课时训练(四) Units 5-8(七下)(限时:30分钟)Ⅰ.单项选择1.—Yuan Longping, a famous Chinese scientist, is now doing research on sea rice.—If farmers start planting rice in salty water, China’s food supply will surely rise. A.can B.can’t C.must D.mustn’t 2.— you the Chinese Culture Festival in the Central Square? —Yes. It was really a great success.A.Are; attending B.Will; attend C.Do; attend D.Did; attend3.—Could I smoke here?—Sorry. I am afraid you . Look at the sign “No smoking”! A.couldn’t B.needn’t C.can’t D.won’t 4.— fresh air it is now! —Yes. go out for a walk. A.How; Let B.What a; Let’s C.What; Let’s D.How; Let us5.Oh, you are here. I you came back. A.don’t know B.didn’t know C.haven’t known D.won’t know6.Learning is a lifelong journey because it brings every day. A.new something B.something new C.anything new D.new anything7.—What’s your problem? —I have trouble these words in English. A.say B.sayingC.to speak D.speaking8.My sister is happy to our parents. A.hear from B.hear ofC.come from D.come over 9.[2019·襄阳]—Does the old man have to his wife? —Yes. They have no children to depend on.A.look after B.look forC.look up D.look like10.[2019·徐州]—Sorry, . What do you mean by saying “look out”? —I asked you “to be careful”, not “to look outside”. A.I can’t hear you B.I can’t see clearlyC.I don’t notice you D.I don’t follow youⅡ.[2019·新疆]完形填空 One day a little mouse was thirsty. She looked everywhere for water to drink. She climbed up onto a table. And she saw a bottle on the table. The mouth of the bottle was 11 . The little mouse looked inside the bottle. “Aha, there is 12 milk in it. That’s great!” She went into it and began to drink. She drank and drank. After a moment she had drunk enough. Her stomach was too big and she couldn’t come 13 the bottle. She cried for help. Just then a cat came up to the table. When the cat 14 the cry, he jumped onto the table so 15 , and said, “You’ll be my nice lunch!” The little mouse was very clever and she 16 for a moment and said, “Brother Cat, you mustn’t roll the bottle.” “ 17 ?” asked the cat.“I would get dizzy(头晕目眩的),” said the mouse. The cat said that he would let her 18 soon. So he began to roll the bottle. Suddenly the bottle fell down onto the floor and broke into 19 . The little mouse ran 20 as fast as she could. When the cat jumped off the table and ran after her, the mouse had already gone into her home. ( )11.A.big B.strongC.weak D.small( )12.A. little B.some C.few D.a few( )13.A. into B.up C.out of D.down( )14.A.heard B.saw C.tasted D.looked( )15.A.happy B.honest C.honestly D.happily( )16.A.ate B.thoughtC.drank D.took( )17.A.When B. Where C.Why D.How( )18.A.dying B.dieC.to die D.died( )19.A.boxes B.glasses C.pieces D.cakes( )20.A.away B.inC.to D.atⅢ.[2019·凉山州]阅读理解 At about 6 p.m. on Saturday, a forest fire broke out in a village in Mu Li, Liangshan. The local government acted quickly and 689 people were sent to put out the fire. Fire groups were fighting the fire on Sunday when a sudden change of wind direction caused “a huge fireball”. 27 firefighters and 3 locals lost their lives. Most of the firefighters were in their twenties and two of them were less than twenty, though several were older. Their death touched our hearts all over China. There is reason enough to regard them as heroes. President Xi Jinping, Premier Li Keqiang and many other leaders cared for the heroes and expressed condolence to the heroes’ families and friends. We should remember all the heroes and their spirit, bravery showed in fighting the fire. As the old saying goes: a nation is lost without its memories. Forest fires are common in spring, and rules to prevent fires have come out in Liangshan. Many experts believe there are some reasons for forest fires. The first reason is weather change. Warmer and drier weather leads to dangerous fire conditions. Next, lightning is another reason. Dry grass and trees easily catch fire. Finally, hot winds add to the possibility of forest fires. The wind spreads a fire quickly. However, 90% of forest fires are caused by humans, according to a report. Forest fires can burn at over 900℃ and reach heights of more than 50 meters. Forest fires can move at speeds of up to 23 kilometers an hour, burning everything—trees, brush, homes, even people… Experts remind people to be careful during the holiday of Qingming, known as Tomb Sweeping Day. Millions of people travel to their homes during the holiday, so the risks of fires in mountains are high. In order to keep the heart-broken lesson in mind, we should stop fires from happening again.21.According to the passage, which of the following is NOT true? ( )A.All the firefighters who lost their lives were in their twenties.B.About 700 people were sent to put out the fire.C.A sudden change 。