<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
    <title>人教版 六年级下册 第六单元 重点单词单词选择题 - 亿文单词</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            background-color: #f5f7fa;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-top: env(safe-area-inset-top);
        }
        .header-nav {
            background-color: #ffffff;
            box-shadow: 0 1px 6px rgba(0,0,0,0.08);
            padding: 0 15px;
            position: sticky;
            top: 0;
            z-index: 100;
            padding-top: env(safe-area-inset-top);
        }
        .nav-container {
            max-width: 1000px;
            margin: 0 auto;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-logo {
            font-size: 18px;
            font-weight: 600;
            color: #3498db;
            letter-spacing: 1px;
        }
        .nav-menu {
            display: flex;
            gap: 28px;
        }
        .nav-menu a {
            text-decoration: none;
            color: #555;
            font-size: 14px;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: #3498db;
            font-weight: 600;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            cursor: pointer;
            padding: 8px;
        }
        .hamburger span {
            width: 22px;
            height: 3px;
            background: #555;
            border-radius: 2px;
        }
        .nav-menu-mobile {
            display: none;
            position: absolute;
            top: 56px;
            left: 0;
            width: 100%;
            background: #fff;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            flex-direction: column;
            z-index: 99;
        }
        .nav-menu-mobile.active {
            display: flex;
        }
        .nav-menu-mobile a {
            padding: 11px 20px;
            color: #555;
            text-decoration: none;
            font-size: 15px;
        }
        .nav-menu-mobile a.active {
            color: #3498db;
            font-weight: 600;
            background: #f8f9fa;
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }
        .main-wrap {
            flex: 1;
            padding: 24px 16px;
            max-width: 900px;
            margin: 0 auto;
            width: 100%;
        }
        .footer-info {
            background: white;
            border-top: 1px solid #eee;
            padding: 16px;
            text-align: center;
            color: #888;
            font-size: 13px;
        }
        .quiz-box {
            background: #fff;
            border-radius: 12px;
            padding: 28px 24px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            margin-bottom: 20px;
        }
        .status-bar {
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .quiz-title {
            font-size: 18px;
            font-weight: bold;
            color: #2c3e50;
            text-align: center;
            margin-bottom: 12px;
        }
        .status-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: #333;
        }
        .status-left {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .detail-link {
            color: #3498db;
            cursor: pointer;
            font-weight: bold;
        }
        /* 纵向布局：喇叭、单词、切换按钮上下居中 */
        .question-wrap {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin: 40px 0 30px;
            min-height: 180px;
        }
        .audio-btn {
            font-size: 32px;
            cursor: pointer;
            color: #3498db;
            user-select: none;
            transition: transform 0.15s, color 0.2s;
        }
        .audio-btn:active {
            transform: scale(0.92);
        }
        .audio-btn.playing {
            color: #28a745;
        }
        .question {
            font-size: 24px;
            font-weight: bold;
            color: #2c3e50;
            transition: opacity 0.25s;
            text-align: center;
            min-height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .question.hidden-word {
            opacity: 0;
        }
        .word-toggle-btn {
            padding: 5px 12px;
            border: 1px solid #3498db;
            color: #3498db;
            border-radius: 6px;
            cursor: pointer;
            font-size: 13px;
            user-select: none;
            white-space: nowrap;
        }
        .word-toggle-btn.hide {
            background: #3498db;
            color: #fff;
        }
        .options {
            display: grid;
            gap: 14px;
            margin-top: 20px;
        }
        .option {
            background: #f8f9fa;
            border: 1px solid #e1e4e8;
            border-radius: 10px;
            padding: 16px 20px;
            font-size: 16px;
            color: #333;
            cursor: pointer;
            transition: all 0.2s;
        }
        .option:hover {
            background: #eef5ff;
            border-color: #3498db;
        }
        .option.correct {
            background: #d4edda !important;
            border-color: #28a745 !important;
            color: #155724 !important;
        }
        .option.wrong {
            background: #f8d7da !important;
            border-color: #dc3545 !important;
            color: #721c24 !important;
        }
        .option.disabled {
            pointer-events: none;
        }
        .finish-box {
            text-align: center;
            padding: 40px 20px;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }
        .finish-title {
            font-size: 22px;
            color: #2c3e50;
            margin-bottom: 12px;
        }
        .btn-group {
            margin-top: 20px;
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .restart-btn, .wrong-btn {
            padding: 12px 24px;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
        }
        .restart-btn {
            background: #3498db;
        }
        .wrong-btn {
            background: #e67e22;
        }
        .result-summary {
            background: #fff;
            padding: 20px;
            border-radius: 12px;
            margin-top: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: relative;
        }
        .close-detail-btn {
            position: absolute;
            top: 15px;
            right: 15px;
            background: #e74c3c;
            color: white;
            border: none;
            border-radius: 50%;
            width: 28px;
            height: 28px;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .result-summary.no-close .close-detail-btn {
            display: none;
        }
        .result-summary h3 {
            margin-bottom: 15px;
            color: #2c3e50;
        }
        .result-stats {
            margin-bottom: 15px;
            font-size: 15px;
            color: #555;
        }
        .tab-bar {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
        }
        .tab {
            flex: 1;
            padding: 8px;
            text-align: center;
            background: #f1f1f1;
            border-radius: 6px;
            cursor: pointer;
        }
        .tab.active {
            background: #3498db;
            color: #fff;
        }
        .detail-list {
            max-height: 500px;
            overflow-y: auto;
        }
        .detail-item {
            padding: 12px;
            border-bottom: 1px solid #eee;
        }
        .detail-en {
            font-weight: bold;
            font-size: 16px;
        }
        .detail-correct {
            color: #28a745;
        }
        .detail-wrong {
            color: #dc3545;
        }
    </style>

