三、从方框中选择适当的单词或短语并用其正确形式填空。每个单词或短语限用一次。
draw on, expert, disaster, download, die, do an experiment, dream of, do business, disadvantage, danger
1. That sign is to warn people of ahead, so please stay away.
2. In the face of , people often help each other, which shows the goodness of human nature.
3. Honesty is very important for . It can help you win customers' trust.
4. He spent the whole afternoon in the lab .
5. Although online learning is convenient, it has the of lacking face-to-face communication.
6. He an e-book from the internet and planned to read it during the holiday.
7. I travelling around the world and exploring different cultures and places when I was young.
8. Some medical will come to our school to give us a talk about health.
9. The writer his travel experiences for inspiration and created his stories.
10. The brave hero in the story
while he was saving his friends.

1. danger 2. disaster 3. doing business 4. doing an experiment 5. disadvantage 6. downloaded 7. dreamed of/dreamt of 8. experts 9. drew on 10. died

1. 固定搭配warn sb. of sth. 意为“警告某人某事”，结合后文“请远离”的语境，可知此处表示前方有危险，填名词danger。
2. 固定搭配in the face of 意为“面对”，结合“人们互相帮助展现人性善意”的语境，此处表示面对灾难，填名词disaster。
3. 介词for后需接动名词形式，结合“赢得顾客信任”的语境，此处表示做生意，将do business变为动名词形式doing business。
4. 固定结构spend time doing sth. 意为“花费时间做某事”，结合“在实验室”的语境，此处表示做实验，将do an experiment变为doing an experiment。
5. 固定搭配have the disadvantage of... 意为“有……的缺点”，结合“线上学习缺少面对面交流”的语境，填名词disadvantage。
6. 后文并列的谓语planned为一般过去时，此处动作也发生在过去，结合“从网络下载电子书”的语境，将download变为过去式downloaded。
7. 时间状语when I was young表示过去的时间，句子用一般过去时，结合“小时候梦想环游世界”的语境，将dream of变为过去式dreamed of/dreamt of。
8. some后接可数名词复数，结合“来学校做健康讲座”的语境，此处表示医学专家，将expert变为复数形式experts。
9. 后文并列的谓语created为一般过去时，draw on意为“凭借、利用”，此处表示作家利用旅行经历获取灵感，将draw on变为过去式drew on。
10. 从句为过去进行时，主句动作发生在过去，结合“英雄救朋友时牺牲”的语境，将die变为过去式died。

一、根据要求完成下列各题，每空一词。
1. If there is no air, we will not live on earth. (对画线部分提问)
if there is no air?
2. It will rain tomorrow. We won't go for a picnic. (用if合并句子)
it tomorrow, we go for a picnic.
3. Study hard, or you will not get good grades. (改为条件状语从句)
you study hard, you get good grades.
4. Without rainforests, many beautiful plants and animals would die out. (改为同义句)
there are rainforests, many beautiful plants and animals would die out.
5. Little Bob will go to sleep if his mother tells him a story. (改为同义句)
Little Bob won't go to sleep his mother him a story.

1. What will happen
2. If; rains; won't
3. If; don't; won't
4. If; no
5. unless; tells

本题考查条件状语从句的相关用法，遵循条件状语从句“主将从现”的规则，同时结合特殊疑问句改写、同义句转换的知识点：
1. 画线部分是条件状语从句对应的主句结果，提问该内容需要表达“如果没有空气会发生什么”，三个空依次对应所需词汇。
2. 用if合并句子时符合条件状语从句“主将从现”规则：从句用一般现在时，主语it后的谓语动词用rains，主句用一般将来时的否定形式won't，句首填引导词If。
3. 祈使句+or的结构转换为条件状语从句，语义为“如果你不努力学习，你就不会取得好成绩”，依次填入对应词汇即可。
4. 介词without表“没有”，可以转换为条件状语从句If there are no...，语义保持一致。
5. 原句语义“如果妈妈给Bob讲故事，他就会去睡觉”，可同义转换为“Bob不会去睡觉，除非妈妈给他讲故事”，用unless引导条件状语从句，从句主语是第三人称单数，谓语动词用tells。

二、根据汉语意思翻译下列句子，每空一词。
1. 如果我有时间，我会多了解一下当地文化。
If I have time, I more about the local culture.
2. 如果你生病了，你必须去看医生。
you are ill, you go to the doctor.
3. 如果必要的话，尽早去拜访他。
, him as early as possible.
4. 除非你现在马上起床，否则你会错过校车。
You the school bus you get up right now.
5. 如果你知道答案，请举手。
Please your hand you know the answer.

1. will learn
2. If; must
3. If necessary; visit
4. will miss; unless
5. put up; if

本题考查八年级条件状语从句的核心语法规则（if/unless引导的条件状语从句遵循“主将从现”原则，祈使句场景下从句用一般现在时表将来），同时结合对应语义的固定短语搭配完成填空：
1. 本句符合条件状语从句“主将从现”规则，从句为一般现在时，主句用一般将来时，“了解”对应常用搭配learn about，因此填对应词汇；
2. 第一空引导条件状语从句表示“如果”填If，第二空表示“必须”填情态动词must；
3. 固定省略表达If necessary意为“如果必要的话”，后半句为祈使句，表示“拜访”用动词原形visit；
4. 本句用unless（除非）引导条件状语从句，遵循主将从现规则，主句表示“会错过”填will miss；
5. 固定短语put up one's hand意为“举手”，本句为祈使句，用动词原形开头，引导条件状语从句表示“如果”填if。