一、完形填空。Water cvers abut 70% f the Earth’s surface(表面). But why d we still say we are shrt f water? Because abut 97% f the water n the Earth _____1 sea water s we can’t drink r use it fr watering plants.1. A. is B. are C. was D. were
【點(diǎn)撥】考查主謂一致。百分?jǐn)?shù)修飾名詞作主語時(shí)，謂語動(dòng)詞用單數(shù)或復(fù)數(shù)要根據(jù)它所修飾的名詞的單復(fù)數(shù)來確定。water不可數(shù)名詞，謂語動(dòng)詞用單數(shù)，這里用一般現(xiàn)在時(shí)。 故選A。
We can nly drink and use the 3% f the fresh water _____ 2 rivers and lakes.2. A. with B. by C. frm D. int
【點(diǎn)撥】考查介詞的用法。句意：我們只能飲用和使用來自河流和湖泊的3%的淡水。frm來自，符合題意。 故選C。
The fresh water n the Earth _____ 3 less and less. It’s time fr us t d smething. We shuld learn t save water in ur daily lives.3. A. t becme B. became C. becming D. is becming
_____ 4 water, we can:? Use less time t take shwers. Take a clck int the bathrm with yu. It can stp yu frm taking a shwer fr a lng time.4. A. Saves B. T save C. Save D. Saved
【點(diǎn)撥】考查不定式用法，不定式表示目的，為了節(jié)約用水，我們能…… 故選B。
? Turn the tap ff _____ 5 yu are brushing yur teeth.? Prtect the pipes in cld weather. Brken pipes culd waste as _____ 6 as 90 litres(升)f water a week.5. A. when B. after C. until D. befre6. A. many B. much C. less D. the mst
? Keep a cntainer(容器) f water in the fridge. _____ 7 yu dn’t have t cl the ht water under the tap.7. A. S B. Because C. As D. But
【點(diǎn)撥】考查連詞的用法。句意：冰箱里放一個(gè)盛水的容器。所以你不必把熱水放在水龍頭下面冷卻。
? Use a bwl fr _____ 8 vegetables instead f washing _____ 9 under the tap.8. A. wash B. washing C. washes D. washed9. A. it B. its C. they D. them
【點(diǎn)撥】考查代詞用法。這里指蔬菜，故選D。
? Water yur plants in the evening. This will be gd _____ 10 them and yu will use less water.10. A. fr B. in C. n D. at
【點(diǎn)撥】考查固定搭配。be gd fr 意為“對(duì)……有益”。
二、閱讀理解。11. What helps water change int vapur?A. The sun. B. The mn. C. The Earth. D. The star.
請(qǐng)同學(xué)們看《點(diǎn)撥訓(xùn)練》第58頁原文。
【點(diǎn)撥】根據(jù)原文第二段中句子The warm sun helps water change int vapur and rise up int the sky.可知答案。
12. Why can NOT we drink cean water?A. Because it is salty. B. Because we dn’t have much cean water.C. Because it is far away frm us. D. Because it is valuable.
【點(diǎn)撥】根據(jù)原文第三段中句子Ocean water has t much salt in it.可知答案。
13. What’s the prblem f the peple in the village in Suth America?A. It never rains in their village. B. Their drinking water was t dirty and nt safe.C. They didn’t knw hw t use rainwater. D. They were t pr t buy water.
【點(diǎn)撥】根據(jù)原文最后一段中句子Sme peple in a village in Suth America did nt have clean water. Their water was full f il and dirty things.可知答案。
14. The writer wrte the last paragraph mainly t tell us _____.A. many peple in the wrld are pr B. clean water is imprtant t pepleC. we shuld help pr peple D. we shuld save rainwater
【點(diǎn)撥】根據(jù)原文最后一段中句子All peple need clean water. They need it fr drinking, fr cking, and fr bathing.可知答案。
15. Where may we get the infrmatin?A. In a dictinary. B. In a strybk. C. In a ckbk. D. On the Internet.
【點(diǎn)撥】根據(jù)原文第一段句子Here I want t tell yu sme infrmatin abut water.可知本文主要講述了水的問題，因此這篇文章不會(huì)來自字典、故事書和烹飪書。
三、綜合填空。In the United States, we are lucky t have an easy way t get clean water—just ________16 turning n the tap.We wake up in the mrning, take a shwer, brush ur ________17, drink a cup f cffee and g ut t enjy a beautiful day.
imprtant, learn, water, drink, much, where, need, tth, by, r
Water is a (n) _________18 part f ur daily lives and we use it fr different purpses(目的), but d we really understand hw ________19 we use?Each American(美國的) family uses mre than 300 gallns (加侖) f ________ 20 every day at hme. Abut 70% f the use ccurs (發(fā)生) indrs.
Water is als imprtant in ur lcal cmmunities (當(dāng)?shù)厣鐓^(qū)). Withut water there wuld be n lcal business ________ 21 factries. Schls, parks, and swimming pls all ________ 22 lts f water.
________ 23 des all the water cme frm? It starts ut as rain r snw and flws int ur lcal lakes, rivers and streams. Yu can ________ 24 mre abut water in yur cuntry, fr example, hw peple prtect water and where yur lcal ________ 25 water cmes frm.
四、任務(wù)型閱讀：閱讀下面短文, 根據(jù)短文內(nèi)容, 完成下列各題。 26. What is there in all water? There is sme _________.
【點(diǎn)撥】根據(jù)原文第二段中句子There is sme salt in all water.可知答案。
27. What stays in the cean water when it evaprates? _________stays in the cean water.
【點(diǎn)撥】根據(jù)原文第二段中句子Salt cannt evaprate. It stays in the ceans.可知答案。
28. Hw much salt is in the cean water? Abut _________f salt is in the cean water.
【點(diǎn)撥】根據(jù)原文第三段中句子There is abut 3. 5% f salt in the cean water.可知答案。
29. Why is the Dead Sea salty?Because the water __________but the salt cannt.
【點(diǎn)撥】根據(jù)原文最后一段中句子Sme f the water leaves the lakes. It evaprates, but the salt cannt. These lakes are very salty.可知答案。

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