【IELTSリーディング】キーワード探しの「コツ」を練習問題と一緒に解説

【IELTSリーディング】キーワード探しの「コツ」を練習問題と一緒に解説

こんにちは、SOLO IELTS TOEFLのルークです。

このブログでは時間内に解くためにキーワードを探す方法を紹介します。

時間内に解くための必須スキルです

リーディングとキーワード探し

IELTSのリーディングは全文を読んで問に答えようとすると、時間切れになってしまいます。

全体像を把握した後は、問に含まれているキーワードをパラグラフ内で探していく必要があります。

ほとんどの場合において問の順番通りにパラグラフ内に答えが出現します

キーワードはパラフレーズ

問のキーワードがパッセージ内で出現する際はパラフレーズされている可能性が高いです。

つまり別の言い換えで表現されているということです。例を見てみましょう。

問: This program has nonhuman cast of characters.

実際にパラグラフで出現する際は以下のようになります。

Charlie Huston crash-lands on a planet ruled entirely by animals.

ほとんどの場合においてパラフレーズされると心得てください

キーワード探しの練習

それではIELTSリーディングの練習問題を解いていく中でパラフレーズを見つける練習をしてみましょう。

時間は20分以内で厳守してくださいね。

You should spend about 20 minutes on Questions 1-12, which are based on Reading Passage 1 below.

Scientists Are Mapping the World’s Largest Volcano

A
After 36 days of battling sharks that kept biting their equipment, scientists have returned from the remote Pacific Ocean with a new way of looking at the world’s largest – and possibly most mysterious – volcano, Tamu Massif.

B
The team has begun making 3-D maps that offer the clearest look yet at the underwater mountain, which covers an area the size of New Mexico. In the coming months, the maps will be refined and the data analyzed, with the ultimate goal of figuring out how the mountain was formed.

C
It’s possible that the western edge of Tamu Massif is actually a separate mountain that formed at a different time, says William Sager, a geologist at the University of Houston who led the expedition. That would explain some differences between the western part of the mountain and the main body.

D
The team also found that the massif (as such a massive mountain is known) is highly pockmarked with craters and cliffs. Magnetic analysis provides some insight into the mountain’s genesis, suggesting that part of it formed through steady releases of lava along the intersection of three mid-ocean ridges, while part of it is harder to explain. A working theory is that a large plume of hot mantle rock may have contributed additional heat and material, a fairly novel idea.

E
Tamu Massif lies about 1,000 miles (1,600 kilometers) east of Japan. It is a rounded dome, or shield volcano, measuring 280 by 400 miles (450 by 650 kilometers). Its top lies more than a mile (about 2,000 meters) below the ocean surface and is 50 times larger than the biggest active volcano on Earth, Hawaii’s Mauna Loa. Sager published a paper in 2013 that said the main rise of Tamu Massif is most likely a single volcano, instead of a complex of multiple volcanoes that smashed together. But he couldn’t explain how something so big formed.

F
The team used sonar and magnetometers (which measure magnetic fields) to map more than a million square kilometers of the ocean floor in great detail. Sager and students teamed up with Masao Nakanishi of Japan’s Chiba University, with Sager receiving funding support from the National Geographic Society and the Schmidt Ocean Institute.

G
Since sharks are attracted to magnetic fields, the toothy fish “were all over our magnetometer, and it got pretty chomped up,” says Sager. When the team replaced the device with a spare, that unit was nearly ripped off by more sharks. The magnetic field research suggests the mountain formed relatively quickly, sometime around 145 million years ago. Part of the volcano sports magnetic “stripes,” or bands with different magnetic properties, suggesting that lava flowed out evenly from the mid-ocean ridges over time and changed in polarity each time Earth’s magnetic field reversed direction. The central part of the peak is more jumbled, so it may have formed more quickly or through a different process.

H
Sager isn’t sure what caused the magnetic anomalies yet, but suspects more complex forces were at work than simply eruptions from the ridges. It’s possible a deep plume of hot rock from the mantle also contributed to the volcano’s formation, he says. Sager hopes the analysis will also help explain about a dozen other similar features on the ocean floor, as well as add to the overall understanding of plate tectonics.

Questions 1-8
Reading Passage 1 has eight paragraphs, A-H. What paragraph has the following information?

Write the correct letter, A-H, in boxes 1-8 on your answer sheet.

1_________Possible explanation of the differences between parts of the mountain
2_________Size data
3_________A new way of looking
4_________Problem with sharks
5_________Uncertainty of the anomalies
6_________Equipment which measures magnetic fields
7_________The start of making maps
8_________A working theory

Questions 9-12
Complete the sentences using NO MORE THAN TWO WORDS from the passage.
Write your answers in boxes 9–12 on your answer sheet.

A big plume of 9_________rock may have contributed extra heat and material.
Tamu Massif is a 10_________ , or shield volcano.
Replacing the device with a 11 didn’t help, as that unit was nearly ripped off by more sharks.
Sager believes that the magnetic anomalies were caused by something more than 12 _________ from the ridges.

解答

1 C
2 E
3 A
4 G
5 H
6 F
7 B
8 D
9 hot mantle
10 rounded dome
11 spare
12 simply eruption

上記の問題を元に該当箇所を見ていきましょう。

問1の解き方

問1. Possible explanation of the differences between parts of the mountain

パラグラフを 読み進めていくと、Cのパラグラフに似た単語が見つかります

It’s possible that the western edge of Tamu Massif is actually a separate mountain that formed at a different time, says William Sager, a geologist at the University of Houston who led the expedition. That would explain some differences

パラフレーズされていない問題でした

問2の解き方

問2. Size data

キーワードはこれだけです。データが大小について言及している箇所を探します。

“Tamu Massif lies about 1,000 miles (1,600 kilometers) east of Japan. It is a rounded dome, or shield volcano, measuring 280 by 400 miles (450 by 650 kilometers). Its top lies more than a mile (about 2,000 meters) below the ocean surface and is 50 times

Eのバラグラフに数値が多くでてくることに気づきます

問3の解き方

問3. the new way of looking

冒頭のパラグラフAに全く同じ単語が出てきます。

“After 36 days of battling sharks that kept biting their equipment, scientists have returned from the remote Pacific Ocean with a new way of looking at the world’s largest – and possibly most mysterious – volcano, Tamu Massif.”

キーワード探しのコツはつかめたでしょうか

英語の「今まで」と「これから」

最短で伸ばすならSolo

SoloはIELTSのスコアを最短で伸ばします。

自分だけで学習できる自信がない人は是非一度カウンセリングに来てみてね。

弊社のIELTSのプロ講師たちが待ってるよ。

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