<script>
    var _hmt = _hmt || [];
    (function() {
      var hm = document.createElement("script");
      hm.src = "https://hm.baidu.com/hm.js?382dae31ee0c7a603966bb74e6500436";
      var s = document.getElementsByTagName("script")[0]; 
      s.parentNode.insertBefore(hm, s);
    })();
    </script>

</head>
<body>

<header class="header-nav">
    <div class="nav-container">
        <div class="nav-logo"><img src="/img/logo.png" alt="亿文单词"></div>
        <nav class="nav-menu">
            <a href="/">首页</a>
            <a href="#" id="pcard">单词卡片</a>
            <a href="/m/rjb_6nx_u6_lx.html">单词默写</a>
            <a href="/t/rjb_6nx_u6_lx.html">单词听写</a>
            <a href="/h/rjb_6nx_u6_lx.html" class="active">释义选择</a>
            <a href="/b/rjb_6nx_u6_lx.html">有声词表</a>
            <a href="/files/xuanke.html">选课中心</a>
        </nav>
        <div class="hamburger" id="hamburger">
            <span></span><span></span><span></span>
        </div>
        <nav class="nav-menu-mobile" id="navMenuMobile">
            <a href="/">首页</a>
            <a href="#" id="mcard">单词卡片</a>
            <a href="/m/rjb_6nx_u6_lx.html">单词默写</a>
            <a href="/t/rjb_6nx_u6_lx.html">单词听写</a>
            <a href="/h/rjb_6nx_u6_lx.html" class="active">释义选择</a>
            <a href="/b/rjb_6nx_u6_lx.html">有声词表</a>
            <a href="/files/xuanke.html">选课中心</a>
        </nav>
    </div>
</header>

<div class="main-wrap">
    <div class="quiz-box" id="quizBox">
        <div class="status-bar">
            <div class="quiz-title">人教版 六年级下册 第六单元 重点单词选择题</div>
            <div class="status-row">
                <div class="status-left" id="statusBar"></div>
                <div class="detail-link" id="toggleDetail">查看详情</div>
            </div>
        </div>

