Hướng dẫn giải Bài 4 (Trang 39 SGK Tiếng Anh 10 - Bright)
<p><strong>Bài 4</strong></p>
<p><strong>4. Fill in each gap with <em>for</em> or <em>since</em></strong></p>
<p><strong>1.</strong> Paul has trained for a marathon _____ a month.</p>
<p><strong>2.</strong> I haven’t seen John again _____ last week’s RSPCA meeting.</p>
<p><strong>3.</strong> UNICEF has provided healthcare support to children _____ 1946.</p>
<p><strong>4.</strong> My aunt, Lucy has supported our community _____ over a decade.</p>
<p><strong>5.</strong> My dad has volunteered in many community service activities _____ he was a high school student.</p>
<p><strong>Phương pháp giải:</strong></p>
<p><strong>since </strong>+ mốc thời gian</p>
<p><strong>for </strong>+ khoảng thời gian</p>
<p><strong>Lời giải chi tiết:</strong></p>
<p dir="ltr"><strong>1.</strong> Paul has trained for a marathon <strong>for</strong> a month.</p>
<p dir="ltr"><strong>Giải thích: </strong>“a month” <em>(1 tháng)</em> là khoảng thời gian -> dùng “for”.</p>
<p dir="ltr"><strong>2.</strong> I haven’t seen John again <strong>since</strong> last week’s RSPCA meeting.</p>
<p dir="ltr"><strong>Giải thích: </strong>“last week’s RSPCA meeting” là một mốc thời gian -> dùng “since”.</p>
<p dir="ltr"><strong>3.</strong> UNICEF has provided healthcare support to children <strong>since</strong> 1946.</p>
<p dir="ltr"><strong>Giải thích: </strong>“1946” là một mốc thời gian -> dùng “since”.</p>
<p dir="ltr"><strong>4.</strong> My aunt, Lucy has supported our community <strong>for</strong> over a decade.</p>
<p dir="ltr"><strong>Giải thích: </strong>“over a decade” <em>(hơn một thập kỉ)</em> là một khoảng thời gian -> dùng “for”.</p>
<p dir="ltr"><strong>5.</strong> My dad has volunteered in many community service activities <strong>since</strong> he was a high school student.</p>
<p dir="ltr"><strong>Giải thích:</strong> “he was a high school student” <em>(ông ấy là học sinh trung học)</em> là một mốc thời gian -> dùng “since”.</p>
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