Unit 2 Stay Healthy Grammar Focus(4a～4d)练习2025-2026学年人教版八年级下册英语

人教版八年级下册英语Unit 2 Stay Healthy Grammar Focus(4a~4d)练习 Ⅰ. 根据句意用所给单词的适当形式填空。 1. The doctor said the medicine might cause a slight _______________ (stomach) ache, but it will pass soon. 2. Please put the plates, spoons and _______________ (fork) on the table before the guests arrive. 3. It is important _______________ (wash) your hands frequently to prevent the spread of viruses. 4. The _______________ (strong) of the wind increased during the night, blowing down some trees. Ⅱ. 选择填空。 ( ) 1. — I’m sorry I forgot to bring your book. — It doesn’t matter. It completely _______________ my mind until you mentioned it just now. A. crossed B. slipped C. left D. changed ( ) 2. — My room is so messy that I can’t find anything. — You’d better _______________ your old toys and books. Don’t keep things you don’t need. A. clear out B. look after C. give up D. take off ( ) 3. The story of “Yue Fei’s mother tattooing characters on his back” shows a mother’s hope for her son to serve the country with _______________. A. happiness B. loyalty C. wealth D. freedom ( ) 4. — Tom finally won the first prize in the speech contest after practicing for months. — That proves the saying: “_______________.” A. Actions speak louder than words B. No pain, no gain C. Better late than never D. East or west, home is best Ⅲ. 根据短文内容，用方框中所给单词的适当形式填空。 ( should / you / could / have / if / tooth ) Here is some advice for keeping your teeth healthy. If you often 1. _______________ a toothache, it might be because you eat too much sugar. Sometimes, when you brush your 2. _______________, make sure you do it for at least two minutes. Eating hard candies can hurt your teeth, so 3. _______________ try to eat fewer sweets. You 4. _______________ also use dental floss (牙线) to clean between your teeth. And 5. _______________ you find a black spot on your tooth, go to see a dentist immediately. Finally, remember that taking care of 6. _______________ teeth is taking care of your whole body. Ⅳ. 综合填空 Leo used to be a “couch potato”. He spent most of his free time 1. _______________ (lie) on the sofa watching TV and eating chips. He thought exercise was tiring and 2. _______________ (use). However, during a P.E. test, he ran only half a lap before he felt out of 3. _______________ (breathe). His face turned red, and his legs felt like lead. His friend, Sarah, invited him to join a morning running club. “Running is boring!” Leo complained. But Sarah smiled and said, “Just try it for one week. You 4. _______________ (not lose) anything.” _______________ (reluctant), Leo agreed. The first morning was terrible. He woke up early and felt sleepy. But as he started running in the park, he saw the sun rising and heard birds singing. He felt a strange sense of 6. _______________ (free). By the end of the week, Leo noticed changes. His sleep became 7. _______________ (good) than before. He didn’t feel tired during class anymore. Even his skin looked clearer. “Wow, running is like magic!” he exclaimed. Two months later, Leo joined a 5-kilometer race. He didn’t win the first prize, but he finished the race with a big smile. He 8. _______________ (realize) that the hardest part was just starting. Now, he encourages his classmates to put down their phones and move their 9. _______________ (body). Leo often says, “Exercise isn’t about being perfect; it’s about making 10. _______________ (you) stronger and happier every day.” 参考答案与解析 Ⅰ. 词形转换 stomach 解析： stomach ache 是固定搭配，意为“胃痛”，此处用名词作定语修饰 ache，无需变形（或者填 stomach 本身作为名词修饰名词）。注：有些教材也接受 stomachache 作为一个词，但题目给了括号提示词，通常填原形或复数，此处 stomach ache 分开写时 stomach 不变。 forks 解析： plates, spoons 都是复数，根据并列关系，fork 也应用复数 forks。 to wash 解析： It is + adj. + to do sth. 句型，不定式作真正的主语。 strength 解析： The ... of 结构中需填名词，strong 的名词形式是 strength (力量)。 Ⅱ. 单项选择 B 解析： slip one's mind 是固定短语，意为“被某人遗忘/某事从脑海中溜走”。cross one's mind 通常用于否定句 never crossed my mind (从未想过)，但这里语境是“直到你提起我才想起来”，说明之前忘了，用 slipped 更贴切“遗忘”的动作；若选 A crossed 通常指“闪过念头”，搭配 never 表示“完全没想过要去做”，语境上也通，但 slipped 强调“忘记带书”这个事实更符合 forgot 的前文。修正： 结合前句 I forgot，回答 It slipped my mind (我忘得一干二净) 是最地道的对应。 A 解析： clear out 意为“清理、清除”，符合语境“清理旧玩具和书”。 B 解析： 岳母刺字的故事体现的是“精忠报国”，即 loyalty (忠诚)。 B 解析： 经过几个月的练习终于获奖，对应谚语 No pain, no gain (一分耕耘，一分收获)。 Ⅲ. 短文填空 have (If you often have a toothache 如果你经常牙痛) teeth (brush your teeth 刷牙，tooth 的复数是 teeth) you (so you try to... 所以你应该尝试... 此处填主格代词，或者结合语境可能是 should 的位置，但看选项分布： 重新梳理选项逻辑： have (have a toothache) teeth (brush your teeth - 注意题目给的是 tooth，需变复数) -> 题目要求用适当形式 should / could (情态动词位置) -> 根据句意 "so you should try" could / should -> "You could also use..." if -> "If you find..." your -> "taking care of your teeth" (题目给的是 you，需变形容词性物主代词) 最终填空顺序： have teeth (tooth -> teeth) should (或者 could，表示建议) could (或者 should) if your (you -> your) Ⅳ. 综合填空 lying 解析： spend time (in) doing sth.，lie 的现在分词是 lying。 useless 解析： 他认为运动很累且“无用”，tiring 是负面形容词，and 连接并列成分，故填 use 的形容词否定形式 useless。 breath 解析： out of breath 是固定短语，意为“上气不接下气”，breathe 是动词，名词是 breath。 won't lose / will not lose 解析： 直接引语中，根据语境“你试一周，不会失去什么”，用一般将来时否定形式。 Reluctantly 解析： 修饰整个句子或动词 agreed，需用副词。reluctant (不情愿的) -> Reluctantly。 freedom 解析： a sense of ... 后接名词，free 的名词是 freedom (自由)。 better 解析： 后面有 than，说明要用比较级，good 的比较级是 better。 realized 解析： 叙述过去发生的事情，用一般过去时 realized。 bodies 解析： classmates 是复数，对应的身体也应是复数 bodies。 yourself / yourselves 解析： make yourself stronger (让你自己更强)，主语隐含是 Exercise (it) 或者泛指，通常对听众说用 yourselves 或对个体说 yourself。结合语境 "making ... stronger"，填反身代词。若指代前面的 "you" (泛指)，填 yourself 或 yourselves 均可，通常单数泛指用 yourself。 学科网（北京）股份有限公司 $