Ⅰ.用所给词的适当形式填空
1.If we don't protect nature now, there (be) fewer animals in the future.
2.Unless you (work) hard, you cannot pass the exam.
3.He will get the chance quickly if he (reply) to the email in time.
4.If you switch off your lamp, the room (become) dark.
5.I will go to the theater if it (not rain) tomorrow.

I.1. will be 2. work 3. replies 4. will become
5. doesn't rain
易错警示 第1题易错填are。在含if引导的条件状语从句的主从复合句中，主句用一般将来时，从句用一般现在时。此处为there be句型的一般将来时，所以填will be。

【分析】本题为if引导的条件状语从句的时态应用题型，核心规则为“主将从现”（主句用一般将来时，从句用一般现在时），第1题还涉及there be句型的一般将来时结构。解题时需先判断句子结构为条件状语从句，再根据主句、从句的时态要求，结合主语的人称/数变化确定动词的正确形式。
【解析】1. 该句为if引导的条件状语从句，主句需用一般将来时，there be句型的一般将来时为“there will be”，故填will be；2. unless相当于if not，引导条件状语从句，从句用一般现在时，主语为you，动词用原形，故填work；3. if引导的条件状语从句，从句用一般现在时，主语he为第三人称单数，动词reply变第三人称单数形式replies，故填replies；4. if引导的条件状语从句，主句需用一般将来时，故填will become；5. if引导的条件状语从句，从句用一般现在时的否定形式，主语it为第三人称单数，借助助动词doesn't构成否定，动词用原形rain，故填doesn't rain。
【答案】I.1. will be 2. work 3. replies 4. will become 5. doesn't rain
【知识点】条件状语从句时态；there be句型；一般现在时动词变形
【点评】本题考查初中英语核心语法点——if条件状语从句的“主将从现”规则，结合there be句型的将来时、一般现在时的动词变形，题型基础且典型，需牢记规则并准确应用，易错点为第1题的there be将来时结构。
【难度系数】0.6

Ⅱ.根据要求完成句子，每空一词
6.Put on the glasses, or you won't see it clearly.（改为同义句）
you don't put on the glasses, you see it clearly.
7.We can't achieve our goals unless we take action at once.（改为同义句）
We can't achieve our goals we take action at once.
8.Climb to the top. You will enjoy the wonderful scenery.（合并为一句）
You enjoy the wonderful scenery to the top.

II.6.If; won't 7.if; don't 8.will; if you climb/won't; unless you climb

【分析】
本题考查英语条件句型的同义转换，核心是掌握祈使句与if、unless引导的条件状语从句的转换规则，需结合“主将从现”的时态要求分析句子逻辑：
1. 第6题：原句“祈使句+or+否定将来句”表否定条件，可转换为if引导的否定条件从句，主句用将来时否定；
2. 第7题：原句unless=if...not，直接替换连词并调整从句为否定形式即可；
3. 第8题：原句“祈使句+and+肯定将来句”表肯定条件，可转换为if引导的肯定条件从句，或用“否定将来句+unless否定从句”结构。
【解析】
6. 原句逻辑为“不戴眼镜→看不清”，转换为if引导的否定条件从句，主句用将来时否定，故填If；won't。
7. 原句unless=if...not，将unless替换为if，从句变为否定，故填if；don't。
8. 原句逻辑为“爬到顶→欣赏美景”，可转换为if引导的肯定条件从句（主句将来时，从句一般现在时），或用“否定将来句+unless否定从句”，故填will; if you climb（或won't; unless you climb）。
【答案】
II.6.If; won't 7.if; don't 8.will; if you climb/won't; unless you climb
【知识点】
条件状语从句、同义句转换、句型转换
【点评】
本题围绕初中英语核心的条件句型转换展开，考查学生对祈使句与if、unless引导的条件状语从句的转换规则掌握，是基础考点，需熟悉句型间的对应关系。
【难度系数】
0.6

