左右,其煤铁消耗量和消耗密度居全国大城市之首。超大量用煤不仅影响上海国际化大都市的形象,也给上海及周边地区带来了严重的环境问题。据有关部门测算,上海每年酸雨发生率为11%,江苏省为21%,杭州等等浙江省主要城市高达50%。假如这些地区用天然气代替煤炭,可减少90%以上的氮.硫氧化合物和98%以上的二氧化碳排放量。(8分)
(1)以煤炭为主的能源消费结构,产生的环境问题是什么?
(3分)
(2)上海煤炭的主要来源地是安徽淮南、淮北、江苏徐州、山西等地,其中山西大同的煤炭运往上海,经济合理的运输线路如何?
(2分)
(3)天然气的使用对上海等地区的意义有哪些?
(3分)
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