        <div class="question-wrap">
            <div class="audio-btn" id="audioBtn">🔊</div>
            <div class="question" id="question"></div>
            <span class="word-toggle-btn" id="toggleWordBtn">隐藏单词</span>
        </div>

        <div class="options" id="options"></div>
    </div>

    <div id="finishBox" class="finish-box" style="display:none;"></div>

    <div id="resultSection" style="display:none;">
        <div class="result-summary" id="resultSummaryWrap">
            <button class="close-detail-btn" id="closeDetailBtn">×</button>
            <h3>📊 答题详情报告</h3>
            <div class="result-stats" id="resultStats"></div>
            <div class="tab-bar">
                <div class="tab active" data-tab="all">全部题目</div>
                <div class="tab" data-tab="wrong">仅错题</div>
            </div>
            <div class="detail-list" id="detailList"></div>
        </div>
    </div>

    <textarea id="wrongDataBox" style="display:none;"></textarea>

    <form id="wrongForm" action="/r/h.asp" method="post" style="display:none;">
        <input type="hidden" name="wrongData" id="wrongData">
        <input type="hidden" name="wjmName" id="wjmName">
    </form>
</div>

<footer class="footer-info">
    Copyright © 2026 亿文单词网 All Rights Reserved
</footer>

<audio id="correctAudio" preload="auto">
    <source src="/sound/ok.wav" type="audio/mpeg">

<audio id="wrongAudio" preload="auto">
    <source src="/sound/err.wav" type="audio/mpeg">

<script>
const wordList =[{"en":"English-Chinese dictionary","cn":"英汉词典","hx":["英汉词典","迎接；遇见；会面","火锅","浣熊"]},{"en":"shopping centre","cn":"购物中心","hx":["购物中心","小学生","上边，上面","迎接；遇见；会面"]},{"en":"shopping mall","cn":"大型综合商业中心","hx":["大型综合商业中心","农村，乡下","购物中心","（露天）体育场"]},{"en":"amazing","cn":"惊人的；神奇的","hx":["惊人的；神奇的","到达","衣柜","天鹅"]},{"en":"hot pot","cn":"火锅","hx":["火锅","迎接；遇见；会面","烤火鸡","三明治"]}]; 
</script>

<script>
const hamburger = document.getElementById('hamburger');
const navMenuMobile = document.getElementById('navMenuMobile');
hamburger.addEventListener('click', function () {
    navMenuMobile.classList.toggle('active');
});
document.querySelectorAll('.nav-menu-mobile a').forEach(item => {
    item.addEventListener('click', () => {
        navMenuMobile.classList.remove('active');
    });
});

const correctAudio = document.getElementById('correctAudio');
const wrongAudio = document.getElementById('wrongAudio');

let questions = [...wordList];
let current = 0;
let correctCount = 0;
let answered = false;
let startTime = Date.now();
let record = [];
let timer = null;
let currentWordAudio = null;
let hideWordMode = false;
const wrongDataBox = document.getElementById('wrongDataBox');

let wjm = window.location.pathname.substring(window.location.pathname.lastIndexOf('/') + 1).split('.')[0];
document.querySelectorAll('a').forEach(a=>{
    a.href = a.href.replace(/\$wjm\$/g, wjm);
});

const statusBar = document.getElementById('statusBar');
const questionEl = document.getElementById('question');
const optionsEl = document.getElementById('options');
const finishBox = document.getElementById('finishBox');
const quizBox = document.getElementById('quizBox');
const resultSection = document.getElementById('resultSection');
const resultStats = document.getElementById('resultStats');
const detailList = document.getElementById('detailList');
const tabs = document.querySelectorAll('.tab');
const toggleDetail = document.getElementById('toggleDetail');
const closeDetailBtn = document.getElementById('closeDetailBtn');
const resultSummaryWrap = document.getElementById('resultSummaryWrap');
const audioBtn = document.getElementById('audioBtn');
const toggleWordBtn = document.getElementById('toggleWordBtn');