Ⅲ.语法填空
阅读短文,在空白处填入一个适当的单词或括号内所给单词的正确形式。
My grandfather is 72 and last month my grandmother celebrated her 9. (seventy) birthday. I first noticed that they were having trouble 10. (remember) things when I went to their flat for dinner. My grandmother forgot a fish was in the oven and burnt it. Everyone forgets things easily sometimes, so I did not think much about it.
One day, we arranged to go out for dinner together. My mother 11. (tell) my grandfather to meet us at the train station. My grandparents were not there when we arrived. My mother phoned them and my grandfather said they were at home waiting for us. They knew we were going to have 12. meal together but they forgot about the meeting place. It turned out that they kept forgetting simple things. I then started thinking about what I can do to help my grandparents improve 13. (they) memory.
14. my memory is good, I still make a list of things I need to bring to school the next day before I go to bed. It is a good habit 15. (prevent) me from forgetting something. I told my grandparents to write more things down and share information with each other. By doing these things, my grandparents could help each other remember things.
I talked with the school nurse who often offered me great help. She told me that drinking water helps concentration (专心) and that can also make it much 16. (easy) to remember things. I wrote some advice on a piece of paper and I gave it to my grandparents.
By surfing the internet, I found out that staying 17. (mental) and physically active is another good way to improve memory. When I learned that they used to go dancing, I helped them find a dancing club nearby so they could have more physical exercise.
Since my grandparents began following my suggestions, their memory 18. (improve) a lot.

III.［语篇解读］ 本文主要讲述了作者注意到祖父母记忆力出现问题后，采取了一些措施帮助他们改善记忆力的故事。
9.seventieth 根据语境可知，此处指七十岁生日，应用序数词，故填seventieth。
10.remembering have trouble (in) doing sth.意为“做某事有困难”，为固定搭配，故填remembering。
11.told 根据arranged可知，此处的时态为一般过去时，谓语动词用过去式，故填told。
12.a have a meal为固定搭配，意为“吃饭”，故填a。
13.their 根据语境可知，此处表示提高他们的记忆力，应用形容词性物主代词their修饰名词memory。
14.Although/Though 根据语境可知，此处表示“尽管我的记忆力很好，我仍然会在睡觉前列出第二天上学需要携带的物品清单”，此处应用although/though引导让步状语从句，句首单词首字母应大写，故填Although/Though。
15.to prevent 分析句子结构可知，It为形式主语，真正的主语是动词不定式，故填to prevent。
16.easier 根据语境可知，此处表示“那也可以使记东西变得容易得多”，much后应用easy的比较级形式easier。
17.mentally 根据“physically active”可知，此处应用mental的副词形式mentally。
18.has improved 根据“Since my grandparents began following my suggestions”可知，主句的时态为现在完成时，结构为“have/has+动词的过去分词”，主语为their memory，助动词用has，improve的过去分词形式为improved。故填has improved。

【分析】本题为英语语法填空，需结合上下文语境、英语基础语法规则（固定搭配、时态、词性变化等）解题。具体思路：1. 第9题表达“七十岁生日”，需用序数词；2. 第10题考查固定搭配have trouble (in) doing sth，故用动名词；3. 第11题根据前文arranged的过去时态，谓语用一般过去式；4. 第12题考查固定短语have a meal；5. 第13题修饰名词memory，用形容词性物主代词；6. 第14题根据语境的让步关系，用Although/Though引导从句；7. 第15题It作形式主语，真正主语为不定式；8. 第16题much修饰比较级，用easy的比较级；9. 第17题修饰形容词active，用副词；10. 第18题since引导的从句，主句用现在完成时。
【解析】9. 此处表示“七十岁生日”，应用序数词seventieth，故填seventieth。10. have trouble (in) doing sth是固定搭配，意为“做某事有困难”，故填remembering。11. 根据arranged可知，此处时态为一般过去时，tell的过去式为told，故填told。12. have a meal是固定搭配，意为“吃饭”，故填a。13. 此处修饰名词memory，应用形容词性物主代词their，故填their。14. 此处表示“尽管我的记忆力很好，我仍会列清单”，需用Although/Though引导让步状语从句，句首首字母大写，故填Although/Though。15. It为形式主语，真正的主语是动词不定式短语，故填to prevent。16. much后需用形容词比较级，easy的比较级为easier，故填easier。17. 此处修饰形容词active，应用副词mentally，故填mentally。18. since引导的时间状语从句用一般过去时，主句需用现在完成时，主语their memory为单数，故用has improved。
【答案】9. seventieth 10. remembering 11. told 12. a 13. their 14. Although/Though 15. to prevent 16. easier 17. mentally 18. has improved
【知识点】固定搭配、动词时态、词性转换
【点评】本题为英语语法填空题型，考查学生对基础语法知识的综合运用能力，需结合语境和语法规则逐一分析，是常见的基础题型，难度适中。
【难度系数】0.6