Object clauses
I think 1. the best way is to do maths problems.
I wonder 2. you could help me.

I want to know 3. he comes from.
I want to know 4. he was late this morning.

1. that 2. if/whether 3. where 4. why

【分析】这道题考查宾语从句引导词的选择，需结合主句动词的含义、从句的语境及句子成分确定引导词：1. 主句是表观点的think，从句为陈述事实，用that引导；2. I wonder后接表“是否”的不确定情况，用if/whether；3. 从句缺地点状语，用where；4. 从句缺原因状语，用why。
【解析】1. 当主句为think等动词，宾语从句是陈述内容且不缺成分时，用that引导宾语从句，故填that；2. I wonder表示“想知道”，后接表“是否”的宾语从句，用if或whether引导，故填if/whether；3. 从句中he comes from后需地点状语，用where引导，故填where；4. 从句中he was late后需原因状语，用why引导，故填why。
【答案】1. that 2. if/whether 3. where 4. why
【知识点】宾语从句引导词、疑问词宾语从句
【点评】本题围绕宾语从句引导词的基础用法展开，需掌握不同语境下引导词的选择规则，是初中英语核心基础知识点。
【难度系数】0.3

Ⅰ. 选词填空:用 that/whether/if 填空
1. I don't believe online classes will take the place of school education.
2. I'm not sure I can finish the work by myself on time, but I'll have a try.
3. Last night my mother said she would take me to the history museum.
4. They worried they could learn these skills.
5. —Do you know there will be a concert in the theatre next Saturday?
—Really? I'm looking forward to it.

1. that 2. whether/if 3. that 4. whether/if 5. that

【分析】首先明确that、whether/if在宾语从句中的用法：that用于引导陈述事实的宾语从句，无实际含义；whether/if用于引导表“是否”含义的宾语从句，常搭配不确定的语境。再逐一分析句子：1. 从句陈述线上课取代学校教育的事实，用that；2. 主句“I'm not sure”表不确定，需用表“是否”的whether/if；3. 从句是妈妈说的陈述内容，用that；4. worried后表担心是否能学技能，用whether/if；5. 从句陈述剧院有音乐会的事实，用that。
【解析】1. 宾语从句为陈述句，故用that引导；2. 主句“I'm not sure”表不确定，需用表“是否”的whether或if引导宾语从句；3. 宾语从句为陈述句，故用that引导；4. 主句“worried”后表担心是否能学技能，需用表“是否”的whether或if引导；5. 宾语从句为陈述剧院有音乐会的事实，故用that引导。
【答案】1. that 2. whether/if 3. that 4. whether/if 5. that
【知识点】宾语从句引导词（that、whether/if的用法）
【点评】本题考查宾语从句中that与whether/if的基础用法，需结合主句语境判断引导词，属于英语基础考点，难度较低。
【难度系数】0.3

Ⅱ. 完成句子:用所给单词的适当形式填空
1. The (dictionary) show that some English words have more than one pronunciation.
2. You should (active) face difficulties in your studies instead of giving up.
3. Some people feel bored when they are reading, but I really find it rather (enjoy).
4. Many English ______ (learn) find it hard to use grammar rules ______ (correct) at the beginning.
5. It's good for us to read English every morning. But don't read too . (loud)

1. dictionaries 2. actively 3. enjoyable 4. learners; correctly 5. aloud; loudly

【分析】
需根据句子结构判断所需词性，结合所给单词的形式变化规则解题：1. 句中谓语show为原形，主语需用复数，故将dictionary变复数；2. 修饰动词face需用active的副词形式；3. find sth + adj结构需用enjoy的形容词；4. many后接可数名词复数（指学习者），修饰动词use需用correct的副词；5. read aloud是固定搭配，修饰动词read用loud的副词。
【解析】
1. 谓语动词show是原形，说明主语为复数，dictionary的复数形式是变y为i加es，故填dictionaries；
2. 此处修饰动词face，需用active的副词形式，故填actively；
3. 句中是find sth + 形容词的结构，需用enjoy的形容词形式，故填enjoyable；
4. 第一空many后接可数名词复数，learn的名词“学习者”是learner，复数为learners；第二空修饰动词use，需用correct的副词形式，故填learners; correctly；
5. read aloud是固定短语，第一空填aloud；第二空修饰动词read，用loud的副词形式，故填aloud; loudly。
【答案】1. dictionaries 2. actively 3. enjoyable 4. learners; correctly 5. aloud; loudly
【知识点】词性转换、名词复数、副词用法
【点评】本题考查英语基础的词性转换、名词复数及副词用法，涉及固定搭配，侧重学生对句子中词性功能的理解，难度适中。
【难度系数】0.6