toggleWordBtn.onclick = function(){
    hideWordMode = !hideWordMode;
    if(hideWordMode){
        toggleWordBtn.textContent = "显示单词";
        toggleWordBtn.classList.add('hide');
        questionEl.classList.add('hidden-word');
    }else{
        toggleWordBtn.textContent = "隐藏单词";
        toggleWordBtn.classList.remove('hide');
        questionEl.classList.remove('hidden-word');
    }
};

audioBtn.onclick = ()=>{
    if(!questions[current]) return;
    playWordAudio(questions[current].en);
};

toggleDetail.onclick = function(){
    if(resultSection.style.display === 'none'){
        showResult();
        resultSummaryWrap.classList.remove('no-close');
        toggleDetail.textContent = '隐藏详情';
    }else{
        resultSection.style.display = 'none';
        toggleDetail.textContent = '查看详情';
    }
};

closeDetailBtn.onclick = function(){
    resultSection.style.display = 'none';
    toggleDetail.textContent = '查看详情';
};

function shuffle(arr) {
    return [...arr].sort(() => Math.random() - 0.5);
}

function updateStatus() {
    const total = questions.length;
    const done = record.length;
    const wrong = done - correctCount;
    const rate = done === 0 ? 0 : Math.round((correctCount / done) * 100);
    const sec = Math.floor((Date.now() - startTime) / 1000);
    statusBar.innerHTML = `总词数：${total}　已完成：${done}　正确：${correctCount}　错误：${wrong}　正确率：${rate}%　用时：${sec}秒`;
}

function startTimer() {
    timer = setInterval(updateStatus, 1000);
}

function playWordAudio(word){
    if(currentWordAudio){
        currentWordAudio.pause();
        currentWordAudio = null;
    }
    audioBtn.classList.add('playing');
    const aud = new Audio(`/MP3/${word}.MP3`);
    currentWordAudio = aud;
    aud.currentTime = 0;
    aud.play().catch(()=>{});
    aud.onended = ()=>{
        audioBtn.classList.remove('playing');
        currentWordAudio = null;
    };
}

function loadQuestion() {
    if (current >= questions.length) {
        clearInterval(timer);
        showFinish();
        showResult();
        toggleDetail.textContent = '隐藏详情';
        resultSummaryWrap.classList.add('no-close');
        return;
    }
    const q = questions[current];
    answered = false;
    questionEl.textContent = q.en;

    // 载入新题目强制按照开关状态设置显示/隐藏，杜绝闪现
    if(hideWordMode){
        questionEl.classList.add('hidden-word');
    }else{
        questionEl.classList.remove('hidden-word');
    }

    const options = shuffle(q.hx);
    optionsEl.innerHTML = '';
    options.forEach(opt => {
        const div = document.createElement('div');
        div.className = 'option';
        div.textContent = opt;
        div.onclick = () => checkAnswer(div, opt);
        optionsEl.appendChild(div);
    });

    setTimeout(()=>{
        playWordAudio(q.en);
    },300);
}

function checkAnswer(el, value) {
    if (answered) return;
    answered = true;
    const q = questions[current];
    const all = document.querySelectorAll('.option');
    all.forEach(o => o.classList.add('disabled'));
    let isCorrect = false;

    if (value === q.cn) {
        el.classList.add('correct');
        correctCount++;
        isCorrect = true;
        correctAudio.currentTime = 0;
        correctAudio.play();
    } else {
        el.classList.add('wrong');
        all.forEach(o => {
            if (o.textContent === q.cn) o.classList.add('correct');
        });
        wrongAudio.currentTime = 0;
        wrongAudio.play();
    }

    record.push({ en: q.en, cn: q.cn, user: value, isCorrect, hx: q.hx });
    updateStatus();

    // 倒计时结束切换前，才展示本题单词；切换下一题会立刻重新隐藏
    setTimeout(() => {
        // 仅开启隐藏模式时，短暂展示单词
        if(hideWordMode){
            questionEl.classList.remove('hidden-word');
        }
        current++;
        loadQuestion();
    }, 800);
}

function showFinish() {
    quizBox.style.display = 'none';
    finishBox.style.display = 'block';

    const wrongList = record.filter(item => !item.isCorrect);
    wrongDataBox.value = JSON.stringify(wrongList);

    finishBox.innerHTML = `
        <div class="finish-title">🎉 答题完成！</div>
        <div class="btn-group">
            <button class="restart-btn" id="restartBtn">重新答题</button>
            <button class="wrong-btn" id="goWrongBtn">错题重练</button>
        </div>
    `;
    document.getElementById('restartBtn').onclick = resetQuiz;
    document.getElementById('goWrongBtn').onclick = submitWrongQuiz;
}

function submitWrongQuiz() {
    const wrongData = wrongDataBox.value.trim();
    if (!wrongData || wrongData === '[]') {
        alert('恭喜你，没有错题！');
        return;
    }
    let wjmName = window.location.pathname.substring(window.location.pathname.lastIndexOf('/') + 1).split('.')[0];
    document.getElementById('wrongData').value = wrongData;
    document.getElementById('wjmName').value = wjmName;
    document.getElementById('wrongForm').submit();
}

function resetQuiz() {
    current = 0;
    correctCount = 0;
    record = [];
    answered = false;
    startTime = Date.now();
    questions = shuffle([...wordList]);
    finishBox.style.display = 'none';
    resultSection.style.display = 'none';
    toggleDetail.textContent = '查看详情';
    quizBox.style.display = 'block';
    clearInterval(timer);
    startTimer();
    updateStatus();
    loadQuestion();
}

function showResult() {
    const total = questions.length;
    const done = record.length;
    const wrong = done - correctCount;
    const rate = done === 0 ? 0 : Math.round((correctCount / done) * 100);
    const sec = Math.floor((Date.now() - startTime) / 1000);
    resultStats.innerHTML = `总题数：${total} | 正确：${correctCount} | 错误：${wrong} | 正确率：${rate}% | 用时：${sec}秒`;
    resultSection.style.display = 'block';
    renderDetail('all');
}

function renderDetail(type) {
    detailList.innerHTML = '';
    let list = type === 'wrong' ? record.filter(i => !i.isCorrect) : record;
    if (list.length === 0) {
        detailList.innerHTML = `<div style="text-align:center;padding:20px;">暂无数据</div>`;
        return;
    }
    list.forEach((item, i) => {
        const dom = document.createElement('div');
        dom.className = 'detail-item';
        dom.innerHTML = `
            <div class="detail-en">${i+1}. ${item.en}</div>
            <div>你的答案：${item.user}</div>
            <div>正确答案：${item.cn}</div>
            <div class="${item.isCorrect ? 'detail-correct' : 'detail-wrong'}">
                ${item.isCorrect ? '✓ 正确' : '✗ 错误'}
            </div>
        `;
        detailList.appendChild(dom);
    });
}

tabs.forEach(t => {
    t.onclick = () => {
        tabs.forEach(x => x.classList.remove('active'));
        t.classList.add('active');
        renderDetail(t.dataset.tab);
    };
});

startTimer();
updateStatus();
loadQuestion();

window.addEventListener('DOMContentLoaded', function() {
    try {
      const savedData = localStorage.getItem('wordCardGlobalState');
      if (!savedData) return;
      const config = JSON.parse(savedData);
      const dclist = config.dclist || '';
      const idArray = dclist.split(',');
      if (idArray.length === 0) return;
      const randomIndex = Math.floor(Math.random() * idArray.length);
      const randomId = idArray[randomIndex].trim();
      const plink = document.getElementById('pcard');
      if (plink) plink.href = `/p/${randomId}.html`;
      const mlink = document.getElementById('mcard');
      if (mlink) mlink.href = `/p/${randomId}.html`;
    } catch (err) {}
});
</script>

</body>
</html>